DiyArduinoESP232AlarmSystem
Simple Arduino Alarmsystem using only and ESP32 and an RF433 Receiver
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Watch this video for the How To make:(click to view)
Compatible example Hardware:
https://www.ebay.de/itm/193291348372
https://www.ebay.de/itm/133276954602
https://www.ebay.de/itm/193021324784
433mhz RF Receiver:
https://www.ebay.de/itm/201765587137
https://www.ebay.de/itm/263359459841
needed library: https://github.com/sui77/rc-switch