Overview
This plug-in is for displaying the carbon dioxide concentration measurement result of MH-Z19 on HomeKit through homebridge.
Wiring diagram
Preparation settings
① Enable serial port
② Give read permission to the homebridge user on the serial port
Install
Configuration example of config.json
"accessories": [
{
"accessory": "CO2Sensor",
"name": "CO2 Sensor",
"uart_path": "/dev/ttyXXX",
"schedule": "*/5 * * * *",
"warning_level": 1500
}
]
-
accessory
→ Fixed value [required field] -
name
→ To your liking [required field] -
uart
→ Specify the UART to which MH-Z19 is connected in ttyXXX format. -
schedule
→ Specify the acquisition interval of CO2 concentration. -
warning_level
→ A warning will be displayed when CO2 exceeds this level.