PWM a 3-pin PC fan with an Arduino - Bald Engineer
![PWM a 3-pin PC fan with an Arduino - Bald Engineer](https://www.baldengineer.com/wp-content/uploads/2017/07/arduino-pc-fan-tutorial.png)
Use a PNP transistor to PWM a 3-pin PC Fan with an Arduino. Because of how PNP transistors work, you'll need to use a NPN driver as well.
![](https://www.baldengineer.com/wp-content/uploads/2015/07/saleae-logic-analyzer-and-arduino-uno.jpg)
Benchmarking Arduino's digitalWrite() with a Logic Analyzer - Bald Engineer
![](https://www.planetanalog.com/wp-content/uploads/Fig-3-PWM-Fan-Driver.jpg)
How to implement PWM fan driver using configurable chips - Planet Analog
![](https://emc2arduino.files.wordpress.com/2013/02/4chfancontrolleruno_bb.png)
Automatic 4-channel pwm PC fan controller.
![](https://www.baldengineer.com/wp-content/uploads/2017/07/01-pwm-3-pin-pc-fan-multiple-cycles.png)
PWM a 3-pin PC fan with an Arduino - Bald Engineer
![](https://www.baldengineer.com/wp-content/uploads/2015/10/lbl-arduino-software-pwm.jpg)
Arduino Software PWM with millis() - Bald Engineer
![](https://d3ieau6kif6jv9.cloudfront.net/wp-content/uploads/2021/02/3-pin-pwm-fan-control.png)
Arduino PWM pc fan control
So you want PWM control of your 3-pin fan?, Page 5
![](https://projects.arduinocontent.cc/54fdedee-c2bc-4e33-a0fa-a3e0bd7ce43f.png)
Control PWM Fans with an Arduino
![](https://www.baldengineer.com/wp-content/uploads/2018/09/Penguin-Bot-Header-1960px.jpg)
PWM a 3-pin PC fan with an Arduino - Bald Engineer
This CPU fan speed reduction cable is made of high-quality insulating material PVC, which can be used for a long time, so that you can no longer bear
![](https://m.media-amazon.com/images/I/419Nqdpqh6L._AC_UF894,1000_QL80_.jpg)
3-Pin Fan Deceleration Line DGZZI Male-to-Female CPU Fan PWM Cable,Temperature Control Descending Speed line for Computer PC Case Fan RPM Connector
![](https://www.baldengineer.com/wp-content/uploads/2017/07/Noisy-RPM-SIgnal-with-PWM.png)
PWM a 3-pin PC fan with an Arduino - Bald Engineer
![](https://europe1.discourse-cdn.com/arduino/original/4X/6/1/2/612cffb8df33a95d9ef9dc9200779ec41e266c38.jpeg)
3 pin PC fan - Project Guidance - Arduino Forum
![](https://www.picmicrolab.com/wp-content/uploads/2017/10/Arduino-PWM-Fan-Controller-Featured-Image.jpg)
Arduino PWM Fan Controller – Microcontroller Based Projects