Build A Simple Arduino robot car
You can build a simple 2‑wheel Arduino robot car with a motor driver and basic sensors in a few clear stages: gather parts, assemble chassis, wire electronics, upload code, and test. 1. Decide car type First choose what you want the car to do, as this affects sensors and code. Common beginner options: Bluetooth control from phone – needs HC‑05 module . Obstacle avoiding – needs ultrasonic sensor ( HC‑SR04 ) + small servo (optional for scanning). Line follower – needs 2–5 IR line sensors pointing to the floor. Below steps assume a basic 2WD obstacle‑avoiding car (easiest to generalize). 2. Collect hardware Typical low‑cost parts for a 2WD Arduino car: Controller : Arduino Uno (or compatible). Motor driver : L298N module or L293D motor driver shield . Chassis kit : 2 geared DC motors with brackets, 2 wheels, acrylic/metal base, 1 caster wheel . Power : 4x AA battery holder (6 V) or 2S Li‑ion/LiPo (7.4 V) for motors. Optionally separate 9 V / USB for Arduino, or ...