This project implements a simple bridge between MQTT and RF Sockets, to be able to trigger lights in a room. This is bidirectional, when triggering a light via a remote the MQTT status will be updated and vice versa.

It uses the Hardware RC Interface to recieve and transmit rf signals. I use it to trigger lights in my appartment.

1. Connect a 433mhz transimitter to the esp32 pin 18 and the reciever to pin 19

2. Use the make menuconfig to set the wifi credentials as well as the mqtt settings.

3. Setup the recongnized signals in the spiffs_image/lights.conf:

4. Build and Flash to esp32

Every signal that we want to map from/to mqtt is defined in a seperate line of the file. The parameters are seperated by ":".

NAME:PULSE_LEN:INITIAL_STATE:ON_CODE:OFFSET_TO_OFF:PROTOCOL

Every signal defined in the configuration is mapped to the lights/NAME topic on the mqtt broker:

You can see it's current state in lights/NAME/state. And you can set the state by writing a 0 or 1 to lights/NAME/set_state or toggle the state by writing to lights/NAME/toggle.