??? 08/04/05 12:54 Read: times |
#98806 - have a peek Responding to: ???'s previous message |
http://www.elecdesign.com/Articles/.../7952.html
Light to frequency sensors are (if youre requirement is reeasonable) availabe for a couple of bucks. The interface is dead simple and the code is the same as for a tachometer. Erik |