![Controlling a 3 speed AC ceiling fan motor with a Raspberry Pi - Electrical Engineering Stack Exchange Controlling a 3 speed AC ceiling fan motor with a Raspberry Pi - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/HYcMz.jpg)
Controlling a 3 speed AC ceiling fan motor with a Raspberry Pi - Electrical Engineering Stack Exchange
![Amazon.com: GeeekPi 2PCS Raspberry Pi 4 PWM Controllable Fan, Raspberry Pi PWM Speed Adjustment Fan 40x40x10mm, Raspberry Pi Speed Control Fan DC 5V 4010 Quiet Fan for Raspberry Pi 4, 3 B+, Amazon.com: GeeekPi 2PCS Raspberry Pi 4 PWM Controllable Fan, Raspberry Pi PWM Speed Adjustment Fan 40x40x10mm, Raspberry Pi Speed Control Fan DC 5V 4010 Quiet Fan for Raspberry Pi 4, 3 B+,](https://m.media-amazon.com/images/I/51bp9APkEAS._AC_.jpg)
Amazon.com: GeeekPi 2PCS Raspberry Pi 4 PWM Controllable Fan, Raspberry Pi PWM Speed Adjustment Fan 40x40x10mm, Raspberry Pi Speed Control Fan DC 5V 4010 Quiet Fan for Raspberry Pi 4, 3 B+,
![Source Raspberry Pi 4 Cooling Fan Intelligent Speed Control Expansion Board RGB Cooling HAT with OLED Display for Raspberry Pi 3 on m.alibaba.com Source Raspberry Pi 4 Cooling Fan Intelligent Speed Control Expansion Board RGB Cooling HAT with OLED Display for Raspberry Pi 3 on m.alibaba.com](https://sc01.alicdn.com/kf/Hc4d40cae0a4044908b7b18a45b47c112T/205753950/Hc4d40cae0a4044908b7b18a45b47c112T.png)