====DHT11====

<wrap right>
{{:interfaces:dht11.jpg?200}} \\
{{:interfaces:dht11-pinout.jpg?200}} \\
</wrap>

Humidity and temperature sensor.

The temperature sensor is reasonably accurate but humidity
is ludicrously inaccurate but can be used to determine humidity
changes?
===RPi===

In the past (2/1/2016) the kernel mode for reading the DHT11 did not work
reliably or at all but in 2024 it appears to be functional but may require
a few retries.

==config.txt==

<code>
dtoverlay=dht11,gpiopin=17
</code>

==Temperature==

<code>
cat /sys/bus/iio/devices/iio:device0/in_temp_input
26000
</code>

==Humidity==
<code>
cat /sys/bus/iio/devices/iio:device0/in_humidityrelative_input
18000
</code>
===Resources===

[[https://cdn-learn.adafruit.com/downloads/pdf/dht.pdf|Data-sheet]]