Digital-touch-on-off-switch


Posted on Oct 18, 2012

Only one LED can be on when the circuit is at rest. Which LED is illuminated is determined by the touch pick-up that last had human contact. Pickup terminal A controls the on condition of LEDl, and terminal B controls the on condition of LED2.


Digital-touch-on-off-switch
Click here to download the full size of the above Circuit.

A 4001 quad two-input NOR gate is connected in an anti-bounce latching circuit that is activated by touching a pickup.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Robot Beacon with PIC12C508A
Dc static switch
Ac Watts Calculator Circuit
Stereo Tv Decoder Circuit
Car Battery Charger12V circuit and explanation
isolated ac current monitor
Commander
8 channel thermocouple based temperature data logger
Classic Schematics
Improved Anode Circuit Parasitic Suppression for Modern Tubes
Four-way operation of the dynamic braking circuit



Top