1. Materials we need in this project:
2. Circuit diagram
3. Steps
4. Finished
Product list:
arduino uno https://www.utsource.net/itm/p/7929944.html
sound sensor https://www.utsource.net/itm/p/7959361.html
relay https://www.utsource.net/itm/p/8673177.html
jumpers wire https://www.utsource.net/itm/p/7961311.html
More details, pls check it on Youtube: