Here the circuit diagram of musical bell with touch switch and timer. This circuit is designed around CMOS IC CD4011 which work as the delay timer and IC UM66 which is well-known musical sound generator. When […]
Tag: touch switch
Touch Switch
Turn on and turn off your electrical devices using touch switch, so you can “play” your electronic devices more fun.. 🙂 . Touch switch don’t need mechanical part, so they will not worn out due to […]