Elenco 21-881 Sound Reversing Car

The objective of the car is to go forward when you turn on the switch, and go backwards and turn left when the microphone detects noise (like a clap) and continue going straight until the microphone hears the noise again. I soldered and put it together; the car do go forward when i turn on the switch, and it goes backward when I clap, but it does not turn left. Any ideas how to fix the problem???

thank you!


The turning is just accomplished mechanically, so you probably did something like tightening the free wheel pivot point too much so that the wheel cannot swivel.

- Jan