This module provides a simple interface to [BME280/BMP280 temperature/air presssure/humidity sensors](http://www.bosch-sensortec.com/bst/products/all_products/bme280)(Bosch Sensortec).
Note that you must call [`setup()`](#bme280setup) before you can start reading values!
!!! caution
Note that you must call [`setup()`](#bme280setup) before you can start reading values! Furthermore, there has to be a variable delay between some tens to hundreds of milliseconds between `setup()` and reading measurements. Instead of using a fixed delay you might also poll the sensor until data is delivered e.g. `humi()` not returning `nil` anymore.
## bme280.altitude()
...
...
@@ -215,6 +218,7 @@ print(string.format("altitude=%s%d.%02d", curAltsgn<0 and "-" or "", curAlt/100,