When I was traveling by bike a few days ago, I noticed that my wireless bike computer stopped working. The quick method of repair by battery replacement unfortunately didn’t bring the desired success.

To find out which part was defect - receiver or transmitter - I decided to construct a diagnose device for checking wireless bike computer.

How to do this you can read in the attached documents.

Revision 1
Piezo speaker added to the circuit to get an acoustically feedback also.
English and german documentation corrected.