This might be something some of you want to do. --R
http://www.makezine.com/blog/archive/2007/04/avr_based_rpm_meter_for_c.html?CMP=OTC-0D6B48984890
This might be something some of you want to do. --R
http://www.makezine.com/blog/archive/2007/04/avr_based_rpm_meter_for_c.html?CMP=OTC-0D6B48984890