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My first foray into home automation & IoT with MQTT.
Using cheap Wemos/LOLIN D1 Mini ESP8266 MCU boards & even cheaper DHT22 temperature/humidity sensors to report environmental data to Adafruit IO.
STL files available on Thingiverse, but be aware that the lack of thermal separation between the sensors & the MCU boards skews the readings. My later design vastly improved upon this original concept.
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