Rev 3 – Raspberry Pi head unit

Rev 2 – Combined V/A gauge + RPi video display


Rev 1 – Analog gauges
Back lights!

| Reuse of existing lamps | GEN | Charger interlock enabled |
| OIL | Motor overheat | |
| Additional instrumentation | READY | Indicating main power on |
| AMPS | 0-1000A range output from shunt on controller panel | |
| VOLTS | Traction Pack Volts (80-180v range) | |
| AUX | Volts (6-16v range) – reading aux battery | |
| Nice to haves | VAC | Vacuum (30-0) – Reading brake booster output |
| SOC | State of charge – possible re-use of the fuel gauge via conversion circuit | |
| RPM | Maybe a “Monster Tach” with the shift light set at 4000 rpm 🙂 |
http://www.ecosmotors.com/parts.html have a very nice digital speedo that is drop in replacement for the VW. They list upto ’67, but it should be adaptable. I’m considering my own project to make a similar panel, but replace all the controls.
Removed dash, scrubbed all the gauges. Decided to use the radio slot for the 3 gauges: AMPS, VOLTS and AUX. Need to enlarge top and bottom of the gauge to make it fit.
Pre conversion

Close up of warning lamps
