https://github.com/naoto64/picolan

This is a LAN system library using UART on Raspberry Pi Pico.
https://github.com/naoto64/picolan

lan parallel raspberry-pi-pico rs485 rs485-communication rs485-comunication rs485protocol uart uart-protocol

Last synced: 4 days ago
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This is a LAN system library using UART on Raspberry Pi Pico.

• Host: GitHub
• URL: https://github.com/naoto64/picolan
• Owner: naoto64
• License: mit
• Created: 2022-01-03T14:22:02.000Z (almost 3 years ago)
• Default Branch: main
• Last Pushed: 2022-01-06T09:20:01.000Z (almost 3 years ago)
• Last Synced: 2023-05-17T13:28:17.092Z (over 1 year ago)
• Topics: lan, parallel, raspberry-pi-pico, rs485, rs485-communication, rs485-comunication, rs485protocol, uart, uart-protocol
• Language: Python
• Homepage:
• Size: 23.4 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md

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README

        
# PicoLAN

This is a LAN system library using UART on Raspberry Pi Pico.

## Description

You can build a LAN system by converting the UART of Raspberry Pi Pico to RS485 and connecting them in parallel.

## Demo

### Reception example

This is a program that reads received data.   

Receive format: `STX` `ADDRESS(00~10)` `DATA_LEN` `DATA(10Byte)` `ETX`

```python:demo1.py

from machine import UART, Pin

import PicoLAN

def print_func(arg):

    print(arg)

uart = UART(0, baudrate=9600, tx=Pin(0), rx=Pin(1))

plan = PicoLAN.PicoLAN(uart, 10, print_func, 10, 10, PicoLAN.DATA_LEN_FIXED)

while True:

    plan.read()

```

### Transmission example

This is an example of sending dictionary format data.   

Transmission format: `STX` `ADDRESS(00~10)` `DATA_LEN` `DATA(10Byte)` `ETX`

```python:demo2.py

from machine import UART, Pin

import PicoLAN

def print_func(arg):

    print(arg)

uart = UART(0, baudrate=9600, tx=Pin(0), rx=Pin(1))

plan = PicoLAN.PicoLAN(uart, 10, print_func, 10, 10, PicoLAN.DATA_LEN_FIXED)

data = {

    "a": "1",

    "b": "2"

    }

plan.send(data, 0)

```