Code cleanup
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T
89
1og/README.md
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89
1og/README.md
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# ButtonCtl
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<div style="text-align:center"><img src="./buttons-platzierung.png" /></div>
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### dependencies
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- RPi python3-rpi.gpio
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```bash
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sudo apt install python3-rpi-gpio
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```
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- OpenSSH client
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```bash
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sudo apt install openssh
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```
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- circuitpython libraries for neopixel
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```bash
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pip3 install adafruit-circuitpython-neopixel
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```
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### install
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```bash
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git clone https://github.com/dylangoepel/buttonctl.git
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cd buttonctl
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./service.sh # create systemd .service file
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sudo systemctl enable buttond # autostart at boot
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sudo systemctl start buttond # start as daemon
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```
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### wiring
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- pin 23: left button input (pull-down)
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- pin 24: center button input (pull-down)
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- pin 22: right button input (pull-down)
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- pin 18: neopixel data
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- pin 4: (pull-down)
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- led strip:
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```
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(25-36) (13-24) (1-12)
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AERIE KELLER
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(counter-clockwise)
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```
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### usage
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→ Linker Button
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→ Mittlerer Button
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→ Kurze Wartezeit
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----------
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→ Linker Button
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→ Linker Button
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-----------
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→ Mittlerer Button
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216
1og/button.py
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216
1og/button.py
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import json
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import subprocess
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import threading
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import time
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import urllib.request
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import RPi.GPIO as gpio
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import board
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import neopixel
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def ssh(host, name):
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def ssh_(host_, name_):
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print("[ssh]", f"{name_}@{host_}")
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subprocess.check_call(["ssh", f"{name_}@{host_}"], stdin=subprocess.DEVNULL)
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threading.Thread(target=ssh_, args=(host, name)).start()
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class Door:
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def __init__(self, host, user_open, user_close):
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self.host = host
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self.user_open = user_open
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self.user_close = user_close
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def open(self):
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ssh(self.host, self.user_open)
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def close(self):
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ssh(self.host, self.user_close)
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class ButtonStrip:
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def __init__(self, strip, leds):
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self.leds = leds
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self.strip = strip
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def draw(self, color):
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for led in self.leds:
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self.strip[led] = color
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class ButtonHandler(threading.Thread):
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def __init__(self, pin, func, edge='both', bouncetime=100):
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super().__init__(daemon=True)
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self.pin = pin
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self.func = func
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self.edge = edge
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self.bouncetime = bouncetime / 1000
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self.lastpinval = gpio.input(self.pin)
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self.lock = threading.Lock()
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def __call__(self, *args):
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if not self.lock.acquire(blocking=False):
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return
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t = threading.Timer(self.bouncetime, self.read, args=args)
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t.start()
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def read(self, *args):
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pinval = gpio.input(self.pin)
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if ((pinval == 0 and self.lastpinval == 1 and self.edge in ['falling', 'both'])
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or (pinval == 1 and self.lastpinval == 0 and self.edge in ['rising', 'both'])):
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self.func(*args)
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self.lastpinval = pinval
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self.lock.release()
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class ButtonSensor:
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def __init__(self, pin, callback):
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self.pin = pin
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gpio.setup(pin, gpio.IN, pull_up_down=gpio.PUD_UP)
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self.handler = ButtonHandler(pin, callback, edge='falling', bouncetime=100)
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self.handler.start()
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gpio.add_event_detect(pin, gpio.BOTH, callback=self.handler)
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class ButtonPress(Exception):
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def __init__(self, pin):
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super().__init__()
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self.pin = pin
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class MultiSensor:
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def __init__(self, pins):
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self.pressed = None
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self.buttons = [ButtonSensor(pin, self.press) for pin in pins]
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def press(self, pin):
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self.pressed = pin
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def sleepSecond(self):
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for i in range(100):
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if self.pressed is not None:
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pressed_pin = self.pressed
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self.pressed = None
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raise ButtonPress(pressed_pin)
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time.sleep(0.01)
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def sleep(self, delay):
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for i in range(delay):
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self.sleepSecond()
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class APILoader(threading.Thread):
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def __init__(self, delay):
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super().__init__()
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self.delay = delay
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self.data = None
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self.loadData()
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def getData(self):
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if not self.is_alive():
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print("API thread is dead. Trying to restart...")
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self.start()
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return self.data
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def run(self):
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while True:
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try:
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self.loadData()
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except Exception as e:
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print("Unable to load API data:", e)
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time.sleep(self.delay)
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def loadData(self):
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# Load api data
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print("Loading API data...")
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response = urllib.request.urlopen("https://status-v2.chaospott.de/status.json").read()
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data = json.loads(response.decode("utf-8"))
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self.data = {door["location"]: not door["value"] for door in data["sensors"]["door_locked"]}
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def main():
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print("[*] Initializing...")
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# Initialize GPIO board
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gpio.setmode(gpio.BCM)
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# Create LED-Strip handle
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gpio.setup(4, gpio.IN, pull_up_down=gpio.PUD_UP)
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strip = neopixel.NeoPixel(board.D18, 36, brightness=0.5, pixel_order=neopixel.GRB, auto_write=False)
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# Create sub-handle for each button handle
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leds = {
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"cellar": ButtonStrip(strip, list(range(1, 12))),
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"center": ButtonStrip(strip, list(range(12, 24))),
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"aerie": ButtonStrip(strip, list(range(24, 36))),
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}
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# Create button press sensor
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buttons = {
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22: "cellar",
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23: "aerie",
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24: "center",
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}
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sensor = MultiSensor(buttons.keys())
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doors = {
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"aerie": Door("10.42.1.28", "open", "close"),
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"cellar": Door("10.42.1.20", "open", "close"),
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}
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# Initialize API interface
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loader = APILoader(4)
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loader.start()
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print("[*] Starting...")
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while True:
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for led in leds:
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leds[led].draw((0, 0, 0))
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data = loader.getData()
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for door in data:
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if door in leds:
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leds[door].draw((0, 255, 0) if data[door] else (255, 0, 0))
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strip.show()
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# Wait for a button press
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try:
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sensor.sleep(2)
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except ButtonPress as press:
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selection = buttons[press.pin]
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if selection == "aerie":
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leds["cellar"].draw((255, 0, 0))
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elif selection == "cellar":
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leds["aerie"].draw((255, 0, 0))
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else:
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continue
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leds["center"].draw((0, 255, 0))
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leds[selection].draw((0, 0, 0))
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strip.show()
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try:
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sensor.sleep(5)
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except ButtonPress as press:
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action = buttons[press.pin]
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if action == "center":
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doors[selection].open()
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elif action != selection:
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doors[selection].close()
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if __name__ == '__main__':
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main()
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BIN
1og/buttons-platzierung.png
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BIN
1og/buttons-platzierung.png
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Binary file not shown.
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After Width: | Height: | Size: 8.8 KiB |
BIN
1og/pins.png
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BIN
1og/pins.png
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Binary file not shown.
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After Width: | Height: | Size: 119 KiB |
17
1og/service.sh
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17
1og/service.sh
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#!/usr/bin/env bash
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# Generate systemd service file
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FILE=/etc/systemd/system/buttond.service
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cat > $FILE << EOF
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[Unit]
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Description = buttonctl
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[Service]
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Type = simple
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ExecStart = /usr/bin/python3 $PWD/button.py
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[Install]
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WantedBy=multi-user.target
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Alias=buttond.service
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EOF
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