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RuuviTag sensors (Bosch BME280 environmental sensor)
Posted: Friday 12 October 2018 16:25
by mpx2
Can someone explain what it would need to Domoticz support RuuviTag sensors? RuuviTag seems to be very accurate.
https://shop.ruuvi.com/product/ruuvitag/
RuuviTag is using calibrated Bosch BME280 environmental sensor. Measures temperature, relative humidity and air pressure.
https://www.bosch-sensortec.com/bst/pro ... cts/bme280
Python library for communicating with RuuviTag BLE Sensor Beacon and for decoding sensor data from broadcasted eddystone-url.
https://github.com/ttu/ruuvitag-sensor
Re: RuuviTag sensors (Bosch BME280 environmental sensor)
Posted: Friday 12 October 2018 20:31
by antwan
Domoticz allready supports BME280.
Re: RuuviTag sensors (Bosch BME280 environmental sensor)
Posted: Friday 12 October 2018 22:33
by mpx2
antwan wrote: ↑Friday 12 October 2018 20:31
Domoticz allready supports BME280.
How do I connect that to Domoticz and Raspberry Pi? I need wireless sensors without external power supply.
Re: RuuviTag sensors (Bosch BME280 environmental sensor)
Posted: Saturday 13 October 2018 5:47
by antwan
Mysensors?
Re: RuuviTag sensors (Bosch BME280 environmental sensor)
Posted: Saturday 13 October 2018 9:42
by devros
I have python script for conection with domoticz. But in my tests is RuviTag quite inacurate...
Re: RuuviTag sensors (Bosch BME280 environmental sensor)
Posted: Saturday 13 October 2018 11:55
by mpx2
devros wrote: ↑Saturday 13 October 2018 9:42
I have python script for conection with domoticz. But in my tests is RuviTag quite inacurate...
Seems that RuuviTag's reaction time is very slow. You need to open the enclosure or otherwise it takes ages to reach the right temperature and escpecially humidity.
https://blog.ruuvi.com/humidity-sensor-673c5b7636fc
Re: RuuviTag sensors (Bosch BME280 environmental sensor)
Posted: Sunday 21 April 2019 19:52
by mpx2
devros wrote: ↑Saturday 13 October 2018 9:42
I have python script for conection with domoticz. But in my tests is RuviTag quite inacurate...
There are many reports that Bosch BME280 is not accurate for temperature measurements.
Temperature measured by the internal temperature sensor. This temperature value depends on the PCB temperature, sensor element self-heating and ambient temperature and is typically above ambient temperature.
https://www.mouser.com/datasheet/2/783/ ... 509607.pdf
Looks like the only thing RuuviTag is suitable is pressure measurements.