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Very nice!
I have been working on a very similar device but had no need for CAN or OBD.
Mine is for logging & displaying data in a racecar.
It also uses an Arduino Mega and a 2.8" LCD.
The basic requirements for mine are:
Log serial data (RS-232) from an Innovate system
LC-1 AFR and TC-4 4 channel EGT/CHT
Log Engine RPM from coil (old style tach signal)
Log various analogs
throttle position
oil temp
oil press
batt voltage
Control a small number of loads
Shift light
Alarm light
Display readable data to driver (oil temp/press, AFR, EGT) at low rate.
Trigger alarms and alert driver via Alarm light.
I have all of that with code working and logging data to a SDcard.
My latest upgrade was to be a 2.8 TFT Touchscreen, but I am having trouble getting it to work.
I also intend to experiment with a carbon fiber housing for my display when I am done.
If we agree on a common platform, we could coordiante some.
I chose the sparkfun arduino shields because I drive by their warehouse every day.
Do you have a link to the display you are using in the examples above?
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