The program starts by setting the radio group displayed by the robot micro:bit. This is the same group that the microcode program will use to communicate with the robot. In this example, we use 3 dots but this is probably different for your robot.
- when
page starts, do 
set radio group to put your robot radio number!
The next rule runs on start and orders the robot to move forward. The robot will keep moving forward until another commands is received.
The robot constantly reports the distance measured by the ultrasonic sonar. When the distance changes, the robot sends a message to the microcode program. The 2 dots roughly mean 10cm + 2 x 5cm = 20cm (more or less).
