Using Potentiomter with a fan

Using Arduino Project Guidance
1

Hello,
I got a PC fan, which is PWM PST, this one:

How can I adjust its speed with an 100k potentiometer?

As I saw its cable has 4 wires: ground, positive and another 2 that maybe can controll speed with PWM but I don’t know how. Does anyone know how can I do this?

Thank you.

2

When you searched for this subject on the internet you did not find any results? I used the words "arduino pwm resistor" to find a wonderful set of result sets.

3

Or searching for "arduino 4-wire fan" will find results which are even more directly useful.

Steve

4

The link you posted doesn't say anything about PWM voltage or minimum frequency and you didn't say which Arduino you have , so...?

5

Hello
PSEUDOCODE:

analogWrite(fanPin,analogRead(potPin)>>2);
6

This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.