115 lines
3 KiB
Python
115 lines
3 KiB
Python
# SPDX-FileCopyrightText: 2022 Charlyn G for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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#
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# Code for the Adafruit Learning System tutorial
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# Exercise Buddy: Motion aware BLE media controller
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# https://learn.adafruit.com/exercise-buddy/overview
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#
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import time
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import board
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import supervisor
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import neopixel
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import adafruit_ble
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import adafruit_lis3dh
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from adafruit_ble.advertising.standard import SolicitServicesAdvertisement
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from adafruit_ble_apple_media import AppleMediaService, UnsupportedCommand
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# Initialize the accelerometer
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i2c = board.I2C() # uses board.SCL and board.SDA
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# i2c = board.STEMMA_I2C() # For using the built-in STEMMA QT connector on a microcontroller
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lis3dh = adafruit_lis3dh.LIS3DH_I2C(i2c)
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# Initialize BLE radio
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radio = adafruit_ble.BLERadio()
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a = SolicitServicesAdvertisement()
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a.solicited_services.append(AppleMediaService)
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radio.start_advertising(a)
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# Neopixel indicator
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pixel_pin = board.NEOPIXEL
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pixel = neopixel.NeoPixel(pixel_pin, 1, brightness=0.5)
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YELLOW = (200, 150, 0)
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CYAN = (0, 100, 100)
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PINK = (231, 84, 128)
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pixel.fill(PINK)
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while not radio.connected:
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pass
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print("connected")
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pixel.fill(YELLOW)
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# Initialize variables
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last_x = 0
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last_y = 0
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last_z = 0
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paused = True
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WAIT = 0.2
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WIGGLE_ROOM = 5 # Increase this for more jitter compensation.
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def is_same_pos(last_position, current_position):
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# Returns true if current_position is similar enough
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# to last_position, within the specified wiggle room.
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diff = abs(current_position - last_position)
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print((diff,))
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return diff <= WIGGLE_ROOM
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def not_enough_movement(x, y, z):
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same_x = is_same_pos(last_x, x)
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same_y = is_same_pos(last_y, y)
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same_z = is_same_pos(last_z, z)
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return same_x and same_y and same_z
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while radio.connected:
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for connection in radio.connections:
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if not connection.paired:
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connection.pair()
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print("paired")
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pixel.fill(PINK)
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time.sleep(1)
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if connection.paired:
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pixel.fill(CYAN)
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ams = connection[AppleMediaService]
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print("app:", ams.player_name)
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try:
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xf, yf, zf = lis3dh.acceleration
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if not_enough_movement(xf, yf, zf):
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# Keep pausing.
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print("pause!")
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paused = True
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ams.pause()
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else:
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last_x = xf
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last_y = yf
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last_z = zf
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if paused:
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print("play!")
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paused = False
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ams.play()
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except OSError:
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supervisor.reload()
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except UnsupportedCommand:
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# This means that we tried to pause but there's
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# probably nothing playing yet, so just wait a bit
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# and try again.
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pixel.fill(PINK)
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time.sleep(10)
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supervisor.reload()
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time.sleep(WAIT)
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print("disconnected")
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pixel.fill(PINK)
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