pibeacon: 22 - Ruuvi Tag sensors

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Sat May 23, 2020 10:30 am
kw123 offline
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Location: Dallas, TX

pibeacon: 22 - Ruuvi Tag sensors

ruvvitag https://ruuvi.com has a piece of hardware that fits well w pibeacon:

1. it sends an ibeacon message every second,
2. battery should last > 1 year
3. it sends as part of its message Temp, humidity, pressure (using BME280) and x,y,z acceleration ( gravity sensor)

With this beacon you can sense
1. presences
2. movement ( LIS2DH12 accelerometer)
3. environmental info (TPH using Bosch BME280)

The plugin offers 2 devices for each ruuvitag:
1. regular ibeacon. It will have regular signal, position.. as well as battery level info
2. sensor for TPH, acceleration in mg (1g= normal gravity)
it also calculates total acceleration (gravity sqrt(x*x+y*y+z*z)) and accelerationTurn (delta acc.%: ( |x-xlast|+|y-ylast|+|z-zlast|)/3*100): when you turn the device the total acceleration stays roughly constant while the acceleration_Turn info clearly shows a large change

How to setup
You get the MAC number of the device using the ruuvi tag station phone app.
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show here also the option of having a color code for the state image, here for temperature. this does not work when you show more than one state in the state column (eg temp/humidity)

To add ibeacon type device you allow new sensors for 1 minute and pick the right one to keep: pick the right MAC number and the description field will show something like this "ruuviTag-xx:xx:xx:xx:xx-sensor" (xx:..=MAC number) (you could also just add an ibeacon device and add the mac number at the bottom of the edit screen, then you would need to to a manual push of config to the rpis, The TX- signal strength for distance calculation is ~ -63dBm (enter in the proper field in device edit)

To add the sensor device you add an indigo/pibeacon/ruuvitag device and enter the MAC number, configure some of the sensitivity parameters and which RPI should monitor the sensor, you could select all of them. Then save.
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You then get the following states:
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With a very long battery life and frequent updates this sensors can be used anywhere in the house ( < 30m distance tot the nearest RPI) - do not expose to rain! to
- measure temperature, humidity, air pressure with high accuracy
- movement / tilt sensor on doors - windows, fridge, dogs
- regular ibeacon presence

There is no config option for the device itself, just power on and it is ready.

THE ONLY BAD NEWS: it is not small. It fits in my pocket, but not everyone would accept the size.
You can only get it directly from ruuvitag in Finland (at least in the US). I got mine in 4 days.

Karl

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