Sound Activated: Sound & Clap Light Switches
Clap Light Switches and Sound Activated Switches
These electronic switches are activated by claps or sound. They pick up the sound and they switch things on and off.
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This super cool circuit behaves as a clapper-switch. You clap and the circuit turns on. Clap and it turns off. Great as a light clap switch.
Touch Switch Relay Board
Both a touch and a contact switch are built on one PC board so that the builder can see how each works. A battery can power the contact switch but you'll need an AC power supply for the touch switch to work well. The circuit switches a relay with a 3 Amp
Light Activated Relay Switches
Three relay-based electronic switching circuits that switch according to light levels.
Photo Sensor with Control Relay
The most popular use for this kit is to make you own night-light. It can also be used to switch just about any appliance on or off in light or darkness. Light sensitivity is adjustable over quite a range. The relay can handle up to 10 Amps at 110VAC. Oper
Sound Activated Electronic Switch
Adjust the sensitivity of this circuit to control a Relay that can turn on whatever is connected to the contacts of the relay. Very practical circuit for a variety of projects. Turn on a light when your dog barks, or set of a siren when an intruder makes