Example Code for micro:bit-Read Keyboard Value (Basic mode)
Last revision 2025/12/31
This article provides a comprehensive guide to reading keyboard values using micro:bit in basic mode. The guide covers hardware and software preparation, including the installation of the Makecode library and integration with the Mind+ platform. It offers a clear wiring diagram and showcases sample code for reading numerical values from key inputs. The result section demonstrates how pressing a key on the micro:bit board will return its corresponding numerical value, making it an excellent resource for beginners looking to explore the capabilities of the micro:bit and expand their programming skills.
Hardware Preparation
- Math & Automatic expansion board for micro:bit, Quantity: 1
- micro:bit, Quantity: 1
Software Preparation
Makecode graphical programming, Mind+ platform.
Makecode Library Address.
About how to install a software library?
Wiring Diagram
No specific wiring required (touch keys are integrated on the board).
Other Preparation Work
Install the Makecode library from https://github.com/DFRobot/pxt-Math-Automatic.
About how to install a software library?
Sample Code
Read Keyboard Data (Basic mode)
Key Value in basic mode:
| Key Label | Value (numerical) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 4 |
| 5 | 5 |
| 6 | 6 |
| 7 | 7 |
| 8 | 8 |
| 9 | 9 |
| + | 10 |
| - | 11 |
| × | 12 |
| ÷ | 13 |
| = | 14 |
| DFlogo | 15 |
Result
Press a key then you will get the related key value. For instance, press key 2, then you get its value "2".
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