CH9-C - LED Matrix Counter Button V3

We'll use Maker Tape to connect the Button to the Bit Board on a LEGO baseplate.

We'll connect our Button to Pin 5 and to Ground (GND).

You'll notice the Ground on the Bit Board (as well as the LED and other Crazy Circuits components we'll use) is color coded White.

While some components have Polarity our Button does not. If you connect it the other way around it will still work fine.

If you've never used a micro:bit before you'll want to check out this guide: Bit Board V2 Setup and Use

We're going to load the following code for our LED Matrix Counter Button V3 program: https://makecode.microbit.org/_DkH9Yj1aD...

Our code will change the number displayed on the LED Matrix when the button is pressed.

If the button is pressed more than 9 times the count will be reset to 0.

While the micro:bit can display two-digit numbers they scroll horizontally across the screen, making them difficult to read.

For this version we've simplified the code a bit and have added functions for resetting the count and displaying the count.

Once the code is loaded it should start running immediately.

You can power the micro:bit via the USB cable you used to load the code or you can use a battery pack plugged into the Bit Board.

The LED Matrix will show 0, and with each button press the number will increase by one.

Try holding down the button... this time the number will not keep incrementing!

While we tried to simplify the code for this one, it seems the least reliable at catching button presses.

Follow along with our recorded Live Stream!

You can watch the full video of us walking through this project, along with explaining and exploring the code: https://youtube.com/live/geFYVuV-DI8