Touch Switch Using the 555 IC (CB879E)

Details

Published: Saturday, 18 March 2017 00:00

Written by Newton C. Braga

This basic configuration aof a touch switch controls a relay. Power supply can be 5, 6 or 12 V acoording the relay. The relay is a sensitive type with up to 50 mA of coil current. Never power this circuit from transfomerless power supplies.