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Touch switch
The Touch Switch can be used as an autonomous device or it can be also used as a building block that you can add to other designs.
The Touch Switch detects the resistance of your finger by using a pair of pads. When touching the pads a relay turns immediately on. By touching again, the relay turns-off. When the finger is removed from the pads, the circuit remains at its last state. No matters for how much time the pads are touched, the circuit will always work. |
Relays
Chemical sprays
