tweak
This commit is contained in:
James
parent
9f562d5569
commit
0d453864cc
347
BLE.ino
347
BLE.ino
@ -1,347 +0,0 @@
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BLEScan* pBLEScan = nullptr;
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BLEClient* pClient = nullptr;
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BLEAdvertisedDevice* pRemoteDevice = nullptr;
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BLERemoteService* pRemoteService = nullptr;
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BLERemoteCharacteristic* pRemoteCharacteristic_rx = nullptr;
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BLERemoteCharacteristic* pRemoteCharacteristic_tx = nullptr;
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// 0000ff01-0000-1000-8000-00805f9b34fb
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// Notifications from this characteristic is received data from BMS
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// NOTIFY, READ
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// 0000ff02-0000-1000-8000-00805f9b34fb
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// Write this characteristic to send data to BMS
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// READ, WRITE, WRITE NO RESPONSE
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boolean doScan = false; // becomes true when BLE is initialized and scanning is allowed
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boolean doConnect = false; // becomes true when correct ID is found during scanning
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boolean ble_client_connected = false; // true when fully connected
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unsigned int ble_packets_requested = 0b00; // keeps track of requested packets
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unsigned int ble_packets_received = 0b00; // keeps track of received packets
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// ======= CALLBACKS =========
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void MyEndOfScanCallback(BLEScanResults pBLEScanResult){
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bms_status=false; // BMS not found
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if(BLE_CALLBACK_DEBUG){
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debug("BLE: scan finished");
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Serial.println("Scan finished.");
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}
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}
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class MyAdvertisedDeviceCallbacks : public BLEAdvertisedDeviceCallbacks{
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// called for each advertising BLE server
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void onResult(BLEAdvertisedDevice advertisedDevice){
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// found a device
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if(BLE_CALLBACK_DEBUG){
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debug(
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String("BLE: found ") +
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String(advertisedDevice.getName().c_str()) +
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String(" with address ") +
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String(advertisedDevice.getAddress().toString().c_str()) +
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String(" and RSSI ") +
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String(advertisedDevice.getRSSI())
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);
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Serial.print("BLE: found ");
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Serial.println(advertisedDevice.toString().c_str());
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}
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// Check if device is advertising the specific service UUID
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if (!advertisedDevice.isAdvertisingService(serviceUUID)) {
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debug("Device does not advertise the specified service UUID.");
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return;
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}
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if(BLE_CALLBACK_DEBUG){
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debug("BLE: target device found");
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}
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pBLEScan->stop();
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// delete old remote device, create new one
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if(pRemoteDevice != nullptr){
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delete pRemoteDevice;
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}
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pRemoteDevice = new BLEAdvertisedDevice(advertisedDevice);
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doConnect = true;
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}
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};
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class MyClientCallback : public BLEClientCallbacks{
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// called on connect/disconnect
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void onConnect(BLEClient* pclient){
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if(BLE_CALLBACK_DEBUG){
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debug(String("BLE: connecting to ") + String(pclient->getPeerAddress().toString().c_str()));
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}
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}
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void onDisconnect(BLEClient* pclient){
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ble_client_connected = false;
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doConnect = false;
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if(BLE_CALLBACK_DEBUG){
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debug(String("BLE: disconnected from ") + String(pclient->getPeerAddress().toString().c_str()));
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}
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}
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};
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static void MyNotifyCallback(BLERemoteCharacteristic *pBLERemoteCharacteristic, uint8_t *pData, size_t length, bool isNotify){
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//this is called when BLE server sents data via notification
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//hexDump((char*)pData, length);
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if(!bleCollectPacket((char *)pData, length)){
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debug("ERROR: packet could not be collected.");
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}
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}
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// ======= OTHERS =========
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void handleBLE(){
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static unsigned long prev_millis_standby = 0;
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prev_millis_standby = millis();
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while(true){ // loop until we hit a timeout or gathered all packets
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if((ble_packets_received == BLE_PACKETSRECEIVED_BEFORE_STANDBY) || (millis()>prev_millis_standby+BLE_TIMEOUT)){
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if(ble_packets_received == BLE_PACKETSRECEIVED_BEFORE_STANDBY){
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debug("BLE: all packets received");
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bms_status=true; // BMS was connected, data up-to-date
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printBasicInfo();
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printCellInfo();
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}else{
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debug("BLE: connection timeout");
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bms_status=false; // BMS not (fully) connected
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}
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break; // we're done with BLE, exit while loop
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}
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else if (doConnect){
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// found the desired BLE server, now connect to it
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if (connectToServer()){
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ble_client_connected = true;
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ble_packets_received=0;
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ble_packets_requested=0;
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}else{
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ble_client_connected = false;
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debug("BLE: failed to connect");
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}
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doConnect = false;
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}
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if (ble_client_connected){
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// if connected to BLE server, request all data
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if((ble_packets_requested & 0b01)!=0b01){
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// request packet 0b01
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debug("BLE: requesting packet 0b01");
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delay(50);
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if(bmsRequestBasicInfo()){
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ble_packets_requested |= 0b01;
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}
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}else if(((ble_packets_received & 0b01)==0b01) && ((ble_packets_requested & 0b10)!=0b10)){
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// request packet 0b10 after 0b01 has been received
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debug("BLE: requesting packet 0b10");
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delay(50);
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if(bmsRequestCellInfo()){
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ble_packets_requested |= 0b10;
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}
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}
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}else if ((!doConnect)&&(doScan)){
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// we are not connected, so we can scan for devices
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debug("BLE: not connected, starting scan");
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Serial.print("BLE is not connected, starting scan");
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// Disconnect client
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if((pClient != nullptr)&&(pClient->isConnected())){
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pClient->disconnect();
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}
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// stop scan (if running) and start a new one
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pBLEScan->setActiveScan(true);
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pBLEScan->setInterval(1 << 8); // 160 ms
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pBLEScan->setWindow(1 << 7); // 80 ms
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pBLEScan->start(BLE_SCAN_DURATION, MyEndOfScanCallback, false); // non-blocking, use a callback
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doScan=false;
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debug("BLE: scan started");
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}
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}
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}
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void bleGatherPackets(){
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bleStart();
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handleBLE();
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blePause();
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BLEDevice::deinit(false);
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}
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void bleStart(){
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Serial.print("Starting BLE... ");
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BLEDevice::init("");
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//esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT); // release some unused memory
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// Retrieve a BLE client
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pClient = BLEDevice::createClient();
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pClient->setClientCallbacks(new MyClientCallback());
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// Retrieve a BLE scanner
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pBLEScan = BLEDevice::getScan();
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pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
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bleContinue();
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Serial.println("done");
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}
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void blePause(){
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// stop scanning and disconnect from all devices
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doScan=false;
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// Disconnect client
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if((pClient != nullptr)&&(pClient->isConnected())){
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pClient->disconnect();
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}
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delay(50);
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pBLEScan->stop();
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ble_client_connected=false;
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doConnect=false;
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ble_packets_received=0;
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ble_packets_requested=0;
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}
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void bleContinue(){
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// Prepare for scanning
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ble_client_connected=false;
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doConnect=false;
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ble_packets_received=0;
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doScan=true; // start scanning for new devices
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}
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bool connectToServer(){
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if(pRemoteDevice==nullptr){
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Serial.println("Invalid remote device, can't connect");
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return false;
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}
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// Disconnect client
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if((pClient != nullptr)&&(pClient->isConnected())){
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pClient->disconnect();
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}
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Serial.print("Forming a connection to ");
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Serial.println(pRemoteDevice->getAddress().toString().c_str());
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delay(100);
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// Connect to the remote BLE Server.
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pClient->connect(pRemoteDevice);
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if(!(pClient->isConnected())){
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debug(String("BLE: failed to connect"));
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Serial.println("Failed to connect to server");
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pClient->disconnect();
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return false;
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}
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Serial.println(" - Connected to server");
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// Get remote service
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pRemoteService = pClient->getService(serviceUUID);
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if (pRemoteService == nullptr){
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debug(String("BLE: failed to find service UUID"));
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Serial.print("Failed to find our service UUID: ");
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Serial.println(serviceUUID.toString().c_str());
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pClient->disconnect();
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return false;
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}
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Serial.println(" - Found our service");
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// Get BMS receive characteristic
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pRemoteCharacteristic_rx = pRemoteService->getCharacteristic(charUUID_rx);
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if (pRemoteCharacteristic_rx == nullptr){
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debug(String("BLE: failed to find RX UUID"));
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Serial.print("Failed to find rx UUID: ");
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Serial.println(charUUID_rx.toString().c_str());
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pClient->disconnect();
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return false;
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}
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Serial.println(" - Found RX characteristic");
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// Register callback for remote characteristic (receive channel)
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if (pRemoteCharacteristic_rx->canNotify()){
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pRemoteCharacteristic_rx->registerForNotify(MyNotifyCallback);
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}else{
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debug(String("BLE: failed to register notification of remote characteristic"));
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Serial.println("Failed to register notification of remote characteristic");
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pClient->disconnect();
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return false;
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}
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Serial.println(" - Registered remote characteristic for notification");
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// Get BMS transmit characteristic
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pRemoteCharacteristic_tx = pRemoteService->getCharacteristic(charUUID_tx);
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if (pRemoteCharacteristic_tx == nullptr){
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debug(String("BLE: failed to find TX UUID"));
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Serial.print("Failed to find tx UUID: ");
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Serial.println(charUUID_tx.toString().c_str());
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pClient->disconnect();
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return false;
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}
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Serial.println(" - Found TX characteristic");
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// Check whether tx is writeable
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if (!(pRemoteCharacteristic_tx->canWriteNoResponse())){
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debug(String("BLE: failed TX remote characteristic is not writable"));
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Serial.println("Failed TX remote characteristic is not writable");
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pClient->disconnect();
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return false;
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}
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Serial.println(" - TX is writable");
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delay(BLE_REQUEST_DELAY); // wait, otherwise writeValue doesn't work for some reason
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// to do: fix this ugly hack
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debug(String("BLE: connected"));
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return true;
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}
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bool sendCommand(uint8_t *data, uint32_t dataLen){
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if((pClient!=nullptr)&&(pClient->isConnected())){
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pRemoteCharacteristic_tx->writeValue(data, dataLen, false);
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return true;
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}else{
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return false;
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}
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}
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@ -1,265 +0,0 @@
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bool isPacketValid(byte *packet) //check if packet is valid
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{
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if (packet == nullptr){
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return false;
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}
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bmsPacketHeaderStruct *pHeader = (bmsPacketHeaderStruct *)packet;
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int checksumPos = pHeader->dataLen + 2; // status + data len + data
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int offset = 2; // header 0xDD and command type are not in data length
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if (packet[0] != 0xDD){
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// start bit missing
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return false;
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}
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if (packet[offset + checksumPos + 2] != 0x77){
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// stop bit missing
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return false;
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}
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byte checksum = 0;
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for (int i = 0; i < checksumPos; i++){
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checksum += packet[offset + i];
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}
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checksum = ((checksum ^ 0xFF) + 1) & 0xFF;
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if (checksum != packet[offset + checksumPos + 1]){
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return false;
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}
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return true;
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}
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bool processBasicInfo(packBasicInfoStruct *output, byte *data, unsigned int dataLen)
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{
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// Expected data len
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if (dataLen != 0x1B)
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{
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return false;
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}
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output->Volts = ((uint32_t)two_ints_into16(data[0], data[1])) * 10; // Resolution 10 mV -> convert to milivolts eg 4895 > 48950mV
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output->Amps = ((int32_t)two_ints_into16(data[2], data[3])) * 10; // Resolution 10 mA -> convert to miliamps
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output->Watts = output->Volts * output->Amps / 1000000; // W
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output->CapacityRemainAh = ((uint16_t)two_ints_into16(data[4], data[5])) * 10;
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output->CapacityRemainPercent = ((uint8_t)data[19]);
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output->Temp1 = (((uint16_t)two_ints_into16(data[23], data[24])) - 2731);
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output->Temp2 = (((uint16_t)two_ints_into16(data[25], data[26])) - 2731);
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output->BalanceCodeLow = (two_ints_into16(data[12], data[13]));
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output->BalanceCodeHigh = (two_ints_into16(data[14], data[15]));
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output->MosfetStatus = ((byte)data[20]);
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return true;
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}
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bool processCellInfo(packCellInfoStruct *output, byte *data, unsigned int dataLen)
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{
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uint16_t _cellSum;
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uint16_t _cellMin = 5000;
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||||||
uint16_t _cellMax = 0;
|
|
||||||
uint16_t _cellAvg;
|
|
||||||
uint16_t _cellDiff;
|
|
||||||
|
|
||||||
output->NumOfCells = dataLen / 2; // data contains 2 bytes per cell
|
|
||||||
|
|
||||||
//go trough individual cells
|
|
||||||
for (byte i = 0; i < dataLen / 2; i++)
|
|
||||||
{
|
|
||||||
output->CellVolt[i] = ((uint16_t)two_ints_into16(data[i * 2], data[i * 2 + 1])); // Resolution 1 mV
|
|
||||||
_cellSum += output->CellVolt[i];
|
|
||||||
if (output->CellVolt[i] > _cellMax)
|
|
||||||
{
|
|
||||||
_cellMax = output->CellVolt[i];
|
|
||||||
}
|
|
||||||
if (output->CellVolt[i] < _cellMin)
|
|
||||||
{
|
|
||||||
_cellMin = output->CellVolt[i];
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
output->CellMin = _cellMin;
|
|
||||||
output->CellMax = _cellMax;
|
|
||||||
output->CellDiff = _cellMax - _cellMin;
|
|
||||||
output->CellAvg = _cellSum / output->NumOfCells;
|
|
||||||
|
|
||||||
return true;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool bmsProcessPacket(byte *packet)
|
|
||||||
{
|
|
||||||
bool isValid = isPacketValid(packet);
|
|
||||||
|
|
||||||
if (isValid != true)
|
|
||||||
{
|
|
||||||
Serial.println("Invalid packer received");
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
|
|
||||||
bmsPacketHeaderStruct *pHeader = (bmsPacketHeaderStruct *)packet;
|
|
||||||
byte *data = packet + sizeof(bmsPacketHeaderStruct); // TODO Fix this ugly hack
|
|
||||||
unsigned int dataLen = pHeader->dataLen;
|
|
||||||
|
|
||||||
bool result = false;
|
|
||||||
|
|
||||||
// find packet type (basic info or cell info)
|
|
||||||
switch (pHeader->type)
|
|
||||||
{
|
|
||||||
case cBasicInfo:
|
|
||||||
{
|
|
||||||
// Process basic info
|
|
||||||
result = processBasicInfo(&packBasicInfo, data, dataLen);
|
|
||||||
if(result==true){
|
|
||||||
ble_packets_received |= 0b01;
|
|
||||||
bms_last_update_time=millis();
|
|
||||||
}
|
|
||||||
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
case cCellInfo:
|
|
||||||
{
|
|
||||||
// Process cell info
|
|
||||||
result = processCellInfo(&packCellInfo, data, dataLen);
|
|
||||||
if(result==true){
|
|
||||||
ble_packets_received |= 0b10;
|
|
||||||
bms_last_update_time=millis();
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
default:
|
|
||||||
result = false;
|
|
||||||
Serial.printf("Unsupported packet type detected. Type: %d", pHeader->type);
|
|
||||||
}
|
|
||||||
|
|
||||||
return result;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool bleCollectPacket(char *data, uint32_t dataSize) // reconstruct packet, called by notifyCallback function
|
|
||||||
{
|
|
||||||
static uint8_t packetstate = 0; //0 - empty, 1 - first half of packet received, 2- second half of packet received
|
|
||||||
|
|
||||||
// packet sizes:
|
|
||||||
// (packet ID 03) = 4 (header) + 23 + 2*N_NTCs + 2 (checksum) + 1 (stop)
|
|
||||||
// (packet ID 04) = 4 (header) + 2*NUM_CELLS + 2 (checksum) + 1 (stop)
|
|
||||||
static uint8_t packetbuff[4 + 2*25 + 2 + 1] = {0x0}; // buffer size suitable for up to 25 cells
|
|
||||||
|
|
||||||
static uint32_t totalDataSize = 0;
|
|
||||||
bool retVal = false;
|
|
||||||
//hexDump(data,dataSize);
|
|
||||||
|
|
||||||
if(totalDataSize + dataSize > sizeof(packetbuff)){
|
|
||||||
Serial.printf("ERROR: datasize is overlength.");
|
|
||||||
|
|
||||||
debug(
|
|
||||||
String("ERROR: datasize is overlength. ") +
|
|
||||||
String("allocated=") +
|
|
||||||
String(sizeof(packetbuff)) +
|
|
||||||
String(", size=") +
|
|
||||||
String(totalDataSize + dataSize)
|
|
||||||
);
|
|
||||||
|
|
||||||
totalDataSize = 0;
|
|
||||||
packetstate = 0;
|
|
||||||
|
|
||||||
retVal = false;
|
|
||||||
}
|
|
||||||
else if (data[0] == 0xdd && packetstate == 0) // probably got 1st half of packet
|
|
||||||
{
|
|
||||||
packetstate = 1;
|
|
||||||
for (uint8_t i = 0; i < dataSize; i++)
|
|
||||||
{
|
|
||||||
packetbuff[i] = data[i];
|
|
||||||
}
|
|
||||||
totalDataSize = dataSize;
|
|
||||||
retVal = true;
|
|
||||||
}
|
|
||||||
else if (data[dataSize - 1] == 0x77 && packetstate == 1) //probably got 2nd half of the packet
|
|
||||||
{
|
|
||||||
packetstate = 2;
|
|
||||||
for (uint8_t i = 0; i < dataSize; i++)
|
|
||||||
{
|
|
||||||
packetbuff[i + totalDataSize] = data[i];
|
|
||||||
}
|
|
||||||
totalDataSize += dataSize;
|
|
||||||
retVal = true;
|
|
||||||
}
|
|
||||||
|
|
||||||
if (packetstate == 2) //got full packet
|
|
||||||
{
|
|
||||||
uint8_t packet[totalDataSize];
|
|
||||||
memcpy(packet, packetbuff, totalDataSize);
|
|
||||||
|
|
||||||
bmsProcessPacket(packet); //pass pointer to retrieved packet to processing function
|
|
||||||
packetstate = 0;
|
|
||||||
totalDataSize = 0;
|
|
||||||
retVal = true;
|
|
||||||
}
|
|
||||||
return retVal;
|
|
||||||
}
|
|
||||||
|
|
||||||
bool bmsRequestBasicInfo(){
|
|
||||||
// header status command length data checksum footer
|
|
||||||
// DD A5 03 00 FF FD 77
|
|
||||||
uint8_t data[7] = {0xdd, 0xa5, cBasicInfo, 0x0, 0xff, 0xfd, 0x77};
|
|
||||||
return sendCommand(data, sizeof(data));
|
|
||||||
}
|
|
||||||
|
|
||||||
bool bmsRequestCellInfo(){
|
|
||||||
// header status command length data checksum footer
|
|
||||||
// DD A5 04 00 FF FC 77
|
|
||||||
uint8_t data[7] = {0xdd, 0xa5, cCellInfo, 0x0, 0xff, 0xfc, 0x77};
|
|
||||||
return sendCommand(data, sizeof(data));
|
|
||||||
}
|
|
||||||
|
|
||||||
void printBasicInfo() //debug all data to uart
|
|
||||||
{
|
|
||||||
Serial.printf("Total voltage: %f\n", (float)packBasicInfo.Volts / 1000);
|
|
||||||
Serial.printf("Amps: %f\n", (float)packBasicInfo.Amps / 1000);
|
|
||||||
Serial.printf("CapacityRemainAh: %f\n", (float)packBasicInfo.CapacityRemainAh / 1000);
|
|
||||||
Serial.printf("CapacityRemainPercent: %d\n", packBasicInfo.CapacityRemainPercent);
|
|
||||||
Serial.printf("Temp1: %f\n", (float)packBasicInfo.Temp1 / 10);
|
|
||||||
Serial.printf("Temp2: %f\n", (float)packBasicInfo.Temp2 / 10);
|
|
||||||
Serial.printf("Balance Code Low: 0x%x\n", packBasicInfo.BalanceCodeLow);
|
|
||||||
Serial.printf("Balance Code High: 0x%x\n", packBasicInfo.BalanceCodeHigh);
|
|
||||||
Serial.printf("Mosfet Status: 0x%x\n", packBasicInfo.MosfetStatus);
|
|
||||||
}
|
|
||||||
|
|
||||||
void printCellInfo() //debug all data to uart
|
|
||||||
{
|
|
||||||
Serial.printf("Number of cells: %u\n", packCellInfo.NumOfCells);
|
|
||||||
for (byte i = 1; i <= packCellInfo.NumOfCells; i++)
|
|
||||||
{
|
|
||||||
Serial.printf("Cell no. %u", i);
|
|
||||||
Serial.printf(" %f\n", (float)packCellInfo.CellVolt[i - 1] / 1000);
|
|
||||||
}
|
|
||||||
Serial.printf("Max cell volt: %f\n", (float)packCellInfo.CellMax / 1000);
|
|
||||||
Serial.printf("Min cell volt: %f\n", (float)packCellInfo.CellMin / 1000);
|
|
||||||
Serial.printf("Difference cell volt: %f\n", (float)packCellInfo.CellDiff / 1000);
|
|
||||||
Serial.printf("Average cell volt: %f\n", (float)packCellInfo.CellAvg / 1000);
|
|
||||||
Serial.println();
|
|
||||||
}
|
|
||||||
|
|
||||||
void hexDump(const char *data, uint32_t dataSize) //debug function
|
|
||||||
{
|
|
||||||
Serial.println("HEX data:");
|
|
||||||
|
|
||||||
for (int i = 0; i < dataSize; i++)
|
|
||||||
{
|
|
||||||
Serial.printf("0x%x, ", data[i]);
|
|
||||||
}
|
|
||||||
Serial.println("");
|
|
||||||
}
|
|
||||||
|
|
||||||
int16_t two_ints_into16(int highbyte, int lowbyte) // turns two bytes into a single long integer
|
|
||||||
{
|
|
||||||
int16_t result = (highbyte);
|
|
||||||
result <<= 8; //Left shift 8 bits,
|
|
||||||
result = (result | lowbyte); //OR operation, merge the two
|
|
||||||
return result;
|
|
||||||
}
|
|
||||||
642
ESPBMS.ino
642
ESPBMS.ino
@ -1,40 +1,3 @@
|
|||||||
/*
|
|
||||||
* Xiaoxiang BMS to MQTT via WiFi
|
|
||||||
* by Bas Vermulst - https://github.com/BeaverUI/ESP32-BluetoothBMS2MQTT
|
|
||||||
*
|
|
||||||
* Based on original work from https://github.com/kolins-cz/Smart-BMS-Bluetooth-ESP32/blob/master/README.md
|
|
||||||
*
|
|
||||||
|
|
||||||
=== configuring ===
|
|
||||||
Using the #define parameters in the CONFIGURATION section, do the following:
|
|
||||||
1) configure WiFi via WIFI_SSID and WIFI_PASSWORD
|
|
||||||
2) configure MQTT broker via MQTTSERVER
|
|
||||||
3) set unique node name via NODE_NAME
|
|
||||||
4) ensure the BMS settings are OK. You can verify the name and address using the "BLE Scanner" app on an Android phone.
|
|
||||||
|
|
||||||
|
|
||||||
=== compiling ===
|
|
||||||
1) Add ESP-WROVER to the board manager:
|
|
||||||
- File --> Preferences, add to board manager URLs: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
|
|
||||||
- Then, Tools --> Board --> Board manager... --> install ESP32 package v2.0.3 or later.
|
|
||||||
|
|
||||||
|
|
||||||
2) Install required libraries:
|
|
||||||
- MQTT (by Joel Gaehwiler)
|
|
||||||
Install via "Manage Libraries..." under Tools.
|
|
||||||
|
|
||||||
3) Configure board:
|
|
||||||
Select Tools --> Board --> "ESP32 Arduino" --> "ESP WRover module"
|
|
||||||
|
|
||||||
4) Connect board via USB.
|
|
||||||
|
|
||||||
5) Configure programming options:
|
|
||||||
Select appropriate programming port under Tools --> Port
|
|
||||||
Select correct partitioning: 1.9MB app (with OTA) or 2MB app with 2 MB SPIFFS - otherwise it won't fit
|
|
||||||
|
|
||||||
6) Program and go!
|
|
||||||
|
|
||||||
*/
|
|
||||||
|
|
||||||
// ==== CONFIGURATION ====
|
// ==== CONFIGURATION ====
|
||||||
// BMS
|
// BMS
|
||||||
@ -90,38 +53,593 @@ void loop(){
|
|||||||
bleGatherPackets();
|
bleGatherPackets();
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
BLEScan* pBLEScan = nullptr;
|
||||||
mqttclient.publish(GetTopic("ip"), IPAddressString(WiFi.localIP()));
|
BLEClient* pClient = nullptr;
|
||||||
mqttclient.publish(GetTopic("free-heap"), String(ESP.getFreeHeap()));
|
BLEAdvertisedDevice* pRemoteDevice = nullptr;
|
||||||
mqttclient.publish(GetTopic("maxalloc-heap"), String(xPortGetMinimumEverFreeHeapSize()));
|
BLERemoteService* pRemoteService = nullptr;
|
||||||
mqttclient.publish(GetTopic("ssid"), WiFi.SSID());
|
BLERemoteCharacteristic* pRemoteCharacteristic_rx = nullptr;
|
||||||
mqttclient.publish(GetTopic("rssi"), String(WiFi.RSSI()));
|
BLERemoteCharacteristic* pRemoteCharacteristic_tx = nullptr;
|
||||||
|
|
||||||
mqttclient.publish(GetTopic("reset-reason"), String(GetResetReason(0)) + String(" | ") + String(GetResetReason(1)));
|
boolean doScan = false; // becomes true when BLE is initialized and scanning is allowed
|
||||||
|
boolean doConnect = false; // becomes true when correct ID is found during scanning
|
||||||
|
|
||||||
mqttclient.publish(GetTopic("runtime"), String(millis()/1000));
|
boolean ble_client_connected = false; // true when fully connected
|
||||||
mqttclient.publish(GetTopic("battery-voltage"), String(battery_voltage,2));
|
|
||||||
|
|
||||||
mqttclient.publish(GetTopic("bms-status"), String(bms_status));
|
unsigned int ble_packets_requested = 0b00; // keeps track of requested packets
|
||||||
mqttclient.publish(GetTopic("bms-status-age"), String( (millis()-bms_last_update_time)/1000 ));
|
unsigned int ble_packets_received = 0b00; // keeps track of received packets
|
||||||
|
|
||||||
if(bms_status){
|
void MyEndOfScanCallback(BLEScanResults pBLEScanResult){
|
||||||
mqttclient.publish(GetTopic("number-of-cells"), String(packCellInfo.NumOfCells));
|
bms_status=false; // BMS not found
|
||||||
mqttclient.publish(GetTopic("current"), String((float)packBasicInfo.Amps / 1000,2));
|
|
||||||
mqttclient.publish(GetTopic("voltage"), String((float)packBasicInfo.Volts / 1000,2));
|
if(BLE_CALLBACK_DEBUG){
|
||||||
if(packCellInfo.NumOfCells != 0){
|
debug("BLE: scan finished");
|
||||||
mqttclient.publish(GetTopic("cell-voltage"), String((float)packBasicInfo.Volts /(1000*packCellInfo.NumOfCells), 2));
|
Serial.println("Scan finished.");
|
||||||
}
|
}
|
||||||
mqttclient.publish(GetTopic("cell-diff"), String((float)packCellInfo.CellDiff, 0));
|
|
||||||
mqttclient.publish(GetTopic("soc"), String((float)packBasicInfo.CapacityRemainPercent,1));
|
|
||||||
|
|
||||||
mqttclient.publish(GetTopic("temperature-1"), String((float)packBasicInfo.Temp1 / 10,1));
|
|
||||||
mqttclient.publish(GetTopic("temperature-2"), String((float)packBasicInfo.Temp2 / 10,1));
|
|
||||||
}
|
}
|
||||||
|
|
||||||
MqttPublishDebug();
|
class MyAdvertisedDeviceCallbacks : public BLEAdvertisedDeviceCallbacks{
|
||||||
|
// called for each advertising BLE server
|
||||||
|
|
||||||
mqttclient.loop();
|
void onResult(BLEAdvertisedDevice advertisedDevice){
|
||||||
|
// found a device
|
||||||
|
|
||||||
|
|
||||||
|
if(BLE_CALLBACK_DEBUG){
|
||||||
|
debug(
|
||||||
|
String("BLE: found ") +
|
||||||
|
String(advertisedDevice.getName().c_str()) +
|
||||||
|
String(" with address ") +
|
||||||
|
String(advertisedDevice.getAddress().toString().c_str()) +
|
||||||
|
String(" and RSSI ") +
|
||||||
|
String(advertisedDevice.getRSSI())
|
||||||
|
);
|
||||||
|
|
||||||
|
Serial.print("BLE: found ");
|
||||||
|
Serial.println(advertisedDevice.toString().c_str());
|
||||||
}
|
}
|
||||||
|
|
||||||
*/
|
// Check if device is advertising the specific service UUID
|
||||||
|
if (!advertisedDevice.isAdvertisingService(serviceUUID)) {
|
||||||
|
debug("Device does not advertise the specified service UUID.");
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if(BLE_CALLBACK_DEBUG){
|
||||||
|
debug("BLE: target device found");
|
||||||
|
}
|
||||||
|
|
||||||
|
pBLEScan->stop();
|
||||||
|
|
||||||
|
// delete old remote device, create new one
|
||||||
|
if(pRemoteDevice != nullptr){
|
||||||
|
delete pRemoteDevice;
|
||||||
|
}
|
||||||
|
pRemoteDevice = new BLEAdvertisedDevice(advertisedDevice);
|
||||||
|
|
||||||
|
doConnect = true;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
class MyClientCallback : public BLEClientCallbacks{
|
||||||
|
// called on connect/disconnect
|
||||||
|
void onConnect(BLEClient* pclient){
|
||||||
|
|
||||||
|
if(BLE_CALLBACK_DEBUG){
|
||||||
|
debug(String("BLE: connecting to ") + String(pclient->getPeerAddress().toString().c_str()));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void onDisconnect(BLEClient* pclient){
|
||||||
|
ble_client_connected = false;
|
||||||
|
doConnect = false;
|
||||||
|
|
||||||
|
if(BLE_CALLBACK_DEBUG){
|
||||||
|
debug(String("BLE: disconnected from ") + String(pclient->getPeerAddress().toString().c_str()));
|
||||||
|
}
|
||||||
|
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
static void MyNotifyCallback(BLERemoteCharacteristic *pBLERemoteCharacteristic, uint8_t *pData, size_t length, bool isNotify){
|
||||||
|
//this is called when BLE server sents data via notification
|
||||||
|
//hexDump((char*)pData, length);
|
||||||
|
if(!bleCollectPacket((char *)pData, length)){
|
||||||
|
debug("ERROR: packet could not be collected.");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void handleBLE(){
|
||||||
|
static unsigned long prev_millis_standby = 0;
|
||||||
|
|
||||||
|
prev_millis_standby = millis();
|
||||||
|
|
||||||
|
while(true){ // loop until we hit a timeout or gathered all packets
|
||||||
|
|
||||||
|
if((ble_packets_received == BLE_PACKETSRECEIVED_BEFORE_STANDBY) || (millis()>prev_millis_standby+BLE_TIMEOUT)){
|
||||||
|
if(ble_packets_received == BLE_PACKETSRECEIVED_BEFORE_STANDBY){
|
||||||
|
debug("BLE: all packets received");
|
||||||
|
bms_status=true; // BMS was connected, data up-to-date
|
||||||
|
printBasicInfo();
|
||||||
|
printCellInfo();
|
||||||
|
}else{
|
||||||
|
debug("BLE: connection timeout");
|
||||||
|
bms_status=false; // BMS not (fully) connected
|
||||||
|
}
|
||||||
|
|
||||||
|
break; // we're done with BLE, exit while loop
|
||||||
|
}
|
||||||
|
else if (doConnect){
|
||||||
|
|
||||||
|
// found the desired BLE server, now connect to it
|
||||||
|
if (connectToServer()){
|
||||||
|
ble_client_connected = true;
|
||||||
|
ble_packets_received=0;
|
||||||
|
ble_packets_requested=0;
|
||||||
|
|
||||||
|
}else{
|
||||||
|
ble_client_connected = false;
|
||||||
|
debug("BLE: failed to connect");
|
||||||
|
}
|
||||||
|
|
||||||
|
doConnect = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ble_client_connected){
|
||||||
|
debug("BLE: requesting packet 0b01");
|
||||||
|
delay(5000);
|
||||||
|
bmsRequestBasicInfo();
|
||||||
|
debug("BLE: requesting packet 0b10");
|
||||||
|
delay(5000);
|
||||||
|
bmsRequestCellInfo();
|
||||||
|
}else if ((!doConnect)&&(doScan)){
|
||||||
|
// we are not connected, so we can scan for devices
|
||||||
|
debug("BLE: not connected, starting scan");
|
||||||
|
Serial.print("BLE is not connected, starting scan");
|
||||||
|
|
||||||
|
// Disconnect client
|
||||||
|
if((pClient != nullptr)&&(pClient->isConnected())){
|
||||||
|
pClient->disconnect();
|
||||||
|
}
|
||||||
|
|
||||||
|
// stop scan (if running) and start a new one
|
||||||
|
pBLEScan->setActiveScan(true);
|
||||||
|
pBLEScan->setInterval(1 << 8); // 160 ms
|
||||||
|
pBLEScan->setWindow(1 << 7); // 80 ms
|
||||||
|
pBLEScan->start(BLE_SCAN_DURATION, MyEndOfScanCallback, false); // non-blocking, use a callback
|
||||||
|
|
||||||
|
doScan=false;
|
||||||
|
|
||||||
|
debug("BLE: scan started");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void bleGatherPackets(){
|
||||||
|
bleStart();
|
||||||
|
handleBLE();
|
||||||
|
blePause();
|
||||||
|
BLEDevice::deinit(false);
|
||||||
|
}
|
||||||
|
|
||||||
|
void bleStart(){
|
||||||
|
Serial.print("Starting BLE... ");
|
||||||
|
|
||||||
|
BLEDevice::init("");
|
||||||
|
//esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT); // release some unused memory
|
||||||
|
|
||||||
|
// Retrieve a BLE client
|
||||||
|
pClient = BLEDevice::createClient();
|
||||||
|
pClient->setClientCallbacks(new MyClientCallback());
|
||||||
|
|
||||||
|
// Retrieve a BLE scanner
|
||||||
|
pBLEScan = BLEDevice::getScan();
|
||||||
|
pBLEScan->setAdvertisedDeviceCallbacks(new MyAdvertisedDeviceCallbacks());
|
||||||
|
|
||||||
|
bleContinue();
|
||||||
|
Serial.println("done");
|
||||||
|
}
|
||||||
|
|
||||||
|
void blePause(){
|
||||||
|
// stop scanning and disconnect from all devices
|
||||||
|
doScan=false;
|
||||||
|
|
||||||
|
// Disconnect client
|
||||||
|
if((pClient != nullptr)&&(pClient->isConnected())){
|
||||||
|
pClient->disconnect();
|
||||||
|
}
|
||||||
|
|
||||||
|
delay(50);
|
||||||
|
|
||||||
|
pBLEScan->stop();
|
||||||
|
|
||||||
|
ble_client_connected=false;
|
||||||
|
doConnect=false;
|
||||||
|
ble_packets_received=0;
|
||||||
|
ble_packets_requested=0;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
void bleContinue(){
|
||||||
|
// Prepare for scanning
|
||||||
|
ble_client_connected=false;
|
||||||
|
doConnect=false;
|
||||||
|
ble_packets_received=0;
|
||||||
|
|
||||||
|
doScan=true; // start scanning for new devices
|
||||||
|
}
|
||||||
|
|
||||||
|
bool connectToServer(){
|
||||||
|
if(pRemoteDevice==nullptr){
|
||||||
|
Serial.println("Invalid remote device, can't connect");
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
// Disconnect client
|
||||||
|
if((pClient != nullptr)&&(pClient->isConnected())){
|
||||||
|
pClient->disconnect();
|
||||||
|
}
|
||||||
|
|
||||||
|
Serial.print("Forming a connection to ");
|
||||||
|
Serial.println(pRemoteDevice->getAddress().toString().c_str());
|
||||||
|
|
||||||
|
delay(100);
|
||||||
|
|
||||||
|
// Connect to the remote BLE Server.
|
||||||
|
pClient->connect(pRemoteDevice);
|
||||||
|
if(!(pClient->isConnected())){
|
||||||
|
debug(String("BLE: failed to connect"));
|
||||||
|
Serial.println("Failed to connect to server");
|
||||||
|
pClient->disconnect();
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
Serial.println(" - Connected to server");
|
||||||
|
|
||||||
|
|
||||||
|
// Get remote service
|
||||||
|
pRemoteService = pClient->getService(serviceUUID);
|
||||||
|
if (pRemoteService == nullptr){
|
||||||
|
debug(String("BLE: failed to find service UUID"));
|
||||||
|
Serial.print("Failed to find our service UUID: ");
|
||||||
|
Serial.println(serviceUUID.toString().c_str());
|
||||||
|
pClient->disconnect();
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
Serial.println(" - Found our service");
|
||||||
|
|
||||||
|
|
||||||
|
// Get BMS receive characteristic
|
||||||
|
pRemoteCharacteristic_rx = pRemoteService->getCharacteristic(charUUID_rx);
|
||||||
|
if (pRemoteCharacteristic_rx == nullptr){
|
||||||
|
debug(String("BLE: failed to find RX UUID"));
|
||||||
|
Serial.print("Failed to find rx UUID: ");
|
||||||
|
Serial.println(charUUID_rx.toString().c_str());
|
||||||
|
pClient->disconnect();
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
Serial.println(" - Found RX characteristic");
|
||||||
|
|
||||||
|
|
||||||
|
// Register callback for remote characteristic (receive channel)
|
||||||
|
if (pRemoteCharacteristic_rx->canNotify()){
|
||||||
|
pRemoteCharacteristic_rx->registerForNotify(MyNotifyCallback);
|
||||||
|
}else{
|
||||||
|
debug(String("BLE: failed to register notification of remote characteristic"));
|
||||||
|
Serial.println("Failed to register notification of remote characteristic");
|
||||||
|
pClient->disconnect();
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
Serial.println(" - Registered remote characteristic for notification");
|
||||||
|
|
||||||
|
|
||||||
|
// Get BMS transmit characteristic
|
||||||
|
pRemoteCharacteristic_tx = pRemoteService->getCharacteristic(charUUID_tx);
|
||||||
|
if (pRemoteCharacteristic_tx == nullptr){
|
||||||
|
debug(String("BLE: failed to find TX UUID"));
|
||||||
|
Serial.print("Failed to find tx UUID: ");
|
||||||
|
Serial.println(charUUID_tx.toString().c_str());
|
||||||
|
pClient->disconnect();
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
Serial.println(" - Found TX characteristic");
|
||||||
|
|
||||||
|
|
||||||
|
// Check whether tx is writeable
|
||||||
|
if (!(pRemoteCharacteristic_tx->canWriteNoResponse())){
|
||||||
|
debug(String("BLE: failed TX remote characteristic is not writable"));
|
||||||
|
Serial.println("Failed TX remote characteristic is not writable");
|
||||||
|
pClient->disconnect();
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
Serial.println(" - TX is writable");
|
||||||
|
|
||||||
|
|
||||||
|
delay(BLE_REQUEST_DELAY); // wait, otherwise writeValue doesn't work for some reason
|
||||||
|
// to do: fix this ugly hack
|
||||||
|
|
||||||
|
debug(String("BLE: connected"));
|
||||||
|
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool sendCommand(uint8_t *data, uint32_t dataLen){
|
||||||
|
if((pClient!=nullptr)&&(pClient->isConnected())){
|
||||||
|
pRemoteCharacteristic_tx->writeValue(data, dataLen, false);
|
||||||
|
return true;
|
||||||
|
}else{
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
bool isPacketValid(byte *packet) //check if packet is valid
|
||||||
|
{
|
||||||
|
if (packet == nullptr){
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
bmsPacketHeaderStruct *pHeader = (bmsPacketHeaderStruct *)packet;
|
||||||
|
int checksumPos = pHeader->dataLen + 2; // status + data len + data
|
||||||
|
|
||||||
|
int offset = 2; // header 0xDD and command type are not in data length
|
||||||
|
|
||||||
|
if (packet[0] != 0xDD){
|
||||||
|
// start bit missing
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (packet[offset + checksumPos + 2] != 0x77){
|
||||||
|
// stop bit missing
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
byte checksum = 0;
|
||||||
|
for (int i = 0; i < checksumPos; i++){
|
||||||
|
checksum += packet[offset + i];
|
||||||
|
}
|
||||||
|
checksum = ((checksum ^ 0xFF) + 1) & 0xFF;
|
||||||
|
|
||||||
|
if (checksum != packet[offset + checksumPos + 1]){
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool processBasicInfo(packBasicInfoStruct *output, byte *data, unsigned int dataLen)
|
||||||
|
{
|
||||||
|
// Expected data len
|
||||||
|
if (dataLen != 0x1B)
|
||||||
|
{
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
output->Volts = ((uint32_t)two_ints_into16(data[0], data[1])) * 10; // Resolution 10 mV -> convert to milivolts eg 4895 > 48950mV
|
||||||
|
output->Amps = ((int32_t)two_ints_into16(data[2], data[3])) * 10; // Resolution 10 mA -> convert to miliamps
|
||||||
|
|
||||||
|
output->Watts = output->Volts * output->Amps / 1000000; // W
|
||||||
|
|
||||||
|
output->CapacityRemainAh = ((uint16_t)two_ints_into16(data[4], data[5])) * 10;
|
||||||
|
output->CapacityRemainPercent = ((uint8_t)data[19]);
|
||||||
|
|
||||||
|
output->Temp1 = (((uint16_t)two_ints_into16(data[23], data[24])) - 2731);
|
||||||
|
output->Temp2 = (((uint16_t)two_ints_into16(data[25], data[26])) - 2731);
|
||||||
|
output->BalanceCodeLow = (two_ints_into16(data[12], data[13]));
|
||||||
|
output->BalanceCodeHigh = (two_ints_into16(data[14], data[15]));
|
||||||
|
output->MosfetStatus = ((byte)data[20]);
|
||||||
|
|
||||||
|
printBasicInfo();
|
||||||
|
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool processCellInfo(packCellInfoStruct *output, byte *data, unsigned int dataLen)
|
||||||
|
{
|
||||||
|
uint16_t _cellSum;
|
||||||
|
uint16_t _cellMin = 5000;
|
||||||
|
uint16_t _cellMax = 0;
|
||||||
|
uint16_t _cellAvg;
|
||||||
|
uint16_t _cellDiff;
|
||||||
|
|
||||||
|
output->NumOfCells = dataLen / 2; // data contains 2 bytes per cell
|
||||||
|
|
||||||
|
//go trough individual cells
|
||||||
|
for (byte i = 0; i < dataLen / 2; i++)
|
||||||
|
{
|
||||||
|
output->CellVolt[i] = ((uint16_t)two_ints_into16(data[i * 2], data[i * 2 + 1])); // Resolution 1 mV
|
||||||
|
_cellSum += output->CellVolt[i];
|
||||||
|
if (output->CellVolt[i] > _cellMax)
|
||||||
|
{
|
||||||
|
_cellMax = output->CellVolt[i];
|
||||||
|
}
|
||||||
|
if (output->CellVolt[i] < _cellMin)
|
||||||
|
{
|
||||||
|
_cellMin = output->CellVolt[i];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
output->CellMin = _cellMin;
|
||||||
|
output->CellMax = _cellMax;
|
||||||
|
output->CellDiff = _cellMax - _cellMin;
|
||||||
|
output->CellAvg = _cellSum / output->NumOfCells;
|
||||||
|
|
||||||
|
printCellInfo();
|
||||||
|
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool bmsProcessPacket(byte *packet)
|
||||||
|
{
|
||||||
|
bool isValid = isPacketValid(packet);
|
||||||
|
|
||||||
|
if (isValid != true)
|
||||||
|
{
|
||||||
|
Serial.println("Invalid packer received");
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
bmsPacketHeaderStruct *pHeader = (bmsPacketHeaderStruct *)packet;
|
||||||
|
byte *data = packet + sizeof(bmsPacketHeaderStruct); // TODO Fix this ugly hack
|
||||||
|
unsigned int dataLen = pHeader->dataLen;
|
||||||
|
|
||||||
|
bool result = false;
|
||||||
|
|
||||||
|
// find packet type (basic info or cell info)
|
||||||
|
switch (pHeader->type)
|
||||||
|
{
|
||||||
|
case cBasicInfo:
|
||||||
|
{
|
||||||
|
// Process basic info
|
||||||
|
result = processBasicInfo(&packBasicInfo, data, dataLen);
|
||||||
|
if(result==true){
|
||||||
|
ble_packets_received |= 0b01;
|
||||||
|
bms_last_update_time=millis();
|
||||||
|
}
|
||||||
|
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
case cCellInfo:
|
||||||
|
{
|
||||||
|
// Process cell info
|
||||||
|
result = processCellInfo(&packCellInfo, data, dataLen);
|
||||||
|
if(result==true){
|
||||||
|
ble_packets_received |= 0b10;
|
||||||
|
bms_last_update_time=millis();
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
default:
|
||||||
|
result = false;
|
||||||
|
Serial.printf("Unsupported packet type detected. Type: %d", pHeader->type);
|
||||||
|
}
|
||||||
|
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool bleCollectPacket(char *data, uint32_t dataSize) // reconstruct packet, called by notifyCallback function
|
||||||
|
{
|
||||||
|
static uint8_t packetstate = 0; //0 - empty, 1 - first half of packet received, 2- second half of packet received
|
||||||
|
|
||||||
|
// packet sizes:
|
||||||
|
// (packet ID 03) = 4 (header) + 23 + 2*N_NTCs + 2 (checksum) + 1 (stop)
|
||||||
|
// (packet ID 04) = 4 (header) + 2*NUM_CELLS + 2 (checksum) + 1 (stop)
|
||||||
|
static uint8_t packetbuff[4 + 2*25 + 2 + 1] = {0x0}; // buffer size suitable for up to 25 cells
|
||||||
|
|
||||||
|
static uint32_t totalDataSize = 0;
|
||||||
|
bool retVal = false;
|
||||||
|
hexDump(data,dataSize);
|
||||||
|
|
||||||
|
if(totalDataSize + dataSize > sizeof(packetbuff)){
|
||||||
|
Serial.printf("ERROR: datasize is overlength.");
|
||||||
|
|
||||||
|
debug(
|
||||||
|
String("ERROR: datasize is overlength. ") +
|
||||||
|
String("allocated=") +
|
||||||
|
String(sizeof(packetbuff)) +
|
||||||
|
String(", size=") +
|
||||||
|
String(totalDataSize + dataSize)
|
||||||
|
);
|
||||||
|
|
||||||
|
totalDataSize = 0;
|
||||||
|
packetstate = 0;
|
||||||
|
|
||||||
|
retVal = false;
|
||||||
|
}
|
||||||
|
else if (data[0] == 0xdd && packetstate == 0) // probably got 1st half of packet
|
||||||
|
{
|
||||||
|
Serial.println("PKT1");
|
||||||
|
packetstate = 1;
|
||||||
|
for (uint8_t i = 0; i < dataSize; i++)
|
||||||
|
{
|
||||||
|
packetbuff[i] = data[i];
|
||||||
|
}
|
||||||
|
totalDataSize = dataSize;
|
||||||
|
retVal = true;
|
||||||
|
}
|
||||||
|
else if (data[dataSize - 1] == 0x77 && packetstate == 1) //probably got 2nd half of the packet
|
||||||
|
{
|
||||||
|
Serial.println("PKT2");
|
||||||
|
packetstate = 2;
|
||||||
|
for (uint8_t i = 0; i < dataSize; i++)
|
||||||
|
{
|
||||||
|
packetbuff[i + totalDataSize] = data[i];
|
||||||
|
}
|
||||||
|
totalDataSize += dataSize;
|
||||||
|
retVal = true;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (packetstate == 2) //got full packet
|
||||||
|
{
|
||||||
|
Serial.println("PKT3");
|
||||||
|
uint8_t packet[totalDataSize];
|
||||||
|
memcpy(packet, packetbuff, totalDataSize);
|
||||||
|
|
||||||
|
bmsProcessPacket(packet); //pass pointer to retrieved packet to processing function
|
||||||
|
packetstate = 0;
|
||||||
|
totalDataSize = 0;
|
||||||
|
retVal = true;
|
||||||
|
}
|
||||||
|
return retVal;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool bmsRequestBasicInfo(){
|
||||||
|
// header status command length data checksum footer
|
||||||
|
// DD A5 03 00 FF FD 77
|
||||||
|
uint8_t data[7] = {0xdd, 0xa5, cBasicInfo, 0x0, 0xff, 0xfd, 0x77};
|
||||||
|
return sendCommand(data, sizeof(data));
|
||||||
|
}
|
||||||
|
|
||||||
|
bool bmsRequestCellInfo(){
|
||||||
|
// header status command length data checksum footer
|
||||||
|
// DD A5 04 00 FF FC 77
|
||||||
|
uint8_t data[7] = {0xdd, 0xa5, cCellInfo, 0x0, 0xff, 0xfc, 0x77};
|
||||||
|
return sendCommand(data, sizeof(data));
|
||||||
|
}
|
||||||
|
|
||||||
|
void printBasicInfo() //debug all data to uart
|
||||||
|
{
|
||||||
|
Serial.printf("Total voltage: %f\n", (float)packBasicInfo.Volts / 1000);
|
||||||
|
Serial.printf("Amps: %f\n", (float)packBasicInfo.Amps / 1000);
|
||||||
|
Serial.printf("CapacityRemainAh: %f\n", (float)packBasicInfo.CapacityRemainAh / 1000);
|
||||||
|
Serial.printf("CapacityRemainPercent: %d\n", packBasicInfo.CapacityRemainPercent);
|
||||||
|
Serial.printf("Temp1: %f\n", (float)packBasicInfo.Temp1 / 10);
|
||||||
|
Serial.printf("Temp2: %f\n", (float)packBasicInfo.Temp2 / 10);
|
||||||
|
Serial.printf("Balance Code Low: 0x%x\n", packBasicInfo.BalanceCodeLow);
|
||||||
|
Serial.printf("Balance Code High: 0x%x\n", packBasicInfo.BalanceCodeHigh);
|
||||||
|
Serial.printf("Mosfet Status: 0x%x\n", packBasicInfo.MosfetStatus);
|
||||||
|
}
|
||||||
|
|
||||||
|
void printCellInfo() //debug all data to uart
|
||||||
|
{
|
||||||
|
Serial.printf("Number of cells: %u\n", packCellInfo.NumOfCells);
|
||||||
|
for (byte i = 1; i <= packCellInfo.NumOfCells; i++)
|
||||||
|
{
|
||||||
|
Serial.printf("Cell no. %u", i);
|
||||||
|
Serial.printf(" %f\n", (float)packCellInfo.CellVolt[i - 1] / 1000);
|
||||||
|
}
|
||||||
|
Serial.printf("Max cell volt: %f\n", (float)packCellInfo.CellMax / 1000);
|
||||||
|
Serial.printf("Min cell volt: %f\n", (float)packCellInfo.CellMin / 1000);
|
||||||
|
Serial.printf("Difference cell volt: %f\n", (float)packCellInfo.CellDiff / 1000);
|
||||||
|
Serial.printf("Average cell volt: %f\n", (float)packCellInfo.CellAvg / 1000);
|
||||||
|
Serial.println();
|
||||||
|
}
|
||||||
|
|
||||||
|
void hexDump(const char *data, uint32_t dataSize) //debug function
|
||||||
|
{
|
||||||
|
Serial.println("HEX data:");
|
||||||
|
|
||||||
|
for (int i = 0; i < dataSize; i++)
|
||||||
|
{
|
||||||
|
Serial.printf("0x%x, ", data[i]);
|
||||||
|
}
|
||||||
|
Serial.println("");
|
||||||
|
}
|
||||||
|
|
||||||
|
int16_t two_ints_into16(int highbyte, int lowbyte) // turns two bytes into a single long integer
|
||||||
|
{
|
||||||
|
int16_t result = (highbyte);
|
||||||
|
result <<= 8; //Left shift 8 bits,
|
||||||
|
result = (result | lowbyte); //OR operation, merge the two
|
||||||
|
return result;
|
||||||
|
}
|
||||||
|
|||||||
@ -1,48 +0,0 @@
|
|||||||
// EasyFunctions - some handy functions that I regularly use
|
|
||||||
// by Bas Vermulst
|
|
||||||
|
|
||||||
bool InterruptPending(unsigned long *prev_millis, unsigned int period, int mode){
|
|
||||||
// mode = 0: approximate mode without catch-up
|
|
||||||
// mode = 1: exact mode without catch-up
|
|
||||||
// mode = 2: exact mode with catch-up
|
|
||||||
// note: overflow is handled correctly and exactly (tested)
|
|
||||||
|
|
||||||
if( (millis()-(*prev_millis) > period) || (millis()-(*prev_millis) < 0)){
|
|
||||||
// trigger detected
|
|
||||||
switch(mode){
|
|
||||||
default:
|
|
||||||
case 0:
|
|
||||||
// approximate mode without catch-up
|
|
||||||
*prev_millis=millis();
|
|
||||||
break;
|
|
||||||
|
|
||||||
case 1:
|
|
||||||
// exact mode without catch-up
|
|
||||||
while(millis()-(*prev_millis) > period){ // unwind
|
|
||||||
*prev_millis=*prev_millis+period;
|
|
||||||
}
|
|
||||||
break;
|
|
||||||
|
|
||||||
case 2:
|
|
||||||
// exact mode with catch-up
|
|
||||||
*prev_millis=*prev_millis+period;
|
|
||||||
break;
|
|
||||||
}
|
|
||||||
|
|
||||||
return true;
|
|
||||||
}else{
|
|
||||||
return false;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
String IPAddressString(IPAddress address){
|
|
||||||
return String(address[0]) + "." + String(address[1]) + "." + String(address[2]) + "." + String(address[3]);
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
String Float2SciStr(float number, int digits){
|
|
||||||
char char_buffer[40];
|
|
||||||
sprintf(char_buffer,"%.*E", digits, number);
|
|
||||||
return String(char_buffer);
|
|
||||||
}
|
|
||||||
Loading…
Reference in New Issue
Block a user