https://github.com/danni/uwebsockets

Micropython websockets implementation
https://github.com/danni/uwebsockets

Last synced: 2 months ago
JSON representation

Micropython websockets implementation

• Host: GitHub
• URL: https://github.com/danni/uwebsockets
• Owner: danni
• License: mit
• Created: 2016-08-31T09:27:43.000Z (almost 8 years ago)
• Default Branch: esp8266
• Last Pushed: 2023-06-09T06:06:38.000Z (about 1 year ago)
• Last Synced: 2024-04-17T01:53:35.380Z (2 months ago)
• Language: Python
• Size: 43.9 KB
• Stars: 176
• Watchers: 14
• Forks: 39
• Open Issues: 10
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Lists

• awesome-micropython - uwebsockets - MicroPython WebSocket implementation for ESP8266. (Libraries / Communications)
• awesome-micropython-lib - uwebsockets - An implementation of websockets for the ESP8266 (Networking)

README

        
# Micropython websockets (esp8266 implementation)

An implementation of websockets for the ESP8266 (client only ATM). This is a

work in progress, some of which might move into the modwebsocket C module

that's built into micropython, however that's incomplete, and the handshaking

isn't standard-compliant.

There's no asyncio on the esp8266 (today) but I'd like to build something that

looks for all intents and purposes like a asyncio `Protocol` using the

socket receive handler it does have.

## "Screenshot"

```

$ pip install adafruit-ampy

$ ampy mkdir uwebsockets

$ ampy put uwebsockets/protocol.py uwebsockets/protocol.py

$ ampy put uwebsockets/client.py uwebsockets/client.py

$ ampy run example/client.py

> esp8266 1.5.4(baaeaebb) v1.8.3-80-g1f61fe0-dirty on 2016-08-31 ESP module with ESP8266

< Hello esp8266 1.5.4(baaeaebb) v1.8.3-80-g1f61fe0-dirty on 2016-08-31 ESP module with ESP8266!

```

```

$ pip install websockets

$ python example/server.py

Connection from ('192.168.1.11', 1883)

< esp8266 1.5.4(baaeaebb) v1.8.3-80-g1f61fe0-dirty on 2016-08-31 ESP module with ESP8266

> Hello esp8266 1.5.4(baaeaebb) v1.8.3-80-g1f61fe0-dirty on 2016-08-31 ESP module with ESP8266!

```

## Minimal example client against 'ws://echo.websocket.org/'

```

$ webrepl_client.py 192.168.3.1

Password: 

WebREPL connected

>>> 

>>> 

MicroPython v1.9.4-272-g46091b8a on 2018-07-18; ESP module with ESP8266

Type "help()" for more information.

>>> import echo_websocket_org

The quick brown fox jumps over the lazy dog

>>> 

### closed ###

$ 

$ cat echo_websocket_org.py 

import uwebsockets.client

websocket = uwebsockets.client.connect("ws://echo.websocket.org/")

mesg = "The quick brown fox jumps over the lazy dog"

websocket.send(mesg + "\r\n")

resp = websocket.recv()

print(resp)

assert(mesg + "\r\n" == resp)

$ 

```

# Micropython Socket.io

An implementation of socket.io and engine.io for the ESP8266 (client only ATM).

This is a work in progress and has only been tested against Flask-SocketIO.

There's no asyncio on the esp8266 (today) but I'd like to build something that

looks for all intents and purposes like the socket.io web API. At the moment

this means its own event loop + lots of timeouts.

An interesting example client is

[this OpsGenie bridge](https://github.com/danni/micropython-opsgenie-bridge/tree/master/uclient).

## Compatibility

You might need to bake this code into your firmware to use it. You also need

to bake in the `logging` module. Finally to run the `unix` port you need to

[patch your micropython to support `socket.settimeout`](https://github.com/danni/micropython/tree/2379-unix-settimeout).