Keyestudio Micro:bit Mini Smart Robot Car Manual page 3

8.4 Line Tracking ..................................................................................................................................................................... 30
8.4.1 Test the tracking sensor ...................................................................................................................................... 30
8.4.2 Line Tracking Car .................................................................................................................................................. 38
8.5 Ultrasonic Avoiding Obstacles ........................................................................................................................................ 43
8.5.1 Ultrasonic Ranging ................................................................................................................................................ 43
8.5.2 Ultrasonic Obstacle Avoiding Car ....................................................................................................................... 50
8.6 Infrared Avoiding Obstacles ........................................................................................................................................... 55
8.6.1 Infrared Detection ................................................................................................................................................ 55
8.6.2 Infrared Obstacle Avoiding Car .......................................................................................................................... 63
8.7 Ultrasonic and Infrared Avoiding Obstacles ................................................................................................................. 67
8.8 Bluetooth Controlled Car ................................................................................................................................................. 72
8.8.1 Bluetooth Test ....................................................................................................................................................... 72
8.8.2 Bluetooth Controlled Car ..................................................................................................................................... 90
8.8.3 Wireless Gamepad Control .................................................................................................................................. 95
9. Related Resources Link ....................................................................................................................................................... 114