gasparian/obd_elm327_vehicle_speed

C script for talking to OBD-II port via elm327 controller on Linux

obd_elm327_vehicle_speed's Issues

Error message: Elm bad Response! Need to verify function "answer_check ---> '410D'"

How you doing!
I'm trying to set up my obd interface which is actually not the elm327 but instead the OBSLink SX. I read the manual and it said that it's compatible with all elm327 AT, ST, and OBD commands. I configured the serial communication parameters and was able to run the code all the way to the if ifelse statements within the main function on line 58, where it called the answer_check(answer, "410D", 4). I turned on some debugging comments and this is what I got when ran in the terminal:

+----------------------------------------------------------------------+
| Serial Port Read/Write |
+----------------------------------------------------------------------+

/dev/ttyUSB0 Opened Successfully!

Parameter set:
BaudRate = 115200
StopBits = 1
Parity = none
VMIN = 18
VTIME = 2

Inside elm read:

Kts0
OK

In comparison function: 2; 0
Answer:
'OK'
'OK' (2)
'OK' (2)

Inside elm read:

4OPPED
STOPPED

In comparison function: 4; 31
Answer:
'STOPPED'
'STOP' (4)
'410D' (4)

I can't pin point the issue as I'm not an experienced enough programmer. My assumption is that elm_talk function asked for the vehicle speed it returned the string "STOPPED" and when checked with "410D" it didn't match up. So if you could inform me on what is going on, I would really appreciate it. Now I was stopped in the car haha but I was waiting the terminal to print out "ready to talk" then was gonna figure it out from there. I'm just trying to figure out the protocols for this obd2 interface and what 410D is.