Among the most important things we want to monitor from beehives are temperature and humidity in the hives. For convenience, I chose Adafruit’s breakout board for the HTU21D-F chip.
To test the sensor, I used code posted by Davespice:
Here is a sample of the output over SSH:
Looks like the corner of to upstairs room is a bit warm. Relative humidity started about 33%, and rose to 41% when I exhaled onto the sensor.