Using the V2 adapter with esp8266

Inquiry and support for Arduino OBD-II Adapter
pkn
Posts: 2
Joined: Mon Dec 19, 2016 4:43 am

Using the V2 adapter with esp8266

Postby pkn » Mon Dec 19, 2016 4:57 am

Hi,
I've recently ordered and received the OBD-II UART adapter V2 and wanted to try it out today.
Unfortunately I haven't been able to get it to work with my wemos D1 mini pro (esp8266) board.

When trying the basic RPM example, the board just gets stuck in some kind of boot loop (soft WDT reset, rst cause: 2, boot mode: 3 6).
The reboot seems to be caused by .begin() or .init(), but I'm not too sure about that. Code compiles without errors, of course.

I've tried everything I could think of but now I'm out of ideas.
Do you have any advice for me? What could I possibly do wrong? Does the adapter (or the library) for some reason not work with an esp8266 board?


Regards

stanley
Site Admin
Posts: 519
Joined: Sat Mar 01, 2014 3:15 am

Re: Using the V2 adapter with esp8266

Postby stanley » Tue Dec 20, 2016 8:55 am

Did you disconnect USB cable from esp8266? It has only one usable hardware serial just like UNO.

pkn
Posts: 2
Joined: Mon Dec 19, 2016 4:43 am

Re: Using the V2 adapter with esp8266

Postby pkn » Tue Dec 20, 2016 11:26 pm

Yes, I've tried it with the USB cable unplugged, but that doesn't help either. It still reboots continuously.

stanley
Site Admin
Posts: 519
Joined: Sat Mar 01, 2014 3:15 am

Re: Using the V2 adapter with esp8266

Postby stanley » Sun Jan 08, 2017 11:22 am

Did your esp8266 board receive anything from serial?


Return to “OBD-II Adapter for Arduino”

Who is online

Users browsing this forum: No registered users and 1 guest