Show HN: DIY Monitoring Temperature and Humidity in Unoccupied Zones

by apiculallc • 2 years ago

2 2 2 years ago

A small, DIY-friendly, contained and "offline" temperature / humidity monitoring system for hard-to-reach places like attics, garages, crawlspaces, sheds etc.

reify• 2 years ago

I had nothing but problems with DHT22/AM2302. most of the python scripts and instructions were deprecated

I now use the SHTC3 Temperature Humidity Sensor Module with any raspberry pi.

I followed this guide for the raspberry pi

https://cdn-learn.adafruit.com/downloads/pdf/adafruit-sensir...

enable i2c on the pi.

ssh into the pi create an alias to start it.

spdustin• 2 years ago

DHT22 isn't too bad (and certainly more accurate than the DHT11), and even though it's slow, it seems fine for the OP's use case.

Personally, I like the HDC3021. It's I2C, uses different addresses for different sample rates, high accuracy and precision, and has a built-in heater so your code can command it to cook off condensation if dew points are high. It's also more expensive, but man, it's a robust component.

Show HN: DIY Monitoring Temperature and Humidity in Unoccupied Zones

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