Micro:bit Stopwatch

I always wanted to know how a timer worked and I think it is good to know how a timer works

A timer is handy to have wen you want to know how long something takes to do or if you want to time something and that is why I am going to make a timer 

Supplies

1x BBC micro:bit

1x Computer to make and upload program/code

1x USB cable

Step 1: Write Program

this program is made in Microsoft https://makecode.microbit.org/ and I will guid you step by step

wen you are in Microsoft MakeCode klik on new project and then follow these steps

take (on button A pressed)  from input and place it .

make a variable named start in variables then take (set start to) and place it in (on button A pressed).

then go to input more and take (running time ms) and place it in (set start to).

next take a (on butten A pressed) and change the letter to B and place it separately from the first one.

make a new variable named elapsed and then take (set elapsed to) and place it in (on button B pressed).

go to math and take (0-0) and place it in (set elapsed to).

then go input more and take (running time ms) and place it in the left side of (0-0).

go to variables and take (start) and place it in the right side of (0-0).

then go to basic and take (show number 0) and place it in (on butten B pressed) onder (set elapsed to)

go to math and take (0/0) and place it in (show number 0)

then place the varieble named (elapsed) in the left side of (0/0)

and in the right side of (0/0) you typ 1000

that is the code

Step 2: Test Program

Use the emulator to test the program. if it doesn't work you can change the code

Step 3: Download and Upload Program

Simply download the program from the bebsite and then upload it into the micro:bit

Step 4: Use It

have fune with your new stopwatch and try to time your 100m sprint