Wire.js

Tiny service for Raspberry Pi, that monitors 1-Wire devices connected to the board and writes its data to Graphite.

Tested on the original Raspberry Pi B board (running Debian 8.0) with DS18B20 temperature sensors.

Installation

Wire.js runs on Node.js 6+.

Using a pre-build package

$ wget https://github.com/eprev/wirejs/releases/download/v1.0.0/wirejs_1.0.0_armhf.deb
$ sudo dpkg --install wirejs_1.0.0_armhf.deb

This will install Wire.js to /opt/wirejs.

Bulding from the sources

$ git clone git@github.com:eprev/wirejs.git
$ cd wirejs
$ make release

Configutation

Copy /opt/wirejs/etc/wire.sample.json to /opt/wirejs/etc/wire.json.

Edit /opt/wirejs/etc/wire.json:

{
    "carbon": {
        "host": "localhost",
        "port": "2003"
    },
    "path": "/sys/bus/w1/devices", /* This is default path to 1-Wire devices */
    "devices": [{
        "id": "28-0000049a0f4a",    /* Device ID */
        "type": "temperature",      /* Device Type (only `temperature` is supported for the time being) */
        "name": "home.temp.inside", /* Graphite metric's name */
        "interval": "60"            /* How often read from the device (in seconds) */
    }/*, ...*/]
}

Running the service

# systemctl enable wirejs
# systemctl start wirejs

To see the log:

# journalctl -f -u wirejs