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Seeed Studio XIAO nRF52840 with CircuitPython

CircuitPython is a programming language designed to simplify experimenting and learning to program on low-cost microcontroller boards. It makes getting started easier than ever with no upfront desktop downloads needed. Once you get your board set up, open any text editor, and get started editing code. It's that simple.

Getting Started​

Installation​

Step 1 Enter Bootloader Mode

Before we install CircuitPython to Seeed Studio XIAO nRF52840, it requires bootloader mode. We can enter the bootloadrer mode by the clicking Reset Button twice :

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Then the disk will show up:

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Step 2 Downloard the firmware for Seeed Studio XIAO nRF52840

Step 3 Drag the .urf file to the disk driver("XIAO-SENSE")

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Step 4 Check the disk driver if the name has changed to "CIRCUITPY".

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Now you have successfully install the CircuitPython to the Seeed Studio XIAO nRF52840 board.

Application​

Step 1 Download CircuitPython editor - Mu Editor and open it

Step 2 Click "Mode" and chose the mode as "CircuitPython"

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Step 3 Copy and upload the following codes:

"""Example for Seeed Studio XIAO nRF52840. Blinks the built-in LED."""
import time
import board
import digitalio

led = digitalio.DigitalInOut(board.LED)
led.direction = digitalio.Direction.OUTPUT

while True:
    led.value = True
    time.sleep(0.5)
    led.value = False
    time.sleep(0.5)

Click "Serial" to open REPL, move the codes to REPL

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The user LED on Seeed Studio XIAO nRF52840 then will flash.

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