--- title: "W5500 Ethernet to Raspberry Pi Pico" url: "https://maker.wiznet.io/luca__________/projects/w5500-ethernet-to-raspberry-pi-pico/" markdown_url: "https://maker.wiznet.io/luca__________/projects/w5500-ethernet-to-raspberry-pi-pico/md" type: "UCC: User Created Content" author: "Bongjun Hur" author_url: "https://github.com/bjnhur/pico-W5500" editor: "WIZnet" editor_url: "https://maker.wiznet.io/" original_author: "Bongjun Hur" original_url: "https://github.com/bjnhur/pico-W5500" published: "2023-08-02" language: "en" hardware: ["WIZnet W5500"] likes: 2 views: 2038 comments: 0 source: "WIZnet Makers (https://maker.wiznet.io/)" --- # W5500 Ethernet to Raspberry Pi Pico > W5500 Ethernet to Raspberry Pi Pico Original author: Bongjun Hur (source: https://github.com/bjnhur/pico-W5500) ## Components - **WIZnet W5500** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5500)) WIZnet parts: W5500 ([Datasheet](https://docs.wiznet.io/Product/Chip/Ethernet/W5500/datasheet?utm_source=maker&utm_medium=project&utm_campaign=w5500), [product hub](https://maker.wiznet.io/products/w5500/)) ## Article ### 1. Circuit Python install first! Reason: lots of examples with W5500 > **CircuitPython has a lot of examples and support!**There are 260+ libraries for the standard CircuitPython API. Most of these will already work. Listed [here](https://circuitpython.readthedocs.io/projects/bundle/en/latest/drivers.html) - 1. Download the below uf2 file link on your computer > CircuitPython 6.2.0 - [adafruit-circuitpython-raspberry_pi_pico-en_US-6.2.0.uf2](https://downloads.circuitpython.org/bin/raspberry_pi_pico/en_US/adafruit-circuitpython-raspberry_pi_pico-en_US-6.2.0.uf2) - 2. Push and hold the BOOTSEL button and plug your Pico into the USB port of your Raspberry Pi or other computer. Release the BOOTSEL button after your Pico is connected. - 3. It will mount as a Mass Storage Device called RPI-RP2. - 4. Drag and drop the CircuitPython 6.2.0 UF2 file onto the RPI-RP2 volume. Your Pico will reboot. You are now running CircuitPython. > - **if you want, you can install MU editor to make your python code. But I think, it's not necessary. Just use your PythonIDE** such as Notepad, VSCode, ... Then, you can see "CIRCUITPY" drive on your system. ![circuitpy code.py](https://hackster.imgix.net/uploads/attachments/1283543/pic099_JiYyxplMdS.png?auto=compress%2Cformat&w=1280&h=960&fit=max) Now, we're ready to enjoy the code on python code.py with CircuitPython!! Once you edit and save your code on code.py, run your code on the board. Let's test "LED on" and "LED off" code. actually, just visit the below page to blink led on your rpi pico board. ### 2. Pin connect to W5500, WIZ850io use SPI1 on rpi pi board. ![](https://hackster.imgix.net/uploads/attachments/1283577/pic100_Gj7CaiE1gA.png?auto=compress%2Cformat&w=740&h=555&fit=max) - SPI1_SCK => WIZ850io SCLK - SPI1_TX => WIZ850io MOSI - SPI1_RX => WIZ850io MISO - SPI1_CSn => WIZ850io SCNn - GP15 => WIZ850io RSTn , and 3.3V, GND as well. for your reference, ![Pico connect to WIZ850io](https://hackster.imgix.net/uploads/attachments/1284379/pic110_kxsIl1l88m.png?auto=compress%2Cformat&w=740&h=555&fit=max) ### 3. W5500 Reset Test Copy below RESET_test code to code.py file on your rpi pico board. > Every 6 second, RESET pin control => See the link on & off ![Link ON](https://hackster.imgix.net/uploads/attachments/1283591/pic102_Ta9O58QuTL.png?auto=compress%2Cformat&w=740&h=555&fit=max) ### 4. W5500 adafruit_wiznet5k python library Before, ping test we prepare some libraries from Adafruit learning page. > Before continuing, make sure your board's **lib** folder has at least the following files and folderscopied over: > **adafruit_wiznet5k** > **adafruit_bus_device** > **adafruit_requests.mpy(Added** 04-21, 2021) I put the latest files and folders on my github repo. download files from here. - For **adafruit_wiznet5k,** I forked & **modified some code for DHCP operation**. please visit & download code from - [**https://github.com/bjnhur/Adafruit_CircuitPython_Wiznet5k**](https://github.com/bjnhur/Adafruit_CircuitPython_Wiznet5k) - Adafruit original lib - OR, original files can be download as belows. Find and copy **adafruit_bus_device** & **adafruit_requests.mpy** file from [Adafruit's CircuitPython library bundle](https://github.com/adafruit/Adafruit_CircuitPython_Bundle/releases/tag/20210409) matching your version of CircuitPython. ***Don't copy all files and folder in the library.*** - **Download** [**adafruit-circuitpython-bundle-6.x-mpy-20210409.zip**](https://github.com/adafruit/Adafruit_CircuitPython_Bundle/releases/download/20210409/adafruit-circuitpython-bundle-6.x-mpy-20210409.zip) - **unzip** and find **adafruit_requests.mpy.** ![file location of adafruit_requests.mpy](https://hackster.imgix.net/uploads/attachments/1283636/pic104_WllP5lmucp.png?auto=compress%2Cformat&w=740&h=555&fit=max) ![](https://maker.wiznet.io/upload/ckeditor5/204751489%5F1691054726%2Epng) Here is the code what Chat-GPT created for HTTP request. Chat-GPT looked this link: ```plaintext # pico-W5500 라이브러리 설치: (터미널에서 실행) # pip install pico-W5500 import machine import pico_wiznet5500 as wiznet import socket # W5500 모듈 설정 spi = machine.SPI(0, sck=machine.Pin(2), mosi=machine.Pin(3), miso=machine.Pin(4)) cs = machine.Pin(5, machine.Pin.OUT) rst = machine.Pin(6, machine.Pin.OUT) w5500 = wiznet.W5500(spi, cs, rst) # 네트워크 설정 mac = (0x00, 0x01, 0x02, 0x03, 0x04, 0x05) # MAC 주소 ip = (192, 168, 0, 100) # IP 주소 subnet = (255, 255, 255, 0) # 서브넷 마스크 gateway = (192, 168, 0, 1) # 게이트웨이 IP # W5500 모듈 설정 적용 w5500.set_ip(ip) w5500.set_subnet(subnet) w5500.set_gateway(gateway) w5500.set_mac(mac) # 웹 서버 정보 web_server_ip = "your_web_server_ip" web_server_port = 80 # 소켓 생성 sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) try: # 웹 서버에 연결 sock.connect((web_server_ip, web_server_port)) # HTTP 요청 전송 request = "GET / HTTP/1.1\r\nHost: {}\r\nConnection: close\r\n\r\n".format(web_server_ip) sock.send(request) # HTTP 응답 수신 및 출력 response = sock.recv(4096) print(response.decode()) except Exception as e: print("Error:", e) finally: sock.close() ``` --- Source: https://maker.wiznet.io/luca__________/projects/w5500-ethernet-to-raspberry-pi-pico/