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Everything ok. Default I2C address for BMP280 is 0x77. This version is running on 0x76 address according to I2C scanner, so you must change the library in order to work.Temp./Humidity sensor on board is HDC1080, not SI7021.
This breakout works well but this is not the version with Si7021. It is with the HDC1080. This is good for temperature en humidity so but this is not the same programming way. Please notice it !!!
Molto soddisfatto con le letture con l'aiuto di un modulo Wemos D1-mini funziona bene su wifi e dopo aver lampeggiato con Tasmota mi dà una bella grafica in Domoticz v2020.2
+ CO2e+pressure+temperature+humidity in one device - really used HDC1080 for t/h, not SI7021 - not so easy to use (need find libs, rewrite code for CCS811 etc) - sometimes shows strange results for all parameters, probably need some calibration
A very powerful product, however a bit difficult to burn-in and program in connection with an Arduino nano
Good for experiment and of course to measure. Will use it in indoor air quality testing.
Ma è difficile trovare librerie per Arduino che supporta tutti e tre i sensori.
E'arrivato in fretta, sembra normale. Non ho cercato di includere:-).
Tutto ok
funziona molto bene con tasmota