Arduino Ceiling Fan Speed Control

Wemos d1 mini adds wifi functionality for this regulato.

Arduino ceiling fan speed control.

The temperature and fan speed are reported through a 8 digit 7 segment display fitted on a rack mounted aluminium bar. The arduino throttles the fans using pid logic and drives them through pwm. From the window opener we will run a control wire to the arduino controller. Temperature based fan speed control using arduino and lm35 sensor by muhammad ansar.

So i got an arduino wrote some code and now i can control my fan. I simply want to control a 4 wired fan or maybe several with an arduino board. Figure out the pins of the fan connector. Control the speed of the fan.

But it was way to loud. Some fans with three pins have plus minus but then a speedometer pin. You need a fan with a plus red pin a minus black pin and a speed pin. I had a few problems with the pwm part mainly because the fan made a disturbing noise so i had to add a simple rc filter at the output of the pwm pin on the arduino board.

I made this project because i wanted a way to automatically control the speed of a dc fan according to the temperature read by a lm35 sensor. Run a control wire from the fan to the arduino controller. Many projects that use a temp sensor but never the most simple thing. This instructable will guide how to make an ceiling fan speed regulator using triac phase angle control method.

Triac is conventionally controlled by atmega8 standalone arduino configured chip. The system uses a temperature sensor to control four fans that are driven by an arduino controller. Install an electric window opener on each of the three designated windows. I grabbed a fan.