The time that the LED and the buzzer is on is based on the values ... This circuit will turn on /off an electronic relay using the same touch sensor . This touch switch circuit is composed from an ...

Even though the circuit uses smd components, construction of the touch sensor switch is not very hard because the ... in case of a finger touch at the touch pad (TP). LED 1 (green) is the power (PWR) ...

The LED driver ... allowing the touch keys to serve as a touch sense matrix. Specifically, by reconfiguring the touch keys, it allows the keys to function as an 8-channel proximity sensor to ...