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Electrical Wiring

Complete electrical wiring diagram for the kart, covering the shutdown circuit, power distribution at multiple voltages, and signal routing between all subsystems.

Wire Color Code

All wiring on the kart follows this color convention:

Color Meaning Hex
Black GND (common ground, all systems) #333
Red 12 V power #d32f2f
Orange 5 V power #e65100
Yellow 3.3 V power #f9a825
White / Gray Unmarked — no voltage meaning #bbb

Signal wires (CAN, I2C, analog, PWM) use white/gray unless a specific convention applies to that bus.

Global Wiring Diagram

Hand-crafted SVG. Real Festo product photos for the pneumatic brake chain (VPPM, EBS, ADN actuator); inline schematic-style symbols for the rest (battery cell stack, BLDC motor with U/V/W terminals, mushroom kill switches, op-amp triangle, SDC relay coil + NO contacts). Open full-size in a new tab ↗{ target="_blank" }

Tip: All switches in the shutdown chain are in series — opening any one cuts power to the relay coil, which disables the motor controller.