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Code: Alles auswählen

#!/usr/bin/env python3
import struct
from time import sleep

from gpiozero import LED
from gpiozero.pins.pigpio import PiGPIOFactory


def main():
    factory = PiGPIOFactory(host="192.168.178.5")
    led = LED(17, pin_factory=factory)

    while True:
        try:
            print("ON" if led.is_lit else "OFF")
        except struct.error:
            print("Verbindungsfehler")
        sleep(5)


if __name__ == "__main__":
    main()

Code: Alles auswählen

from __future__ import annotations

import atexit
from typing import Literal

try:
    from RPi import GPIO as gpio
except ImportError:
    from unittest.mock import Mock

    gpio = Mock()

from pydantic import BaseModel
from fastapi import FastAPI
from fastapi.exceptions import HTTPException
from fastapi.responses import RedirectResponse


api = FastAPI()
ON_OFF = Literal[0, 1]

gpio.setup(gpio.BCM)
# gpio.setmode([2, 3, 4, 5, 6, 7], gpio.OUTPUT)
atexit.register(gpio.cleanup)


class ReadResponse(BaseModel):
    """
    Status des gelesenen GPIO Pin
    """

    pin: int
    state: bool


@api.get("/")
def root():
    """
    Umleitung zur Dokumentation
    """

    return RedirectResponse("/docs")


@api.get("/read/{pin}", response_model=ReadResponse)
def read(pin: int):
    """
    GPIO Pin lesen
    """

    try:
        state = bool(gpio.input(pin))
        # 1 / 0
    except Exception as e:
        raise HTTPException(404, e.args[0])

    return {"pin": pin, "state": state}


@api.post("/read/{pin}/{value}")
def write(pin: int, value: ON_OFF):
    """
    GPIO Pin setzen
    """

    try:
        gpio.output(pin, value)
        state = bool(gpio.input(pin))
        # 1 / 0
    except Exception as e:
        raise HTTPException(404, e.args[0])

    return {"pin": pin, "state": state}


# dann das Script mittels uvicorn von der Kommandozeile starten:
# uvicorn datei_ohne_erweiterung:api