I show you how to hack a $21 motion sensor sound player to add a relay to control lights and motors.
MP3 Motion Sensor
https://amzn.to/3mYDsAC
Standard Relay
https://gravedecor.com/product/5v-activated-relays-with-standard-terminals-10a
3 Conductor Cable
https://amzn.to/39BqW73
Soldering Iron
https://amzn.to/3HyzQ1P
Hakko Soldering Station
https://amzn.to/3tNZo5r
Black Glue Sticks
https://amzn.to/3b8qFsK
Glue Gun
https://amzn.to/3HzDlow
