JakubJD commented 4 years ago

Hey,

I would like to ask you for the help.

I try to communicate with OBD Adapter OBD Link LX101 with Windows 10 and Python 3.7.4. I wrote very simple code, where I test the communication and data receiving. But few commands are not supported, but I can not imagine why. Can you give me the advice? Thanks

My code is:

import obd import time connection = obd.Async("COM4",baudrate=38400, fast=False)

a callback that prints every new value to the console

RPM

def new_rpm(r): print("RPM: ",r.value) print("\t")

SPEED

def new_speed(r): print("SPEED: ",r.value) print("\t")

COOLANT TEMPERATURE

def new_coolant_temperature(r): print("Coolant temperature: ",r.value) print("\t")

THROTTLE POSITION

def new_throttle_position(r): print("THROTTLE POSITION: ",r.value) print("\t")

FUEL_LEVEL

def new_fuel_level(r): print("Fuel level: ",r.value) print("\t")

cmd = obd.commands.FUEL_PRESSURE r = connection.query(cmd, force=True) print("Fuel level: ",r.value)

connection.watch(obd.commands.RPM, callback=new_rpm) connection.watch(obd.commands.SPEED, callback=new_speed) connection.watch(obd.commands.COOLANT_TEMP, callback=new_coolant_temperature) connection.watch(obd.commands.THROTTLE_POS, callback=new_throttle_position) connection.watch(obd.commands.FUEL_PRESSURE, callback=new_fuel_level) connection.start()

the callback will now be fired upon receipt of new values

time.sleep(600) connection.stop()

Output:

Fuel level: None [obd.obd] 'b'0111': Throttle Position' is not supported [obd.obd] 'b'010A': Fuel Pressure' is not supported RPM: 0.0 revolutions_per_minute

SPEED: 0.0 kph

Coolant temperature: 68 degC

alistair23 commented 4 years ago

Not every car supports all the queries. Are you sure your car support them?

JakubJD commented 4 years ago

Hi, thanks for your answer. Yes, may be, you are right. I have to check it.

Oswaldoo97 commented 4 years ago

As alistair23 says, if you get "x is not suported", your car doesn't support the commands. I got the same issue with some parameters, and I tried with a different car and I got all the parameters I asked.