A clean Arduino car BOM uses fewer modules, better motor control and enough power margin to avoid random resets.
Most Arduino car problems are power problems. The board resets when motors start, the driver overheats or the battery cannot supply current. A good parts list separates motor power from logic power and uses a modern motor driver.
Start with a simple car that drives straight, turns predictably and reads one distance sensor. Add line following or Bluetooth only after the base is reliable.
Main controller for beginner firmware
Base plate, TT motors, wheels and caster
Efficient dual motor driver
Motor power with enough current
Stable logic power
Obstacle sensing
Add a QTR sensor array and tune PID.
Add BLE or HC-05 control after basic driving works.
Treat the generated output as a prototype plan, not a certified product. Body-adjacent, high-voltage, optical-energy and mobility builds need qualified review before real-world use.
It works, but wastes power and runs hot. TB6612FNG is usually better for small cars.
The motors are pulling down the supply. Use separate motor power and a buck converter for logic.
Not for the first car. Add encoders when you care about distance accuracy.
Start with this prompt prefilled, then let RoboHub generate the live parts list, wiring plan, CAD and firmware.
Generate build