About the article

Cheap Bicycle Alarm

(Summer Circuits 2010 article)

The author wanted a very cheap and simple alarm for some of his possessions, such as his electrically assisted bicycle. This alarm is based on a cheap window alarm, which has a time-switch added to it with a 1-minute time-out. The output pulse of the 555 replaces the reed switch in the window alarm.

Downloading of this magazine article is reserved for registered users only.
Login | Register now!
Loading comments...