OBDuino working with ELM327 (pix + movie)
 

Yesterday I made my first real test with the OBDuino connected to my car, and it worked :)

Here is a picture at idle, note that the display is in L/h because speed is 0.
http://opengauge.org/~obduino/hardware/OBDuino_idle.jpg

I also made a small movie, but in my code I had a problem with a value being signed so sometimes the fuel display goes negative (I corrected it in the trunk code).

http://video.google.fr/videoplay?doc...96121009912634

Unfortunatly it seems google resized the movie to 320x240 :( and I was taking it with my digital camera while driving so quality is not very good, but at least it shows you the thing. I display fuel consumption, speed, RPM, load.

Nice! I love the low quality background music.

Thanks, and sorry for the music, this was the radio but the volume was low, I didn't know we would hear it, I should remove it from the video :)

Yay keep it up!

I would make one of these with a larger display, to be able to look at six or eight gauges at a time. That would be sweet. I think you guys are onto something here. Good luck and keep us posted.

I added menu configuration, you can now configure LCD contrast and if you want metric unit or imperial.

I also added "virtual" screens, there is 3 screens, each displaying 4 infos, you rotate through them by pressing a button. It makes 12 infos available quickly. I will add them in the configuration too.

Buttons act like this:
BTW here is my ELM interface:
http://opengauge.org/~obduino/hardwa...face_front.jpg

random pictures:
http://opengauge.org/~obduino/hardware/idle_si.jpg
http://opengauge.org/~obduino/hardware/idle_imp.jpg
http://opengauge.org/~obduino/hardware/in_car.jpg
http://opengauge.org/~obduino/hardware/in_car_night.jpg
http://opengauge.org/~obduino/hardware/contrast.jpg
http://opengauge.org/~obduino/hardware/unit.jpg

Hi,

Check tihis post i did, your wish is on the way :)

http://ecomodder.com/forum/62481-post217.html

hello guys....

i'm looking for a display to show how much gasoline my car is using...

i built the elm 327 scanner last week and i think that this will work perfectly....

so, where i can get the projects to build a display like this?

thanks.

marcelo.

If you have a serial ELM327 interface, I think you just have to plug it to the serial plug of an Arduino clone. I don't know if you need a straight cable or a cross one however!

If you have a USB version you will have to wire pin 16 of the ELM327 to pin 1 (TX) of the Arduino and pin 17 of the ELM327 to pin 0 (RX) of the Arduino.

Project is described here
OBDuino - opengauge - OBDuino Description - Google Code