Freematics Forum

stanley wrote:How did you do this test? With a serial adapter? What car is connected?

Will you reply to my previous post please ? (the one that has not been approved yet by you) I really need if I have to abort my project and look for other alternatives.

UART OBDII, connected to a BMW 650GS diagnostics port as below :


in debug mode from obd.cpp
Communication is 3 wire OBDII K-Line adhering to ISO 9141-2 physical layer and protocol ISO 14230 KWP2000 (Keyword Protocol 2000).

This what I am getting in debug mode :
OK

>OK

>[4]ATZ
-OBDUART v1.0

>[59]ATE0
-OK

>[112]ATL1
-OK

>[165]010C
-SEARCHING...
UNABLE TO CONNECT

Any suggestions ?

Not a car it is a motorbike BMW 650GS right below i post a picture that shows my connections kline-Freematics-Arduino.jpg . I tried to test it with the example sketch RPM that is as follows : I added Serial.print commands to watch the flow . It seems that it stays to the [ while (!obd.init()); ]. #i...

Do we have to change parameters in the OBD library in order to communicate via K-line ? I really can not make it work.