Simple thermo-hygrometer using an Arduino Micro

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I made a very simple thermo-hygrometer using an Arduino Micro, Adafruit DHT20 sensor, and 16x2 LCD display recently. The latter two both use an I²C interface so obtaining readings and printing output to the LCD was rather trivial. Just a fun little project, and made me itch to endeavour onto more exciting and challenging projects. I’d love to hear things you’ve done with such electronics (and perhaps inspire me!).

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I wrote a blog post as well if any one wants more details.

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nice … you can do similar with the oled .96 display using ssd1306.

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Looks like we have a couple of very adept hardware people @andreas, @pavlos!

Nicely done and nice to know!

:slight_smile:

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the pi able to do that too ?

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yes, on any pi (3,4,5) enable i2c, then connect

  • LCD 1602 display with GND, VCC, SDA, and SCL
  • DHT11 sensor to a GPIO pin, 3.3V, and GND

sample code as text file.

sample.txt (1.6 KB)

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Presumably a DHT20 or DHT22 would work as well in that case?

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yes, I just have the DHT11.

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