To get started create a new Microbit project.

makecode.microbit.org

To access the blocks we need to program the LED strip, you need to add the neopixel extension to your project.

Show: Microbit: How to add an extension

---

To add an extension follow these steps:

1. Click on 'Advanced' in the toolbox
2. Click 'Extensions'
3. Type the name of the extension in the search box
4. Click on the extension in the search results
5. The extension and all it's blocks will be added to your toolbox

To be able to interact and program the LED strip we will need a variable that stores the strip.

Add the following code to your project. We set the value to be 30 as there are 30 LEDs on the strip.

We will need a variable called 'on' to store whether the lights should be in the on state (on = true) or the off state (on = false).

Create a variable called on and set it to be false at the start.

Show: Microbit: How to create a variable

---

In the Variables toolbox, create a new variable by clicking the 'Make a Variable' button.

Once you click this button a box will appear asking what you want to call your variable. Give it a name that reminds you what you will be using it for. For example, if you wanted to keep track of your score in a game, you would create a variable called 'score'.

We will use the on [loud] sound block to detect when you clap.

When a clap is detected:

• If on equals false, then we will turn on the light
• Else on must equal true so we will turn off the light

Add the following code to set the on variable to be true and light up the LED strip a colour.