Parking lab
Tap the car to stop it or let it drive on; drag it to move it.
speed
8 cm/s
Sound: on
52 cm
green · 4
yellow · 3
red · 2
buzzer · 8
The program, step by step
Serial Monitor · 9600 baud
green ≥ 40
yellow 20–39
red 8–19, beeps
stop < 8