Some motor modules or sensor shields may use different pins (eg. Some items such as the battery enclosure, motors and servo motor may come with wires so you may not need to purchase these separately. red for voltage, black for ground, etc.). Note: Make sure you get a range of different colours for the wires (eg.
2x bare-ended wires to go from AA Battery enclosure to the motor Module (should already be included with the battery enclosure).3x wires for the servo motor with female end attaching to Sensor Shield (should already be included with the servo motor).2x bare-ended wires to go from the Motor Module to Sensor Shield.8x bare-ended wires to go from the four motors to the Motor Module.8x female-to-female wires for the Motor Module to Sensor Shield.4x female-to-female wires for Ultrasonic Sensor.1x Servo motor (any small servo motor will do but if you don’t have one you can leave it out).1x 9V battery power cable barrel jack connector.1x 4WD Robotic Car kit (4 wheels, 4 motors, chassis, AA battery enclosure, screws).
ARDUINO UNO PINOUT SOUND 4 WIRE BLUETOOTH
You could even add light sensors and LEDs to turn headlights on in low-light conditions or a Bluetooth connection to control the car through a mobile app. You can extend this project by adding more sensors such as ultrasonic sensor to the rear so that the car doesn’t reverse into objects, speed detection sensors to determine speed, line following sensors, and LED brake lights. This project involves building a 4WD car with an ultrasonic sensor that can detect nearby objects and change its direction to avoid these objects. The ultrasonic sensor will be attached to a servo motor which is constantly scanning left and right looking for objects in its way. In this tutorial you will learn to make a 4WD robotic car with built-in obstacle avoidance.
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