Build an ON-OFF circuit using MOSFET
This project demonstrates the use of a switch in order to turn off and on the pixels on a Circuit Playground Express board from Adafruit.
Build a tiny data logger by connecting buttons and switches of all types to Hexabitz uSD card module.
It can only detect large changes when it's tilted. For example, opening or closing of a door, etc.
Switching HIGH and LOW two pins of Surilli WiFi by stacking "Surilli Relay Shield" onto Surilli WiFi.
The mercury switch provides a digital signal upon changing its position, which can be used for security purposes in doors, etc.
Turning LEDs on and off using Electric Paint.
Switching HIGH and LOW two pins of Surilli GSM by stacking "Surilli Relay Shield" onto Surilli GSM
Switching HIGH and LOW two pins of Surilli Basic M0 by stacking "Surilli Relay Shield" onto Surilli Basic M0.
Give a Magnet-Switch a try
Simple yet most useful Component in Electronics is a Relay, learn how to use one in this blog
A portable lightweight box that plays music and a light show when it is turned on.
I created a box that lights up green when people are speaking at a acceptable level. It flashes red and plays siren when people yell at it.