Beehive Instrumentation Project-4: Adafruit HTU21D-F Temperature-Humidity Sensor Breakout Test


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.

htu21d-f

To test the sensor, I used code posted by Davespice:

https://www.raspberrypi.org/forums/viewtopic.php?f=44&t=76688

Here is a sample of the output over SSH:

Rpi HTU21D-F ouput 2

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.

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