# Code

Let’s make a counter for your watch to remember all the motions you make when you walk or move your arm.

## Make a count variable

We need a variable to keep track of how many motions you make.

1. Go into Basic in the toolbox and pull an `||basic:on start||` on to the workspace.
2. Ok, in Variables click on `Make a Variable`. Name the variable as `motions`. Drag out a `||variables:set to||` block and change the name with the dropdown to `motions`. Place the variable into the `||basic:on start||` block.
3. Let’s show that there are no motions counted yet. Get a `||basic:show number||` from Basic and put it after the variable. Now, change the `0` to the `motions` variable from the Variables category in the toolbox.
``````let motions = 0;
motions = 0;
basic.showNumber(motions);``````

Ok, now we’ll count and show all of your movements.

1. Get an `||input:on shake||` block from Input and place it in the workspace.
2. To count each of your movements, get a `||variables:change by||` and place it in the `||input:on shake||`. Change the variable from `item` to `motions`.
3. Grab another `||basic:show number||` and put it at the bottom of the `||input:on shake||`. Find `motions` again back over in Variables and replace the `0` with it.
``````let motions = 0;
input.onGesture(Gesture.Shake, () => {
motions += 1;
basic.showNumber(motions);
})``````

## Reset!

If we want to start over from zero, then we need to have a way to reset the motion count. Let’s use one of the buttons to do it.

1. Go over to Input and get an `||input:on button pressed||`. Place a `||variables:set to||` inside. Change the variable name to `motions`.
2. Grab another `||basic:show number||` and change the `0` to the a `motions` variable.
``````let motions = 0;
input.onButtonPressed(Button.A, () => {
motions = 0;
basic.showNumber(motions);
})``````

## Finished!

Yeah! You’re ready to count your movements. Press the `|Download|` button to move the code to the micro:bit. Walk around, move you arm, and watch it count! Press the A button if you want to start over.

## More watch coding projects

Are you up for a bigger challenge? How about making your watch turn into a countdown timer or even a real digital watch? Take a look at some other coding projects for the micro:bit watch: