brainelectronics / ESP32-Wiznet-W500-Micropython

Connecting ESP32 to W5500 using micropython

Micropython-ESP32-W5500 (Wiznet)

Connect your ESP32 to W5500 (Wiznet) ethernet module. and use Python requests as http client

---

• General
• Installation
  • Install required tools
• Setup
  • Manually
    • Upload files to board
• Hardware
  • Wiring
• Limitations

General

Forked from Ayyoubzadeh/ESP32-Wiznet-W500-Micropython

Same as code posted by vinz-uts on Micropython Forum

Installation

Install required tools

Python3 must be installed on your system. Check the current Python version with the following command

python --version
python3 --version

Depending on which command Python 3.x.y (with x.y as some numbers) is returned, use that command to proceed.

python3 -m venv .venv
source .venv/bin/activate

pip install -r requirements.txt

Setup

Manually

Upload files to board

Copy the module to the MicroPython board and import them as shown below using Remote MicroPython shell

Open the remote shell with the following command. Additionally use -b 115200 in case no CP210x is used but a CH34x.

rshell -p /dev/tty.SLAB_USBtoUART --editor nano

Perform the following command to copy all files and folders to the device

mkdir /pyboard/lib

cp wiznet5k*.py /pyboard/
cp -r lib/* /pyboard/lib

cp main.py /pyboard
cp boot.py /pyboard

Hardware

ESP32 ESP-WROOM-32 with W5500 (or W5100)

Wiring

ESP32 Board	W5500
3V3	VCC
GND	GND
GPIO15(HSPI_CS)	CS
GPIO14(HSPI_CLK)	SCK
GPIO13(HSPI_MOSI)	MOSI
GPIO12(HSPI_MISO)	MISO
GPIO19	RST
GPIO4 User LED

Top view of WIZ5500 Mini module

             LAN
             | |
             | |
            || ||
        -------------
  GND  | GND    GND  | GND
  GND  | GND    3.3V | 3.3V
  MOSI | MISO   3.3V | 3.3V
  SCK  | SCK    NC   | NC
  CS   | CS     RST  | 3.3V
  NC   | INT    MISO | MISO
        -------------

Limitations

• Only Works with http (not https)
• Does not support asyncio
  • W5500-EVB-PICO: setblocking, SOL_SOCKET, SO_REUSEADDR NOT working; Cannot use Asyncio start_server()