RuuviTag reader

Linux shell script to read ruuvi beacons. The script supports Ruuvi V3 specification.

Usage

Call the script with ruuvitag MAC address and optionally specify a timeout. The MAC address can be found for example with bluetoothctl. Beacons are listened for 10 seconds by default.

foo@bar:~$ ./ruuvi_v3_reader.sh <--mac mac_address> [--timeout timeout_seconds]

Beacons are listened for timeout duration and the last received beacon is used for calculation.

The scipt will return a JSON formatted line with the values like:

{
  "observation_time":"2021-06-25T17:07:29+00:00",
  "temperature":26.30,
  "pressure":1027.66,
  "humidity":20.5,
  "accl_x":-1.000,
  "accl_y":-1.726,
  "accl_z":0.714,
  "battery_voltage":2.899
}

Where the values are:

• observation_time - UTC time
• temperature - in celsius
• pressure - hPa
• humidity - Relative humidity (RH)
• accl - G
• battery_voltage - V