This is a LAN system library using UART on Raspberry Pi Pico.
You can build a LAN system by converting the UART of Raspberry Pi Pico to RS485 and connecting them in parallel.
This is a program that reads received data.
Receive format: STX ADDRESS(00~10) DATA_LEN DATA(10Byte) ETX
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()This is an example of sending dictionary format data.
Transmission format: STX ADDRESS(00~10) DATA_LEN DATA(10Byte) ETX
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)
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