sparkfun / obd-ii_uart Goto Github PK

I don't know if this product gets activelly supported, I have been using this product with cars and truck, works just fine, but can not read from a SAE - 1939 truck.

Hi!

I made a library to make the comunication and the development of software for the ECU easier
Keyword Protocol 2000
I think that the original tutorial has been created by toni_k but i don't know his github name
You may consider to add this to the tutorial
I also made a python script that emulates an ECU and it is very useful for the development, somehow similar to the ECUsim 2000 you pubblish only limited to the iso14230 but free

Several customer have reported that the Serial.flush() function no longer clears the input and output buffers; it only clears the output buffer.

The firmware needs to be updated for this change:
https://github.com/sparkfun/OBD-II_UART/blob/master/Firmware/obdIIUartQuickstart.ino#L55
https://github.com/sparkfun/OBD-II_UART/blob/master/Firmware/obdIIUartQuickstart.ino#L60
https://github.com/sparkfun/OBD-II_UART/blob/master/Firmware/obdIIUartQuickstart.ino#L83

A common recomendation from the Arduino forum:

while(Serial.available() > 0) {
  char dump_buf = Serial.read();
}

The schematic says it uses the mcp2551 for can bus. Is there a way I can directly communicate with the can-bus without having to go through obd2 interface?