This is a simple Go program is to easly integrate a remote Home Assistant (Installed on a different computer than the Raspberry Pi) with Raspberry Pi's GPIO using MQTT to communicate.
This project fits my home needs so, please feel free to suggest changes and improvements, as well as contributing to this project.
- Make sure you have dep installed
- Clone this repo
git clone https://github.com/daco-tech/ha-rpi-mqtt-to-gpio.git - Create a configuration file with name: config.json at main.go file level with the text in the config section
- Run
maketo download dependencies and run the application - Run
env GOOS=linux GOARCH=arm GOARM=5 go build main.goto build the binary to run on the RaspberryPi
config.json file content example:
{
"mqtt": {
"host": "mqtt://<ip address>:1883",
"clientId": "rpihead"
},
"log": {
"verbose": true
},
"system": {
"loop_interval_sec": 1
},
"gpio": {
"mqtt2gpio": [
{
"name": "Boiler",
"pin": 23,
"on_boot_high": true,
"mqtt": {
"qos": 0,
"command_topic": "home/boiler/switch/set",
"command_retained": true,
"state_topic": "home/boiler/switch/state",
"state_retained": true,
"payload_available": "online",
"payload_not_available": "offline",
"payload_on": "ON",
"payload_off": "OFF"
}
}
],
"gpio2mqtt": [
{
"name": "Front Door",
"pin": 27,
"mqtt": {
"qos": 0,
"state_topic": "home/door/front/state",
"state_retained": true,
"payload_on": "closed",
"payload_off": "open",
"availability_topic": "home/door/front/status",
"availability_retained": true,
"payload_available": "online",
"payload_not_available": "offline"
}
}
]
}
}