# 🟨 PWM

### What is PWM?

PWM (Pulse Width Modulation) is a technique used to **control power** to devices by turning the signal on and off very quickly.  
By adjusting how long the signal stays on during each cycle, we can control things like **brightness**, **speed**, or **intensity**.

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### Included Modules:

- [Fan Motor](#module-01-fan-motor)

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### Module 01: Fan Motor

![](../Images/37.png)

#### Block 1:

![](../Images/38.png)

This block controls the fan speed in a range from **1 to 100**.

#### Block 2:

![](../Images/39.png)

This block controls the fan speed in a range from **1 to 1023**.

#### Block 3:

![](../Images/40.png)

This block controls the fan speed in a range from **1 to 100**, with **direction control**.

#### Block 4:

![](../Images/41.png)

This block controls the fan speed in a range from **1 to 1023**, with **direction control**.

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