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BuildCircuit is an online store for selling electronics kits and components related to Arduino, Raspberry Pi, etc. We ship from Liverpool, NSW, Australia.

We design and sell basic electronic kits and Arduino modules for all electronics enthusiasts.


100-240V AC appliances controllable do-it-yourself (DIY) clap switch

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US $19.81
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If the quantity displayed is less than what you need, please contact us as we can get this product within 7-10 working days or we may still have this in our other stores. Please contact us before you leave, we will respond.

This product is shipped from Sydney, Australia. Worldwide shipping available- we ship to USA, Canada, New Zealand, UK, EU and Non-EU countries.


If you do not know how to use a relay and do not know how to operate an AC lamp, please return the kit as it is.

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: 

a. Low cost clap switch: This clap switch has an LED on it and a loud sound activates the switchCheck 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.

Altogher 18pcs of resistors:

Other components: 30pcs.


Product Reviews

As we are getting few reviews for our products, we are displaying feedback from our store on Ebay. Please leave your feedback if you purchase a product from our store. Click on the image below to see all the recent feedback

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  1. Works as described

    Posted by Jessica Piliak on 20th Dec 2016

    It took at least 1 hour for me to build this kit. But it worked at last. Nothing confusing but just several resistors and components to make this simple project. It was fun building this project anyway.

  2. Good kit for beginners

    Posted by Ryan on 6th Sep 2016

    Perfect kit. I made this project for my school exhibition. Good time with counting people :)

    (This comment has been imported from previous store)

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