In my workshop, I often leave power tools plugged in the outlets and leave the workshop so there is a danger that my kids might come in and accidentally hurt themselves with them.
To prevent this, I wanted to have a way that I can turn off the power to all of the outlets manually, but also automatically in case I ever forget to turn them off when I leave the workshop.
The solution is this safety switch that is controlled by an Arduino Nano and uses the Reyax RYRR10S RFID and NFC module to read a card and turn on a contactor that turns on the power to the outlets. You can check the video below or the project Instructable to see how it works and how you can make one for yourself.
Tools and materials used on the project
- Arduino Nano: https://s.click.aliexpress.com/e/_DCQ73YF
- Reyax RYRR10S: https://www.techdesign.com/market/reyax/product-detail/ryx000040/ryrr10s?packing=Unit&tab=description
- https://www.amazon.com/REYAX-RYRR10S-Multiprotocol-Integrated-13-56MHz/dp/B09GVRVVVL
- 5V Relay Module: https://s.click.aliexpress.com/e/_Dk8zxsx
- Prototype PCBs: https://s.click.aliexpress.com/e/_DesjDFv
- High power contactor: https://s.click.aliexpress.com/e/_DlPvQAF
- Buzzer: https://s.click.aliexpress.com/e/_DktegUr
- Resistors: https://s.click.aliexpress.com/e/_DmPUNMT
- Jumper wires: https://s.click.aliexpress.com/e/_DFJeB6B
- Mini breadboards: https://s.click.aliexpress.com/e/_DlRVour
- Soldering station: https://s.click.aliexpress.com/e/_DDokURN
- Multimeter: https://s.click.aliexpress.com/e/_DdicqcP