An implementation of secure communication through RF modules, using a cryptography library and a message exchange library.

emulate Oregon V1 RF433 sensor on ESP8266/ESP32 to transmit temperature reading received via MQTT

Using RF433MHz Transmitter and Receiver, the system can detect if the person wears helmet or not with the help of Pulse Sensor or a Limit Switch. Till the person wears helmet, the bike can start/stop. If the person removes helmet for more than 5 seconds, the key access will get disconnected.

Home alarm system based on raspberry hardware

This is a simple project with arduino unor3