Pure-Python interface for WIZNET 5k ethernet modules.
This driver depends on:
Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.
On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:
pip3 install adafruit-circuitpython-wiznet5kTo install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-wiznet5kTo install in a virtual environment in your current project:
mkdir project-name && cd project-name python3 -m venv .venv source .venv/bin/activate pip3 install adafruit-circuitpython-wiznet5kThis example demonstrates making a HTTP GET request to wifitest.adafruit.com.
import board import busio import digitalio import adafruit_requests as requests from adafruit_wiznet5k.adafruit_wiznet5k import WIZNET5K import adafruit_wiznet5k.adafruit_wiznet5k_socket as socket print("Wiznet5k WebClient Test") TEXT_URL = "http://wifitest.adafruit.com/testwifi/index.html" JSON_URL = "http://api.coindesk.com/v1/bpi/currentprice/USD.json" cs = digitalio.DigitalInOut(board.D10) spi_bus = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO) # Initialize ethernet interface with DHCP eth = WIZNET5K(spi_bus, cs) # Initialize a requests object with a socket and ethernet interface requests.set_socket(socket, eth) print("Chip Version:", eth.chip) print("MAC Address:", [hex(i) for i in eth.mac_address]) print("My IP address is:", eth.pretty_ip(eth.ip_address)) print("IP lookup adafruit.com: %s" %eth.pretty_ip(eth.get_host_by_name("adafruit.com"))) #eth._debug = True print("Fetching text from", TEXT_URL) r = requests.get(TEXT_URL) print('-'*40) print(r.text) print('-'*40) r.close() print() print("Fetching json from", JSON_URL) r = requests.get(JSON_URL) print('-'*40) print(r.json()) print('-'*40) r.close() print("Done!")This example demonstrates a simple web server that allows setting the Neopixel color.
import board import busio import digitalio import neopixel from adafruit_wiznet5k.adafruit_wiznet5k import WIZNET5K import adafruit_wiznet5k.adafruit_wiznet5k_wsgiserver as server from adafruit_wsgi.wsgi_app import WSGIApp print("Wiznet5k Web Server Test") # Status LED led = neopixel.NeoPixel(board.NEOPIXEL, 1) led.brightness = 0.3 led[0] = (0, 0, 255) # W5500 connections cs = digitalio.DigitalInOut(board.D10) spi_bus = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO) # Initialize Ethernet interface with DHCP eth = WIZNET5K(spi_bus, cs) # Here we create our application, registering the # following functions to be called on specific HTTP GET requests routes web_app = WSGIApp() @web_app.route("/led/<r>/<g>/<b>") def led_on(request, r, g, b): print("LED handler") led.fill((int(r), int(g), int(b))) return ("200 OK", [], ["LED set!"]) @web_app.route("/") def root(request): print("Root handler") return ("200 OK", [], ["Root document"]) @web_app.route("/large") def large(request): print("Large pattern handler") return ("200 OK", [], ["*-.-" * 2000]) # Here we setup our server, passing in our web_app as the application server.set_interface(eth) wsgiServer = server.WSGIServer(80, application=web_app) print("Open this IP in your browser: ", eth.pretty_ip(eth.ip_address)) # Start the server wsgiServer.start() while True: # Our main loop where we have the server poll for incoming requests wsgiServer.update_poll() # Maintain DHCP lease eth.maintain_dhcp_lease() # Could do any other background tasks here, like reading sensorsAPI documentation for this library can be found on Read the Docs.
For information on building library documentation, please check out this guide.
Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.
This library was written by Arduino LLC. We've converted it to work with CircuitPython and made changes so it works similarly to CircuitPython's WIZNET5k wrapper for the WIZnet 5500 Ethernet interface and CPython's Socket low-level networking interface module.
This open source code is licensed under the LGPL license (see LICENSE for details).
