Keyestudio 4WD Manual page 3

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Project 5: Temperature Measurement ......................................................... 113
Project 6: Geomagnetic Sensor ..................................................................... 127
Project 7: Accelerometer ................................................................................. 142
Project 8: Light Detection ................................................................................ 157
Project 9: Speaker .............................................................................................. 163
Project 10: Touch-sensitive Logo .................................................................. 169
Project 11: Microphone ................................................................................... 175
Project 12: Bluetooth Wireless Communication ....................................... 187
Project 13：Colorful Lights ............................................................................. 208
Project 14：WS2812 RGB LEDs ..................................................................... 215
Project 15：Servo .............................................................................................. 238
Project 16：Motor ............................................................................................. 247
Project 17：Line Tracking Sensor .................................................................. 260
17.1: Detect Line Tracking Sensor ......................................................... 260
17.2: Line Tracking Smart Car ................................................................ 278
Project 18: Ultrasonic Follow Smart Car ..................................................... 288
18.1: Ultrasonic Ranging ......................................................................... 288
18.2: Ultrasonic Avoidance Car .............................................................. 297
18.3: Ultrasonic Follow Smart Car ........................................................ 313
Project 19：IR Remote Control ..................................................................... 322
19.1：Decode IR Remote Control ......................................................... 322
19.2：IR Remote Control ......................................................................... 332
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