YD-RP2040 micro python led blinker

A simple program that uses the onboard features to get started with this platform

about YD-RP2040 board

the YD-RP2040 is a RP-2040 based board that is:

• cheap
• offer a rgb led
• offer a reset button
• offer a power led indicator
• offer a usr button
• has an USB C connector

it is prefect to get started

GPIO23 RGB WS2812 LED

GPIO23 pin can be used to control the onboard RGB WS2812 LED.

if you want to use this feature you have to bridge the R68 pads (I'm not sure if an actual resistor need to be used but a ball of melted tin is doing the job)

the led can be controlled with the NeoPixel driver.

GPIO24 usr button

a button is connected to GPIO24

GPIO25 blue led

the board offers a simple led connected to the GPIO25 pin

Usage

flash micropython

follow instructions in here. (I've used the pico firmware, and it seems to work fine)

in short:

1. connect board to usb while pressing the boot button
2. drop micropython fw on the controller

use REPL

you can access the REPL via usb serial

using screen

after you figure which serial port is being usded (dmesg is your friend)

screen /dev/ttyACM0 115200

exit screen by pressing "ctrl+a" and immediatelly ""

using mpremote

simply run

mpremote

similarly to screen, exit by pressing "ctrl+a" and immediatelly ""

flash your python script

mpremote fs cp main.py :main.py

this command works similarly to the bash cp (you can rename files while moving them)