commit cf82fddbcbaab13602b4f9798f39937218e6dd2b
Author: Hofei <hofei@mail.de>
Date:   Fri Dec 27 13:46:04 2019 +0100

    Initial Commit

diff --git a/uhr.py b/uhr.py
new file mode 100644
index 0000000..d77c080
--- /dev/null
+++ b/uhr.py
@@ -0,0 +1,264 @@
+#!/usr/bin/python3
+
+from datetime import datetime
+from datetime import timedelta
+import sys
+import time
+import shlex
+import subprocess
+import toml
+import os
+import threading
+import gpiozero
+import signal
+sys.path.append("/home/pi/rpi_ws281x")
+from neopixel import *
+
+
+# # # # # # # # # #
+# LED strip configuration:
+# # # # # # # # # #
+LED_COUNT = 60      # Number of LED pixels.
+LED_PIN = 18      # GPIO pin connected to the pixels (must support PWM!).
+LED_FREQ_HZ = 800000  # LED signal frequency in hertz (usually 800khz)
+LED_DMA = 5       # DMA channel to use for generating signal (try 5)
+LED_INVERT = False   # True to invert the signal (when using NPN transistor level shift)
+LED_BRIGHTNESS = 4     # Set to 0 for darkest and 255 for brightest
+LED_CHANNEL = 0       # set to '1' for GPIOs 13, 19, 41, 45 or 53
+LED_STRIP = ws.WS2811_STRIP_GRB   # Strip type and colour ordering
+
+standard_helligkeit = LED_BRIGHTNESS
+
+# Zahl stellt den Wert in Minuten dar, wie lange kein Gerät erreichbar sein darf dass die Uhr "abgeschalten" wird
+ABSCHALTWERT = 4
+
+# LED Mapping
+std0 = [0, 1, 59]
+std1 = [4, 5, 6]
+std2 = [9, 10, 11]
+std3 = [14, 15, 16]
+std4 = [19, 20, 21]
+std5 = [24, 25, 26]
+std6 = [29, 30, 31]
+std7 = [34, 35, 36]
+std8 = [39, 40, 41]
+std9 = [44, 45, 46]
+std10 = [49, 50, 51]
+std11 = [54, 55, 56]
+stdliste = [std0, std1, std2, std3, std4, std5, std6, std7, std8, std9, std10, std11]
+
+
+# # # # # # # # # #
+# GPIO:
+# # # # # # # # # #
+I_MODE_TASTER = 3
+I_PLUS_TASTER = 4
+I_MINUS_TASTER = 14
+
+
+# # # # # # # # # #
+# Funktionen
+# # # # # # # # # #
+# Farbkonfiguration
+def rgb_standard():
+    rgb_leer = [0, 0, 0]
+    rgb_s = [0, 180, 0]
+    rgb_min = [32, 178, 170]
+    rgb_std = [255, 0, 255]
+    rgbconf = {"rgb_leer": rgb_leer, "rgb_s": rgb_s, "rgb_min": rgb_min, "rgb_std": rgb_std}
+    return rgbconf
+
+
+def alle_led(r, g, b, strip):
+    for pos in range(strip.numPixels()):
+        strip.setPixelColorRGB(pos, r, g, b)
+        strip.show()
+
+
+def led_calc(zeit, stdliste, rgbdict, led_gesetzt, strip):
+    if zeit.hour > 11:
+        index = zeit.hour - 12
+    else:
+        index = zeit.hour
+    hour = stdliste[index]
+    minute = zeit.minute
+    second = zeit.second
+
+    # Schnittfarben berechnen falls "Zeiger" übereinander liegen
+    # Stunde mit Minute vergleichen
+
+    if bool(set(hour) & {minute}):
+        for counter in range(0, 3):
+            rgbdict["rgb_min"][counter] = int((rgbdict["rgb_std"][counter] + rgbdict["rgb_min"][counter]) / 2)
+    # Stunde mit Sekunde vergleichen
+    if set(hour) & {second}:
+        for counter in range(0, 3):
+            rgbdict["rgb_s"][counter] = int((rgbdict["rgb_std"][counter] + rgbdict["rgb_s"][counter]) / 2)
+    # Minute mit Sekunde vergleichen
+    if {minute} & {second}:
+        for counter in range(0, 3):
+            rgbdict["rgb_s"][counter] = int((rgbdict["rgb_min"][counter] + rgbdict["rgb_s"][counter]) / 2)
+    led_gesetzt = led_setzen(hour, minute, second, rgbdict, led_gesetzt, strip)
+    return zeit.second, led_gesetzt
+
+
+def led_setzen(hour, minute, second, rgbdict, led_gesetzt, strip):
+    if not isinstance(led_gesetzt, list):
+        led_gesetzt = [led_gesetzt]
+    # Stunden setzen
+    for stunde in hour:
+        strip.setPixelColorRGB(stunde, rgbdict["rgb_std"][0], rgbdict["rgb_std"][1], rgbdict["rgb_std"][2])
+        # print("Stunden setzen")
+        # print(stunde, rgbdict["rgb_std"][0], rgbdict["rgb_std"][1], rgbdict["rgb_std"][2])
+    # Minute setzen
+    strip.setPixelColorRGB(minute, rgbdict["rgb_min"][0], rgbdict["rgb_min"][1], rgbdict["rgb_min"][2])
+    # print("Minute setzen")
+    # print(minute, rgbdict["rgb_min"][0], rgbdict["rgb_min"][1], rgbdict["rgb_min"][2])
+    # Sekunde setzen
+    strip.setPixelColorRGB(second, rgbdict["rgb_s"][0], rgbdict["rgb_s"][1], rgbdict["rgb_s"][2])
+    # print("Sekunde setzen")
+    # print(second, rgbdict["rgb_s"][0], rgbdict["rgb_s"][1], rgbdict["rgb_s"][2])
+    # Neue Leere LED berechnen
+    led_gesetzt_neu = set(hour) | {minute} | {second}
+    leerliste = list(set(led_gesetzt) - led_gesetzt_neu)
+    for leer in leerliste:
+        strip.setPixelColorRGB(leer, rgbdict["rgb_leer"][0], rgbdict["rgb_leer"][1], rgbdict["rgb_leer"][2]),
+        # print("Leer setzen")
+        # print(leer, rgbdict["rgb_leer"][0], rgbdict["rgb_leer"][1], rgbdict["rgb_leer"][2])
+    strip.show()
+    return list(led_gesetzt_neu)
+
+
+def taster_callback(button):
+    start = datetime.now()
+    ende = datetime.now()
+    while button.is_pressed:
+        ende = datetime.now()
+    dauer = ende - start
+    dauer = dauer + timedelta(seconds=0.3)
+    pin_num = check_taster(button)
+
+    if pin_num == I_MODE_TASTER:
+        handler_mode_taster(dauer)
+
+
+def check_taster(button):
+    pin_num = ""
+    for i in str(button.pin):
+        if i.isdigit():
+            pin_num = pin_num + str(i)
+    pin_num = int(pin_num)
+    return pin_num
+
+
+def handler_mode_taster(dauer):
+    if dauer > timedelta(seconds=3):
+        shutdown()
+
+
+def shutdown():
+    cmd = "sudo shutdown now"
+    cmd = shlex.split(cmd)
+    subprocess.call(cmd)
+
+
+# # # # # # # # # #
+# Threads
+# # # # # # # # # #
+def check_anwesenheit(strip):
+    """Funktion, welche als eigener Thread laeuft, um selbststaendig in einem gewissenen Intervall
+    alle Geraete in der Toml Liste zu pingen
+    arg: Objekt des neopixel LED Ringes
+    toml File: status "anwesend", ist kein Geraet von "anwesend" oder "dimmen" erreichbar, LED Helligkeit auf 0
+    sobald eine Adresse von status "dimmen" erreichbar ist, wird die Helligkeit verringert"""
+    def ping_wlan(ip):
+        """pingt die IP 2x an
+        return (0 | !0) 0 wenn erreichbar"""
+        befehl = "ping -c2 -W1 {}".format(ip)
+        cmd = shlex.split(befehl)
+        return subprocess.call(cmd)
+    
+    def ping_bt(bt):
+        """pingt die IP 2x an
+        return (0 | !0) 0 wenn erreichbar"""
+        befehl = "sudo /usr/bin/l2ping -c1 -t1 {}".format(bt)
+        cmd = shlex.split(befehl)
+        return subprocess.call(cmd)    
+    
+    # Tomlfile mit den IP Adressen einlesen
+    pfad = os.path.abspath(os.path.dirname(__file__))
+    configfile = os.path.join(pfad, "bt_wlan.toml")
+    with open(configfile) as conffile:
+        wlanliste = toml.loads(conffile.read())   
+    status_anwesend_liste = [] 
+    delta = timedelta(seconds=301)
+    last = datetime.now()
+    status = {}
+    global standard_helligkeit
+    while True:
+        now = datetime.now()
+        # Status der IP Adressen ermitteln
+        if delta.seconds > 300:
+            for key_status in wlanliste.keys():
+                for key_funkart in wlanliste[key_status].keys():
+                    for ip in wlanliste[key_status][key_funkart]:
+                        if key_funkart == "wlan":
+                            status_return = ping_wlan(ip)
+                        elif key_funkart == "bt":
+                            status_return = ping_bt(ip)
+                        else:
+                            status_return = False
+                        if not status_return:
+                            status[key_status] = True
+                            break
+                        else:
+                            status[key_status] = False
+            if status["anwesend"]:
+                status_anwesend_liste = []  # Geraet von anwesend erreichbar
+                helligkeit = standard_helligkeit
+            elif not status["anwesend"] and not status["dimmen"]:  # Wenn kein Geraet erreichbar ist
+                if len(status_anwesend_liste) < ABSCHALTWERT + 1:
+                    status_anwesend_liste.append(status["anwesend"])
+                print("Nichts los daheim die ", len(status_anwesend_liste), ".")
+                if len(status_anwesend_liste) > ABSCHALTWERT: 
+                    helligkeit = 0  
+            if status["dimmen"]:
+                helligkeit = standard_helligkeit * 0.5
+            if now.hour < 5 and not status["dimmen"]:
+                helligkeit = 0
+            strip.setBrightness(int(helligkeit))
+            last = datetime.now()
+        delta = now - last
+        time.sleep(30)
+
+
+def main():
+    mode_taster = gpiozero.Button(I_MODE_TASTER, hold_time=0.3)
+    mode_taster.when_pressed = taster_callback
+
+    lastsecond = None
+    led_gesetzt = 0
+    rgbconf = rgb_standard()
+    strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS,
+                              LED_CHANNEL, LED_STRIP)
+    strip.begin()
+    strip.setBrightness(255)
+    thread_check_wlan = threading.Thread(target=check_anwesenheit, args=(strip,))
+    thread_check_wlan.start()
+    alle_led(rgbconf["rgb_leer"][0], rgbconf["rgb_leer"][1], rgbconf["rgb_leer"][2], strip)
+    while True:
+        try:
+            rgbconf = rgb_standard()
+            now = datetime.now()
+            if lastsecond != now.second:
+                lastsecond, led_gesetzt = led_calc(now, stdliste, rgbconf, led_gesetzt, strip)
+            time.sleep(0.2)
+        except KeyboardInterrupt:
+            print("KeyboardInterrupt")
+            strip.setBrightness(0)
+            alle_led(0, 0, 0, strip)
+            sys.exit()
+
+
+if __name__ == "__main__":
+    main()