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import board
import json
import os
import time
import wifi
import adafruit_connection_manager
import adafruit_minimqtt.adafruit_minimqtt as MQTT
import colours
import neopixel
num_pixels = 12
pixels = neopixel.NeoPixel(board.GP0, num_pixels)
CMD_FEED = "ctrl/gd_clock/cmd"
SENS_FEED = os.getenv('MQTT_SENS_FEED')
class Flashlight:
def start(self, clock):
print("Starting Flashlight mode")
pixels.fill((255, 255, 255))
clock.brightness = 0.5
pixels.brighness = clock.brightness
def loop(self, clock):
pass
flashlight = Flashlight()
class Rainbow:
count = 0
step = 1
def start(self, clock):
print("Starting rainbow mode")
pixels.fill((0, 0, 0))
clock.brightness = 0.1
pixels.brightness = clock.brightness
def loop(self, clock):
self.count += 1
if self.count >= num_pixels:
self.count = 0
i = self.count // self.step
for j in range(8):
pixels[i - j] = colours.hsv2rgb(
int(360 / num_pixels) * (i - j),
255,
256 * (1/2 ** j) - 1
)
pixels[i - 8] = (0, 0, 0)
rainbow = Rainbow()
class StatusRing:
def start(self, clock):
pixels.fill((0, 0, 0))
clock.brightness = 0.1
pixels.brightness = clock.brightness
def loop(self, clock):
if any(clock.batteries.values()):
pixels[0] = (255, 0, 0)
else:
pixels[0] = (0, 0, 32)
status_ring = StatusRing()
class GD_Clock:
brightness = 0.1
current_mode = rainbow
batteries = {}
def connected(self, client, userdata, flags, rc):
print("Connected to MQTT")
client.subscribe(CMD_FEED + "/#")
client.subscribe(SENS_FEED + "/#")
def disconnected(self, client, topic, message):
time.sleep(10)
client.connect()
def parse_cmd(self, topic, message):
print(f"New cmd on topic {topic}: {message}")
try:
payload = json.loads(message)
except ValueError:
return None
cmd = payload.get("cmd", None)
value = payload.get("value", None)
kwargs = payload.get("kwargs", {})
if cmd == "mode":
if value == "flashlight":
self.current_mode = flashlight
self.current_mode.start(self)
elif value == "rainbow":
self.current_mode = rainbow
self.current_mode.start(self)
elif value == "status":
self.current_mode = status_ring
self.current_mode.start(self)
elif cmd == "brightness":
if value == "+":
self.brightness = min(1.0, self.brightness + 0.1)
elif value == "-":
self.brightness = max(0.1, self.brightness - 0.1)
else:
try:
bright = float(value)
except ValueError:
return None
self.brightness = min(0.1, max(1.0, bright))
print("Setting brightness to", self.brightness)
pixels.brightness = self.brightness
def parse_sensor(self, topic, message):
print(f"New sensor message on topic {topic}: {message}")
hm, room, sensor = topic.split("/")
if sensor == "batt_low":
try:
self.batteries[room] = bool(int(message))
except ValueError:
pass
def message(self, client, topic, message):
if topic.startswith(CMD_FEED):
self.parse_cmd(topic, message)
elif topic.startswith(SENS_FEED):
self.parse_sensor(topic, message)
# ****** Main code ********************************************************** #
print("Connecting to WiFi")
try:
wifi.radio.connect(
os.getenv('CIRCUITPY_WIFI_SSID'),
os.getenv('CIRCUITPY_WIFI_PASSWORD')
)
except TypeError:
print("Could not find WiFi info. Check your settings.toml file!")
raise
print("Connected to WiFi")
pool = adafruit_connection_manager.get_radio_socketpool(wifi.radio)
mqtt_client = MQTT.MQTT(
broker=os.getenv('MQTT_HOST'),
socket_pool=pool,
)
clock = GD_Clock()
mqtt_client.on_connect = clock.connected
mqtt_client.on_disconnect = clock.disconnected
mqtt_client.on_message = clock.message
mqtt_client.connect()
clock.current_mode.start(clock)
while True:
mqtt_client.loop(timeout=1)
clock.current_mode.loop(clock)
time.sleep(1)
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