mkjanke / BLYNK_Fanspeed

ESP8266 code to read DHT11 temperature sensor, set fan speed via PWM and upload data to Blynk IoT platform

BLYNK Fanspeed

Wemos Mini D1 Fan speed controler

Reads DHT11 temperature probe and sets computer fan speed using PWM motor controller

Uploads temperature data to Blynk if Wifi connected.

Inspiration and sample code from Everlanders:

  https://youtu.be/aS3BiYaEfiw
  https://youtu.be/KX67lBrizPg

Blynk reconnection logic via:

  https://community.blynk.cc/t/c-blynk-legacy-code-examples-for-basic-tasks/22596/20

Libraries:

Arduino OTA
Blynk libraries Version >= 1.0.1
Adafruit DHT Sensor Library

To get started:

Rename setup.h.default to setup.h 
Edit WiFi and Blynk parameters in setings.h

Blynk Vpin Assignments

  V0  Uptime/Heartbeat (String)
  V1  DHT11 Temperature (Double, Degrees F)
  V2  DHT11 Humidity (Double, Min 0 Max 100)
  V3  Unused
  V4  Fan speed override (Integer, Min 0 Max 1)
  V5  Blynk Terminal Widget
  V6  Fan Speed (Integer, Percent, Min 0 Max 100)
  V7  Fan Start Temperature
  V8  Fan minimum speed at Start Tempurature
  V9  Fan Max Temp - temp at which fan runns 100%