Keyestudio Micro:bit Mini Smart Robot Car V2 Instructions Manual page 108

forward, 18 RGB LEDs turn on blue light; robot moves backward, 18 RGB LEDs turn on red light; turn left, 18 RGB
LEDs turn on purple light; turn right, 18 RGB LEDs turn on yellow light.
Measure the distance between the robot and obstacles using an ultrasonic sensor.
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When the measured distance is greater than 10cm, make use of infrared sensors to detect obstacle at both
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sides:
If no detecting obstacles at both sides, robot moves forward; if obstacles are at right side but not left side, robots
turn left; if obstacles are at left side but not right side, robots turn right; if both sides have obstacles, robot will go
back for 0.1 second then turn left.
When the measured distance is less than or equal to 10cm, make use of infrared sensors to detect obstacle
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at both sides:
If no detecting obstacles at both sides, robot turns left; if obstacles are at right side but not left side, robot turns
left; if obstacles are at left side but not right side, robot turns right; if both sides have obstacles, robot will go back
for 0.1 second then turn left.
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