# RGB LED

We will now move beyond simple digital signals and introduce a way to access a range of voltages.

You will need the components listed below.

```{admonition} Component list
- Raspberry Pi Pico
- Breadboard
- RGB LED
- 3 x 220 Ω Resistors
- 4 x M/M wires
```

Using an RGB LED, you will see how we can much more finely tune outputs - in this case to control brightness.

```{admonition} What's new?
:class: tip
- More Pulse Width Modulation (PWM)
- Using random numbers
```