Here is a build I’ve started for my LS swapped 1996 Caprice. I found out that not all of the features worked over OBD2, so I decided to venture down the ESP32 rabbit hole and create my own CAN device. The prototype is bigger than I would’ve wanted, but this is my first attemptCurrently reports the following:
Tachometer
Speedometer
Oil pressure
Battery voltage
Fuel level
Coolant temp
Turn signals
High beams
MIL (check engine light)
Partial shifter position (it displays P/N if you’re in park or neutral, reverse and drive)
Parts used:
Raspberry Pi 4 running PiOS
Timer relay
Buck converter
2 ADS1115’s
2 4 channel Optocouplers
12.3 display @ 1920x720 resolution
