ESP8266 & Blynk


Recently I needed head regulation and it was super easy & cheap to implement using ESP8266 & Blynk. And yes, I know that both exist for a quite long time, but I didn't do "simple analogue in/out IoT" for a long time.

Just the beginning of mess I made
Electronics for the remote relay was around $5 and for temperature/humidity measurement around $4. I found both modules assembled on AliExpress, I just flashed firmware. 

DHT11 with Blynk app
Blynk is IoT platform, it has Android and iOS client apps, libraries for most popular development boards (including ESP8266) and the most for important for me it is open source. Unfortunately, they still don't have a web client.

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