simple-robots/arduino/rc-car/rc-car.md

RC car

Simple car with remote control and lego chassis and motors.

Photos and video: rc-car-photos.md

Required components

• nodemcu/arduino
• breadboard
• 2x lego (or compatible) motors
• motor driver (l293d)
• 2x battery holders (and 8 batteries)
• ~30 wires
• lego parts for chassis

Total cost ~20€ .

Steps

1. Get components.
2. Download arduino IDE.
3. Connect and test a simple program with blinking light.
4. Assemble components according to the diagram below.
5. Connect to the computer and upload program.
   1. https://git.makerobots.eu/konstantin/arduino-robots/src/branch/main/src/2026-06-19_rc-car/2026-06-19_rc-car.ino .

wiring diagrams

Motors

Source: https://www.hackster.io/shubhamsantosh99/motor-control-using-nodemcu-9582d3