DHT11Shield < AFNOG

---+ The !DHT11 temperature and humidity sensor

The [[http://datasheetcafe.databank.netdna-cdn.com/wp-content/uploads/2016/04/DHT11.pdf][DHT11]] is a temperature and humidity sensor using its own private protocol. Fortunately a driver is again available in the micro Python library implementing this protocol and making the use of the module very simple.

<img alt="wemosdht11.png" height="298" src="%ATTACHURL%/wemosdht11.png" title="wemosdht11.png" width="338" />

As before I wrote a small hardware test program verifying that I can correctly read temperature and humidity values before integrating the sensor into our Cayenne !IoT network.

Here is the hardware test code:

https://github.com/uraich/MicroPython_IoTDemos/blob/master/drivers/dht11/dht11.py

and here the Cayenne version publishing the temperature and humidity readouts.

https://github.com/uraich/MicroPython_IoTDemos/blob/master/cayenne/dht11/cayenneDHT11.py

-- %USERSIG{UliRaich - 2019-03-22}%

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Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
txt	dht11.py.txt	r1	manage	0.2 K	2019-03-22 - 14:45	UliRaich
png	wemosdht11.png	r1	manage	141.7 K	2019-03-22 - 14:43	UliRaich

This topic: AFNOG > WebHome > AFNOGWorkshop2019 > WeMosD1Mini > DHT11Shield
Topic revision: r2 - 2019-05-17 - UliRaich