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Raspberry Pi Pico MicroPython Ethernet

Overview

This is the MicroPython project, which aims to put an implementation of micropython, WIZnet ethernet chip and raspberry pi pico(RP2040). And, there are some micoropython examples using it.

Quick Start Firmware

• You can start this quickly with these compiled files.
  • Micropython firmware for RP2040(with axtls) (732KB)
  • Micropython firmware for RP2040(with mbedTLS) (850KB)

Quick Start YouTube

Main Features (components) based on on Micropython

• RP2040 SDK
• WIZnet W5100S (Ethernet Chip MacRaw mode) (or W5500)
• lwIP
• AXTLS
• mbedTLS
• upip

Hardware requirements

The W5100S-EVB-Pico is a microcontroller evaluation board based on the Raspberry Pi RP2040 microcontroller chip and full hardwired TCP/IP controller W5100S chip. The W5100S-EVB-Pico has the same role as the Raspberry Pi Pico platform and includes W5100S, so the Ethernet function is basically included. But in this repo, I used W5100S MacRaw mode and lwIP TCP/IP stack.

S/W Development Environment (Build Log)

• Windows 10, WSL

PS D:\> wsl -l -o
NAME            FRIENDLY NAME
Ubuntu          Ubuntu
Debian          Debian GNU/Linux
kali-linux      Kali Linux Rolling
openSUSE-42     openSUSE Leap 42
SLES-12         SUSE Linux Enterprise Server v12
Ubuntu-16.04    Ubuntu 16.04 LTS
Ubuntu-18.04    Ubuntu 18.04 LTS
Ubuntu-20.04    Ubuntu 20.04 LTS

root@LAPTOP-XXXXXX:/home/work/micropython# python --version
Python 3.8.5

• Build Log

root@LAPTOP-N9I1JU3D:/home/work/micropython/ports/rp2# make
[ -d build-PICO ] || cmake -S . -B build-PICO -DPICO_BUILD_DOCS=0 -DMICROPY_BOARD=PICO -DMICROPY_PY_WIZNET5K=5105 -DMICROPY_PY_LWIP=1
make -s -C build-PICO
[  0%] Performing build step for 'ELF2UF2Build'
[100%] Built target elf2uf2
[  0%] No install step for 'ELF2UF2Build'
[  0%] Completed 'ELF2UF2Build'
[  1%] Built target ELF2UF2Build
[  2%] Built target bs2_default
[  3%] Built target bs2_default_padded_checksummed_asm
..............................................................................
..............................................................................
[ 99%] Building C object CMakeFiles/firmware.dir/home/work/micropython/lib/tinyusb/src/class/vendor/vendor_device.c.obj
[ 99%] Building C object CMakeFiles/firmware.dir/home/work/micropython/lib/pico-sdk/src/rp2_common/pico_fix/rp2040_usb_device_enumeration/rp2040_usb_device_enumeration.c.obj
[100%] Linking CXX executable firmware.elf
   text    data     bss     dec     hex filename
 433796      92  164496  598384   92170 /home/work/micropython/ports/rp2/build-PICO/firmware.elf
[100%] Built target firmware

Raspberry Pi Pico & MicroPython example

I'm testing the examples below with this Raspberry Pi Pico MicroPython Ethernet projects.

• Initialize Network & Ping
• TCP/UDP Client
• TLS Client (with OpenSSL)
• MQTT Client (umqtt package)
• HTTP(S) Client (urequest package)
• Azure IoT Hub Client example
• AWS IoT Core Client example
• upip install (MicroPython packages)

Notice

It needs more memory optimization and exception handling implementation.