Create a stopwatch with Micro:bit and display TM1637

Purpose of this tutorial:

In this tutorial we will see how to create a stopwatch with the micro:bit card and the TM1637 display:

• When you press the A button of the Micro:bit, the stopwatch is triggered.
• When the Micro:bit B button is pressed, the stopwatch stops and returns to the value 0.

Required Components

• Micro:bit Board
• TM1637 display
• GPIO Extension Board
• Connector Wires

Mounting

To complete the mounting, connect:

• the VCC pin of the display to the 3.3V pin of the micro:bit.
• The GND pin from the display to the micro:bit GND pin
• The DIO pin from the display to the micro:bit adapter pin P1
• The CLK pin from the display to the micro:bit adapter pin P2

There are several mounting methods.

Mounting (1)

Mounting (2)

Makecode program

Here is the makecode program that allows you to create a stopwatch and display it on the TM1637 display.

Note: You must go to Extensions to import the TM1637 extension.