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added some querys to BMS

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sascha-hemi
2024-05-12 00:58:42 +02:00
parent c0f2cedf3a
commit bcd52b0082
1 changed files with 91 additions and 23 deletions
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114
arduino/src/main.cpp
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@@ -2,8 +2,11 @@
#define RXD2 16
#define TXD2 17
#define TIMEOUT 250
#define MAX_TRIES 20
#define TIMEOUT 200
#define MAX_TRIES 25
String serialNumber;
int16_t current;
uint16_t calculateChecksum(const uint8_t* data, size_t length) {
uint16_t sum = 0;
@@ -20,7 +23,7 @@ bool verifyChecksum(const uint8_t* data, size_t length) {
return false;
}
// Empfangene Checksumme aus den letzten zwei Bytes im Little-Endian Format
uint16_t received_checksum = (data[length-1] << 8) | data[length-2];
uint16_t received_checksum = (data[length-2] << 8) | data[length-1];
// Berechnet die Checksumme beginnend beim dritten Byte bis zum vorletzten Byte
uint16_t sum = 0;
@@ -30,24 +33,17 @@ bool verifyChecksum(const uint8_t* data, size_t length) {
uint16_t calculated_checksum = sum ^ 0xFFFF;
calculated_checksum = (calculated_checksum & 0xFF) << 8 | (calculated_checksum >> 8); // Byte-Swap
// Debug-Ausgaben
Serial.print("Received Checksum: ");
Serial.println(received_checksum, HEX);
Serial.print("Calculated Checksum: ");
Serial.println(calculated_checksum, HEX);
// // Debug-Ausgaben
// Serial.print("Received Checksum: ");
// Serial.println(received_checksum, HEX);
// Serial.print("Calculated Checksum: ");
// Serial.println(calculated_checksum, HEX);
// Vergleicht die berechnete Checksumme mit der empfangenen
return received_checksum == calculated_checksum;
}
void processBmsResponse(const uint8_t* data, size_t length, uint8_t expectedCmd) {
for (int i = 0; i < length; i++) {
Serial.print(data[i], HEX); // Ausgeben jedes Bytes in Hexadezimal
Serial.print(" "); // Füge ein Leerzeichen zwischen den Hex-Werten ein
}
Serial.println(); // Füge eine neue Zeile am Ende hinzu
if (!verifyChecksum(data, length)) {
Serial.println("Checksumme ungültig!");
return;
@@ -61,12 +57,73 @@ void processBmsResponse(const uint8_t* data, size_t length, uint8_t expectedCmd)
return;
}
Serial.println("Gültige Daten empfangen:");
for (int i = 7; i < length - 2; i += 2) {
uint16_t voltage = (data[i] << 8) | data[i+1];
Serial.print("Zellenspannung: ");
Serial.print(voltage);
Serial.println(" mV");
// Serial.println("Gültige Daten empfangen:");
switch(data[5]){
case 0x40: // Fall für Zellenspannungen
// Serial.println("Verarbeitung der Zellenspannungen:");
for (int i = 6; i < length - 2; i += 2) {
uint16_t voltage = (data[i+1] << 8) | data[i]; // Little-Endian Verarbeitung
Serial.print("Zellenspannung: ");
Serial.print(voltage);
Serial.println(" mV");
}
break;
case 0x18: // Factory capacity
Serial.print("Factory Capacity (mAh): ");
Serial.println((data[7] << 8) | data[6]);
break;
case 0x17: // Firmware version
Serial.print("Firmware Version: ");
Serial.println((data[7] << 8) | data[6], HEX); // Datenindex 6 und 7 nach '55 AA'
break;
case 0x19: // Actual capacity
Serial.print("Actual Capacity (mAh): ");
Serial.println((data[7] << 8) | data[6]);
break;
case 0x30: // Status
Serial.println("Status:");
Serial.println((data[7] << 8) | data[6], BIN); // Anzeige als Binär
break;
case 0x31: // Remaining capacity mAh
Serial.print("Remaining Capacity (mAh): ");
Serial.println((data[7] << 8) | data[6]);
break;
case 0x32: // Remaining capacity %
Serial.print("Remaining Capacity (%): ");
Serial.println((data[7] << 8) | data[6]);
break;
case 0x33: // Current
Serial.print("Current (x10 mA): ");
current = (data[7] << 8) | data[6];
if (current > 32767) current -= 65536; // Umrechnung für 16-bit signed
Serial.println(current);
break;
case 0x34: // Voltage
Serial.print("Voltage (mV): ");
Serial.println(((data[7] << 8) | data[6])*10);
break;
case 0x3B: // Health
Serial.print("Health (%): ");
Serial.println((data[7] << 8) | data[6]);
break;
case 0x10: // Fall für Seriennummer
// Serial.println("Verarbeitung der Seriennummer:");
for (int i = 6; i < length - 2; i++) {
serialNumber += (char)data[i]; // Konvertiere jedes Byte zu einem Zeichen und füge es zur Seriennummer hinzu
}
Serial.print("Seriennummer: ");
Serial.println(serialNumber);
break;
}
}
@@ -82,7 +139,7 @@ bool sendBmsCommand(uint8_t bLen, uint8_t bAddr, uint8_t bCmd, uint8_t bArg, uin
unsigned long startTime = millis();
while (Serial2.available() == 0) {
if (millis() - startTime >= TIMEOUT) {
Serial.println("Timeout erreicht, sende erneut...");
// Serial.println("Timeout erreicht, sende erneut...");
break;
}
}
@@ -105,7 +162,18 @@ bool sendBmsCommand(uint8_t bLen, uint8_t bAddr, uint8_t bCmd, uint8_t bArg, uin
void setup() {
Serial.begin(115200);
Serial2.begin(115200, SERIAL_8N1, RXD2, TXD2);
sendBmsCommand(0x03, 0x22, 0x01, 0x40, 0x14); // bArg wird hier als Hex-Wert 0x40 übergeben, erwartet als Antwort auch 0x40
sendBmsCommand(0x03, 0x22, 0x01, 0x40, 0x14); // Abfrage der Zellspannungen
sendBmsCommand(0x03, 0x22, 0x01, 0x10, 0x0E); // Abfrage der Seriennummer
sendBmsCommand(0x03, 0x22, 0x01, 0x17, 0x02); // Abfrage der FirmwareVersion
sendBmsCommand(0x03, 0x22, 0x01, 0x18, 0x02); // Abfrage der FactoryCapacity
sendBmsCommand(0x03, 0x22, 0x01, 0x19, 0x02); // Abfrage der ActualCapacity
sendBmsCommand(0x03, 0x22, 0x01, 0x31, 0x02); // Abfrage der RemainingCapacity in mAh
sendBmsCommand(0x03, 0x22, 0x01, 0x32, 0x02); // Abfrage der RemainingCapacity in %
sendBmsCommand(0x03, 0x22, 0x01, 0x33, 0x02); // Abfrage des Current
sendBmsCommand(0x03, 0x22, 0x01, 0x34, 0x02); // Abfrage der Voltage
sendBmsCommand(0x03, 0x22, 0x01, 0x3B, 0x02); // Abfrage des Health
sendBmsCommand(0x03, 0x22, 0x01, 0x30, 0x02); // Abfrage des Status
}
void loop() {