Getting either zero values or extremely high wrong values from every request

[legocrack1]

Hi, Im looking for some help about a little project in which im working on.

Im trying to get some data from my OBD2 ELM327 adapter, then the data will be uploaded to one server through HTTP request with a SIM800L gprs module, I can confirm that everything is working fine except the data that im receiving from the OBD, every time I do a request I get the message "Response not detected", this cause extremely high wrong values or 0 values some times, the ELM327 is working fine, i can get the right data with the Torque App, also i was able to try the code with an ELM327 simulator on android, the code works fine with the simulator, for some reason i only have this problem when I use the real adapter.

void loop() {

  if (myELM327.status == ELM_SUCCESS) {

    //rpm = (uint32_t)tempRPM;
    rpm = myELM327.rpm();
    consumoCombustible = myELM327.fuelRate();
    millaje = myELM327.distTravelWithMIL();
    torque = myELM327.torque();
    temperaturaTomaDeAire = myELM327.intakeAirTemp();
    temperaturaRefrigerante = myELM327.engineCoolantTemp();
    temperaturaAmbiente = myELM327.ambientAirTemp();
    temperaturaAceite = myELM327.oilTemp();
    //potencia=myELM327.rpm(); //La potencia no se puede obtener

    DEBUG_PORT.println("RPM: " + (String)rpm);
    DEBUG_PORT.println("Consumo de combustible: " + (String)consumoCombustible);
    DEBUG_PORT.println("Millaje: " + (String)millaje);
    DEBUG_PORT.println("Torque: " + (String)torque);
    DEBUG_PORT.println("TemperaturaTomaDeAire: " + (String)temperaturaTomaDeAire);
    DEBUG_PORT.println("TemperaturaRefrigerante: " + (String)temperaturaRefrigerante);
    DEBUG_PORT.println("TemperaturaAmbiente: " + (String)temperaturaAmbiente);
    DEBUG_PORT.println("TemperaturaAceite: " + (String)temperaturaAceite);
    //DEBUG_PORT.println("Potencia: "+(String)potencia);

    //Orden de las variables: RPM,Consumo de combustible,Millaje,Torque,Temperatura de la toma de aire,Temperatura del refrigerante,Temperatura ambiente,Temperatura del aceite,potencia

    //Envio con todos los datos para cuando el servidor este preparado
    //gsm_http_post("param="+(String)rpm+" "+(String)consumoCombustible+" "+(String)millaje+" "+(String)torque+" "+(String)temperaturaTomaDeAire+" "+(String)temperaturaRefrigerante+" "+(String)temperaturaAmbiente+" "+(String)temperaturaAceite+" "+(String)potencia);

    //Envio de solo dos datos para pruebas en el servidor de testing
    gsm_http_post("param=" + (String)rpm + " " + (String)consumoCombustible);

    delay(tiempoDeActualizacion);

  } else {
    DEBUG_PORT.println("El OBD2 tuvo un problema recibiendo la informacion del coche, reintentando....");
    delay(1000);
  }



}

[PowerBroker2]

Please copy and paste printouts directly into the issue instead of taking photos of your screen.

1. Run an example sketch and see if you can get RPM to work
2. Please run your code in debug mode and post all the printouts you get
3. Your sketch is written incorrectly, you need to follow the required format for each individual value (see below):

ELMduino/examples/ESP32_Bluetooth_Serial/ESP32_Bluetooth_Serial.ino

Lines 45 to 53 in ad580d9

	float tempRPM = myELM327.rpm();
	if (myELM327.status == ELM_SUCCESS)
	{
	rpm = (uint32_t)tempRPM;
	Serial.print("RPM: "); Serial.println(rpm);
	}
	else
	myELM327.printError();

[legocrack1]

Hi, thank you for the quick answer, I used your ESP32 Bluetooth example and still not working, I got this serial output in a loop:

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:10124
load:0x40080400,len:5856
entry 0x400806a8
Clearing input serial buffer
Sending the following command/query: AT D
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT Z
	Received char: E
	Received char: L
	Received char: M
	Received char: 3
	Received char: 2
	Received char: 7
	Received char:  
	Received char: v
	Received char: 1
	Received char: .
	Received char: 5
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: ELM327v15
Clearing input serial buffer
Sending the following command/query: AT E0
	Received char: A
	Received char: T
	Received char:  
	Received char: E
	Received char: 0
	Received char: \r
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: ATE0OK
Clearing input serial buffer
Sending the following command/query: AT S0
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT AL
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT TP A0
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Connected to ELM327
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 1
	Received char: 0
	Received char: 0
	Received char: 7
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C10070000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 7
	responseByte_3: 16
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
RPM: 67223552
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: N
	Received char: O
	Received char:  
	Received char: D
	Received char: A
	Received char: T
	Received char: A
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: NODATA
ELM responded with errror "NO DATA"
Expected response header: 410C
Response not detected
Received: NODATA
ERROR: ELM_NO_DATA
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: F
	Received char: D
	Received char: 1
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0FD10000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 209
	responseByte_3: 15
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
RPM: 66338816
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: F
	Received char: C
	Received char: 7
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found

Also i have corrected my code like you said and your examples, and im still getting the same output:

Clearing input serial buffer
Sending the following command/query: AT D
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT Z
	Received char: E
	Received char: L
	Received char: M
	Received char: 3
	Received char: 2
	Received char: 7
	Received char:  
	Received char: v
	Received char: 1
	Received char: .
	Received char: 5
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: ELM327v15
Clearing input serial buffer
Sending the following command/query: AT E0
	Received char: A
	Received char: T
	Received char:  
	Received char: E
	Received char: 0
	Received char: \r
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: ATE0OK
Clearing input serial buffer
Sending the following command/query: AT S0
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT AL
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT TP A0
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
CONECTADO AL OBD2 ELM327
exito!
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: F
	Received char: D
	Received char: B
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0FDB0000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 219
	responseByte_3: 15
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
Service: 1
PID: 94
Normal length query detected
Query string: 015E
Clearing input serial buffer
Sending the following command/query: 015E
	Received char: N
	Received char: O
	Received char:  
	Received char: D
	Received char: A
	Received char: T
	Received char: A
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: NODATA
ELM responded with errror "NO DATA"
Expected response header: 415E
Response not detected
Service: 1
PID: 33
Normal length query detected
Query string: 0121
Clearing input serial buffer
Sending the following command/query: 0121
	Received char: 4
	Received char: 1
	Received char: 2
	Received char: 1
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 412100000000
Expected response header: 4121
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 0
	responseByte_3: 0
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
Service: 1
PID: 98
Normal length query detected
Query string: 0162
Clearing input serial buffer
Sending the following command/query: 0162
	Received char: N
	Received char: O
	Received char:  
	Received char: D
	Received char: A
	Received char: T
	Received char: A
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: NODATA
ELM responded with errror "NO DATA"
Expected response header: 4162
Response not detected
Service: 1
PID: 15
Normal length query detected
Query string: 010F
Clearing input serial buffer
Sending the following command/query: 010F
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: F
	Received char: 4
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410F40000000
Expected response header: 410F
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 0
	responseByte_3: 64
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
Service: 1
PID: 5
Normal length query detected
Query string: 0105
Clearing input serial buffer
Sending the following command/query: 0105
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: 5
	Received char: 5
	Received char: 8
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410558000000
Expected response header: 4105
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 0
	responseByte_3: 88
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
Service: 1
PID: 70
Normal length query detected
Query string: 0146
Clearing input serial buffer
Sending the following command/query: 0146
	Received char: 4
	Received char: 1
	Received char: 4
	Received char: 6
	Received char: 3
	Received char: D
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 41463D000000
Expected response header: 4146
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 0
	responseByte_3: 61
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
Service: 1
PID: 92
Normal length query detected
Query string: 015C
Clearing input serial buffer
Sending the following command/query: 015C
	Received char: N
	Received char: O
	Received char:  
	Received char: D
	Received char: A
	Received char: T
	Received char: A
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: NODATA
ELM responded with errror "NO DATA"
Expected response header: 415C
Response not detected
RPM: 66502656
Consumo de combustible: 0
Millaje: 0
Torque: 4294967171
TemperaturaTomaDeAire: 1073741760
TemperaturaRefrigerante: 1476395008
TemperaturaAmbiente: 1023410112
TemperaturaAceite: 4294967256

[PowerBroker2]

Thanks! Much better.

It seems you're having the same issue as this person, where you're getting data, just that your ELM327 is adding extra chars in the response and is throwing off my parsing algorithm.

I do have a possible fix I suggested here, but OP hasn't responded on whether or not it worked. In that case, could you do the following:

1. Open ELMduino.cpp in an IDE or text editor of your choice
2. Replace the contents of the rpm() function in that cpp file with this:

 	if (queryPID(SERVICE_01, ENGINE_RPM)) 
 		return ((findResponse() >> ((payBytes - 2) * 4)) / 4.0); 
  
 	return ELM_GENERAL_ERROR; 

3. Test the example sketch and see if it works
4. Post the debug prints and post here

[legocrack1]

Hi, I tried do modify the library like you said but looks like "payBytes" is a local variable of other scope or something like that, I have a compile error:

C:\Users\Misael\Documents\Arduino\libraries\ELMDuino\src\ELMduino.cpp:767:33: error: 'payBytes' was not declared in this scope

    return ((findResponse() >> ((payBytes - 2) * 4)) / 4.0); 

[PowerBroker2]

Dang, you're right - it's a local variable. Here is where it's defined:

ELMduino/src/ELMduino.cpp

Line 2507 in ad580d9

uint8_t payBytes = 0;

Could you make it a public class global variable and try again?

[legocrack1]

Ok, I tried but im still getting weird values

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:10124
load:0x40080400,len:5856
entry 0x400806a8
Clearing input serial buffer
Sending the following command/query: AT D
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT Z
	Received char: E
	Received char: L
	Received char: M
	Received char: 3
	Received char: 2
	Received char: 7
	Received char:  
	Received char: v
	Received char: 1
	Received char: .
	Received char: 5
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: ELM327v15
Clearing input serial buffer
Sending the following command/query: AT E0
	Received char: A
	Received char: T
	Received char:  
	Received char: E
	Received char: 0
	Received char: \r
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: ATE0OK
Clearing input serial buffer
Sending the following command/query: AT S0
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT AL
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT TP A0
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Connected to ELM327
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: F
	Received char: C
	Received char: E
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0FCE0000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 206
	responseByte_3: 15
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
RPM: 66289664
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: F
	Received char: B
	Received char: E
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0FBE0000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 190
	responseByte_3: 15
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
RPM: 66027520
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: F
	Received char: A
	Received char: D
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0FAD0000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 173
	responseByte_3: 15
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
RPM: 65748992

[PowerBroker2]

Are you sure you replaced the right function with the correct contents? Can you put some extra debug statements inside to see what's going on?

My real question is why the f- is your ELM327 is adding erroneous trailing zeros to each response...

[legocrack1]

Haha, I was about to edit my answer, you are right, I did not edit the rpm function with the new code. Thank you so much, now everything looks fine, the RPM value is right, looks like this is the correction we been looking for

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:10124
load:0x40080400,len:5856
entry 0x400806a8
Clearing input serial buffer
Sending the following command/query: AT D
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: D
	Received char: 3
	Received char: F
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0D3F0000
Clearing input serial buffer
Sending the following command/query: AT Z
	Received char: E
	Received char: L
	Received char: M
	Received char: 3
	Received char: 2
	Received char: 7
	Received char:  
	Received char: v
	Received char: 1
	Received char: .
	Received char: 5
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: ELM327v15
Clearing input serial buffer
Sending the following command/query: AT E0
	Received char: A
	Received char: T
	Received char:  
	Received char: E
	Received char: 0
	Received char: \r
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: ATE0OK
Clearing input serial buffer
Sending the following command/query: AT S0
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT AL
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT TP A0
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Connected to ELM327
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: D
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0D410000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 65
	responseByte_3: 13
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
RPM: 3
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: D
	Received char: 4
	Received char: 8
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0D480000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 72
	responseByte_3: 13
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
RPM: 3
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: D
	Received char: 5
	Received char: F
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0D5F0000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 95
	responseByte_3: 13
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
RPM: 3

Now only have to correct the function of the other values, if you can deploy a new version of the library it will be very usefull

[PowerBroker2]

Wait, you sure an RPM value of 3 is right or am I reading your debug statements wrong?

if you can deploy a new version of the library it will be very usefull

I will once I verify beyond all doubt that this method works

[legocrack1]

Oh excuse me, you're right, I rush, initially I didn't think about it well and the value of three seemed to me a correct value since the car is not moving but you're right, 3 is too low a value

[PowerBroker2]

I had a small mistake, try this:

 	if (queryPID(SERVICE_01, ENGINE_RPM)) 
 		return ((findResponse() >> ((payBytes - 4) * 4)) / 4.0); 
  
 	return ELM_GENERAL_ERROR; 

[legocrack1]

It looks like everything is working now, Im reading consistent values and most important, the RPM corresponds with the RPM of the Torque App

Clearing input serial buffer
Sending the following command/query: AT D
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: D
	Received char: 7
	Received char: B
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0D7B
Clearing input serial buffer
Sending the following command/query: AT Z
	Received char: E
	Received char: L
	Received char: M
	Received char: 3
	Received char: 2
	Received char: 7
	Received char:  
	Received char: v
	Received char: 1
	Received char: .
	Received char: 5
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: ELM327v15
Clearing input serial buffer
Sending the following command/query: AT E0
	Received char: A
	Received char: T
	Received char:  
	Received char: E
	Received char: 0
	Received char: \r
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: ATE0OK
Clearing input serial buffer
Sending the following command/query: AT S0
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT AL
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Clearing input serial buffer
Sending the following command/query: AT TP A0
	Received char: O
	Received char: K
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: OK
Connected to ELM327
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: D
	Received char: 7
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0D700000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 112
	responseByte_3: 13
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
RPM: 860
Service: 1
PID: 12
Normal length query detected
Query string: 010C
Clearing input serial buffer
Sending the following command/query: 010C
	Received char: 4
	Received char: 1
	Received char: 0
	Received char: C
	Received char: 0
	Received char: D
	Received char: 6
	Received char: 3
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: 0
	Received char: \r
	Received char: \r
	Received char: >
Delimiter found
All chars received: 410C0D630000
Expected response header: 410C
Single response detected
64-bit response: 
	responseByte_0: 0
	responseByte_1: 0
	responseByte_2: 99
	responseByte_3: 13
	responseByte_4: 0
	responseByte_5: 0
	responseByte_6: 0
	responseByte_7: 0
RPM: 856

I really thank you, it looks like finally this is the solution

[PowerBroker2]

Ok, I'll update the lib and tag out a new version today