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ladyadaladyada
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Merge pull request #931 from caternuson/ble_snowglobe
Add BLE CPB snow globe
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‎Snow_Globe_BLE_CPB/ble_snowglobe.py

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import time
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import random
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import board
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import busio
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import neopixel
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import adafruit_lis3dh
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from adafruit_ble.uart_server import UARTServer
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from adafruit_bluefruit_connect.packet import Packet
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from adafruit_bluefruit_connect.color_packet import ColorPacket
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from adafruit_bluefruit_connect.button_packet import ButtonPacket
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#===| User Config |==================================================
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SNOWGLOBE_NAME = "SNOWGLOBE" # name that will show up on smart device
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DEFAULT_ANIMATION = 0 # 0-3, index in ANIMATIONS list
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DEFAULT_DURATION = 5 # total seconds to play animation
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DEFAULT_SPEED = 0.1 # delay in seconds between updates
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DEFAULT_COLOR = 0xFF0000 # hex color value
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DEFAULT_SHAKE = 27 # lower number is more sensitive
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# you can define more animation functions below
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# here, specify the four to be used
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ANIMATIONS = ('spin', 'pulse', 'strobe', 'sparkle')
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#===| User Config |==================================================
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# Configuration settings
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snow_config = {
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'animation' : DEFAULT_ANIMATION,
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'duration' : DEFAULT_DURATION,
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'speed' : DEFAULT_SPEED,
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'color' : DEFAULT_COLOR,
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'shake' : DEFAULT_SHAKE,
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}
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# Setup NeoPixels
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pixels = neopixel.NeoPixel(board.NEOPIXEL, 10)
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# Setup accelo
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accelo_i2c = busio.I2C(board.ACCELEROMETER_SCL, board.ACCELEROMETER_SDA)
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accelo = adafruit_lis3dh.LIS3DH_I2C(accelo_i2c, address=0x19)
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# Setup BLE
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uart_server = UARTServer(name=SNOWGLOBE_NAME)
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#--| ANIMATIONS |----------------------------------------------------
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def spin(config):
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start_time = time.monotonic()
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last_update = start_time
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p = -1
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while time.monotonic() - start_time < config['duration']:
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if time.monotonic() - last_update > config['speed']:
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pixels.fill(0)
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pixels[p % 10] = config['color']
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p -= 1
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last_update = time.monotonic()
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def pulse(config):
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start_time = time.monotonic()
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last_update = start_time
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brightness = 0
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delta = 0.05
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pixels.brightness = 0
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pixels.fill(config['color'])
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while time.monotonic() - start_time < config['duration']:
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if time.monotonic() - last_update > config['speed']:
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brightness += delta
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if brightness > 1:
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brightness = 1
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delta *= -1
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if brightness < 0:
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brightness = 0
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delta *= -1
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pixels.brightness = brightness
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last_update = time.monotonic()
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def strobe(config):
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start_time = time.monotonic()
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last_update = start_time
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turn_on = True
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while time.monotonic() - start_time < config['duration']:
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if time.monotonic() - last_update > config['speed']:
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if turn_on:
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pixels.fill(config['color'])
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else:
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pixels.fill(0)
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turn_on = not turn_on
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last_update = time.monotonic()
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def sparkle(config):
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start_time = time.monotonic()
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last_update = start_time
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while time.monotonic() - start_time < config['duration']:
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if time.monotonic() - last_update > config['speed']:
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pixels.fill(0)
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pixels[random.randint(0, 9)] = config['color']
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last_update = time.monotonic()
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#--| ANIMATIONS |----------------------------------------------------
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def play_animation(config):
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#pylint: disable=eval-used
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eval(ANIMATIONS[config['animation']])(config)
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pixels.fill(0)
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def indicate(event=None):
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if not isinstance(event, str):
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return
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event = event.strip().upper()
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if event == 'START':
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for _ in range(2):
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for i in range(10):
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pixels[i] = DEFAULT_COLOR
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time.sleep(0.05)
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pixels.fill(0)
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if event == 'CONNECTED':
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for _ in range(5):
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pixels.fill(0x0000FF)
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time.sleep(0.1)
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pixels.fill(0)
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time.sleep(0.1)
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if event == 'DISCONNECTED':
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for _ in range(5):
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pixels.fill(0x00FF00)
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time.sleep(0.1)
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pixels.fill(0)
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time.sleep(0.1)
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indicate('START')
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while True:
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uart_server.start_advertising()
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# wait for connection
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while not uart_server.connected:
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# check for shake while waiting
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if accelo.shake(snow_config['shake'], 5, 0):
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play_animation(snow_config)
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# connected
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indicate('CONNECTED')
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while uart_server.connected:
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if accelo.shake(snow_config['shake'], 5, 0):
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play_animation(snow_config)
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if uart_server.in_waiting:
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try:
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packet = Packet.from_stream(uart_server)
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except ValueError:
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continue
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if isinstance(packet, ColorPacket):
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#
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# COLOR
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#
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snow_config['color'] = packet.color
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pixels.fill(snow_config['color'])
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time.sleep(0.5)
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pixels.fill(0)
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if isinstance(packet, ButtonPacket) and packet.pressed:
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#
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# SPEED
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#
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if packet.button == ButtonPacket.UP:
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speed = snow_config['speed'] - 0.05
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speed = 0.05 if speed < 0.05 else speed
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snow_config['speed'] = speed
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play_animation(snow_config)
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if packet.button == ButtonPacket.DOWN:
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speed = snow_config['speed'] + 0.05
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snow_config['speed'] = speed
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play_animation(snow_config)
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#
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# DURATION
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#
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if packet.button == ButtonPacket.LEFT:
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duration = snow_config['duration'] - 1
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duration = 1 if duration < 1 else duration
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snow_config['duration'] = duration
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play_animation(snow_config)
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if packet.button == ButtonPacket.RIGHT:
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duration = snow_config['duration'] + 1
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snow_config['duration'] = duration
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play_animation(snow_config)
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#
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# ANIMATION
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#
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if packet.button == ButtonPacket.BUTTON_1:
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snow_config['animation'] = 0
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play_animation(snow_config)
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if packet.button == ButtonPacket.BUTTON_2:
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snow_config['animation'] = 1
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play_animation(snow_config)
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if packet.button == ButtonPacket.BUTTON_3:
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snow_config['animation'] = 2
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play_animation(snow_config)
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if packet.button == ButtonPacket.BUTTON_4:
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snow_config['animation'] = 3
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play_animation(snow_config)
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# disconnected
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indicate('DISCONNECTED')

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