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Do-it-yourself (DIY) clap switch for 100-240V AC Appliances

Brand: BuildCircuit
Product Code: DIY21
Item Location: Sydney, Australia (Shipping Worldwide)
Availability: 3
AU $21.50

Description: This do-it-yourself (DIY) sound/clap operated switch can be used for switching your 100-240V AC electrical appliances. Usually, we use a clap switch to operate a lamp and it can easily do that for you. The kit responses to clap up to distance of 10 meters, but, the further you go, the louder the clap should be. 


  • Operates a 100-220V AC lamp with clap/loud sound.
  • Supply voltage: 6V-9V.
  • There are two supply input points: a DC barrel and a 2 pin screw terminal. You can use one of the points to power up the kit.
  • Consists a PTC resettable fuse. Switches the circuit off if there is unexpected flow of current over 500mA.
  • Dimension: 83.82mm x 49.53mm
  • Relay specification: Activation voltage: 5V DC. Controls appliances operating at 10A 250VAC, 10A 125VAC, 10A 30VDC, 10A 28VDC. Suitable for Europe, North America, Australia and New Zealand.


How did we make it ?

This DIY clap-switch is a combination of two kits that are available on

a. Low cost clap switch: This clap switch has an LED on it and a loud sound activates the switch. Check out project details.

b. Relay module for the clap switch: The relay module can be connected to the clap-switch operate 100-220V AC lamps. Check out project details.

We simply combined these two kits and made one complete clap-switch kit.

It's a do-it-yourself (DIY) kit: It comes as a pack of parts kit and is easily assembled if you can follow the silkscreen indicators (labels) and have beginning experience with a soldering iron. You will need to read the resistor bands or use a multimeter to determine the resistor sizes. Both the kit operate with 9V batteries.

Package contains the following components:

Clicking on the component links will also show you the steps for assembling the kit.



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