Differential Drive Robot RC
A differential drive robot steers by changing the speed and direction of the left and right wheels. Equal speeds move straight, different speeds curve, and opposite directions spin in place.
Working Principle
A differential drive robot steers by changing the speed and direction of the left and right wheels. Equal speeds move straight, different speeds curve, and opposite directions spin in place.
Step by Step
- Left and right wheels are driven independently.
- Same speed means straight motion.
- One wheel faster makes a curve.
- Opposite directions make a spin turn.
Working Simulation
Verified Learning Notes
Differential drive uses two independently controlled wheels. Equal speed moves straight; different speeds create turns.
Small errors in motor speed or wheel diameter make the robot drift, so students must test and trim speeds.
Both motors must share the same driver ground and battery negative with Arduino ground.
Mark a straight line and tune left/right PWM until the robot tracks straight for one meter.
Simulation Challenge
Use the working simulation above before touching wires. Change one value or command at a time, predict the result, then compare it with the diagram and the real module.
- Say what input changed.
- Predict the output.
- Run the simulator.
- Explain why the result is correct for Differential Drive Robot RC.
Authenticity Checklist
- Does the diagram match Arduino Nano pin names?
- Does every signal have a common ground reference?
- Is the module powered at its correct voltage?
- Does the explanation separate signal, data, power, and mechanical motion?