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How to Display“Hello World!”with Micro:bit?

2025-11-25

This project is very simple. A micro:bit could display“Hello World!”through a USB cable. This is also an entry experiment for you to enter the programming world of micro bit.

In the experiment, we will serve CoolTerm program as a serial communication software.


Components Required:
 

Micro:bit main board*1

USB cable*1


Test Code
 

Test Results
 

Connect micro:bit to computer via USB cable and transfer code to micro:bit.

Open CoolTerm, click Options and select SerialPort, set COM port and baud rate(115200). Click OK and Connect.

Tap“Capslock”to set to capital mode and press“R”on keyboard, as a result, “ Hello World!”will be displayed as below:

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