homebridge-filebased-watersensor

A filebased leak sensor for Homebridge

This plugin sensor monitors the modification time of an "leak file" and a "noleak file" to determine the state of a leak sensor.

For background, this is my way of kludging together integration of a yolink door sensors into homekit.

My particular setup relies on several interconnected components:

1. Yolink Door sensors https://shop.yosmart.com/collections/featured/products/outdoor-contact-sensor
2. IFTTT recipes that connects with yolink. I append to an open or closed file hosted on dropbox when receiving the corresponding event from yolink.
3. Synology Cloudsync synchronizing my dropbox account
4. Homebridge running as a docker container on a Synology NAS. I present the synchronized dropbox folder to the docker container
5. Finally this plugin

Configure the plugin as follows:

  {
        "name": "Dishwasher ",
        "leakpath": "/yolink/devices/leaksensor/wet.txt",
        "noleakpath": "/yolink/devices/leaksensor/dry.txt",
        "accessory": "LeakSensor"
    }
    
    

The logic works as follows:

• If neither the leakpath nor noleakpath file exist, then the sensor is dry
• If only the leakpath file exists, then the sensor is wet
• If only the noleakpath file exists, then the sensor is dry
• If both files exist, then compare the last modification time. The most recently modified file reflects the current state of the sensor.

I poll the status of the files every 1/2 second.

--

Lots of improvements to make, especially around building the config properly.

Enjoy.