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Creating Code

Installing CircuitPython generates a

code.py file on your CIRCUITPY drive. To

begin your own program, open your editor,

and load the code.py file from the

CIRCUITPY drive.

If you are using Mu, click the Load button

in the button bar, navigate to the

CIRCUITPY drive, and choose code.py.

Copy and paste the following code into your editor:

import board

import digitalio

import time

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)

If you're using a KB2040, QT Py or a Trinkey, please download the NeoPixel blink

example().

The KB2040, QT Py and the Trinkeys do not have a built-in little red LED! There is

an addressable RGB NeoPixel LED. The above example will NOT work on the

KB2040, QT Py or the Trinkeys!

The NeoPixel blink example uses the onboard NeoPixel, but the time code is the

same. You can use the linked NeoPixel Blink example to follow along with this

guide page.

Adafruit ESP32-S3 User Manual

Questions and Answers: