Merge pull request #2265 from rdagger/patch-4
Update BLE code for CircuitPython 8 compatibility
This commit is contained in:
Dan Halbert
GitHub
commit
b31cb65f4f
1 changed files with 60 additions and 46 deletions
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@ -2,9 +2,13 @@
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#
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# SPDX-License-Identifier: MIT
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from binascii import unhexlify
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from time import sleep
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from adafruit_ble.uart_client import UARTClient
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from adafruit_ble.scanner import Scanner
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from micropython import const
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from adafruit_ble import BLERadio
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from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
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from adafruit_ble.services.nordic import UARTService
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from adafruit_bluefruit_connect.packet import Packet
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from adafruit_bluefruit_connect.button_packet import ButtonPacket
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from adafruit_bluefruit_connect.color_packet import ColorPacket
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@ -21,65 +25,75 @@ switch = Debouncer(pin)
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pixels = NeoPixel(NEOPIXEL, 1) # Set up built-in NeoPixel
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AQUA = 0x00FFFF # (0, 255, 255)
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GREEN = 0x00FF00 # (0, 255, 0)
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ORANGE = 0xFF8000 # (255, 128, 0)
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RED = 0xFF0000 # (255, 0, 0)
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BLUE = 0x0000FF # (0, 0, 255)
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AQUA = const(0x00FFFF) # (0, 255, 255)
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GREEN = const(0x00FF00) # (0, 255, 0)
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ORANGE = const(0xFF8000) # (255, 128, 0)
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RED = const(0xFF0000) # (255, 0, 0)
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BLUE = const(0x0000FF) # (0, 0, 255)
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gradients = {'Off': [(0.0, RED), (0.75, ORANGE)],
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'On': [(0.0, GREEN), (1.0, AQUA)]}
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palette = fancy.expand_gradient(gradients['Off'], 30)
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gradients = {"Off": [(0.0, RED), (0.75, ORANGE)], "On": [(0.0, GREEN), (1.0, AQUA)]}
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palette = fancy.expand_gradient(gradients["Off"], 30)
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gamma_levels = (0.25, 0.3, 0.15)
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color_index = 1
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fade_direction = 1
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TARGET = 'a0:b4:c2:d0:e7:f2' # CHANGE TO YOUR BLE ADDRESS
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TARGET = "f0:74:72:60:87:d2" # CHANGE TO YOUR BLE ADDRESS
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target_address = TARGET.split(":") # Convert address string to list of bytes
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target_address.reverse() # Reverse bytes to match Address class little-endian
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target_address = unhexlify("".join(target_address)) # Convert list to bytes
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button_packet = ButtonPacket("1", True) # Transmits pressed button 1
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scanner = Scanner() # BLE Scanner
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uart_client = UARTClient() # BLE Client
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ble = BLERadio()
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uart_client = None
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while True:
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uart_addresses = []
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pixels[0] = BLUE # Blue LED indicates disconnected status
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pixels.show()
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# Keep trying to find target UART peripheral
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while not uart_addresses:
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uart_addresses = uart_client.scan(scanner)
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for address in uart_addresses:
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if TARGET in str(address):
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uart_client.connect(address, 5) # Connect to target
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if not uart_client:
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print("Trying to connect to BLE server...")
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# Keep trying to find target UART peripheral
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for adv in ble.start_scan(ProvideServicesAdvertisement):
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print(adv.address.address_bytes) # Print detected addresses
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if adv.address.address_bytes == target_address:
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uart_client = ble.connect(adv)
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print("Connected")
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break
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ble.stop_scan()
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while uart_client.connected: # Connected
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switch.update()
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if switch.fell: # Check for button press
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try:
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uart_client.write(button_packet.to_bytes()) # Transmit press
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except OSError:
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pass
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# Check for LED status receipt
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if uart_client.in_waiting:
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packet = Packet.from_stream(uart_client)
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if isinstance(packet, ColorPacket):
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if fancy.CRGB(*packet.color).pack() == GREEN: # Color match
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# Green indicates on state
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palette = fancy.expand_gradient(gradients['On'], 30)
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else:
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# Otherwise red indicates off
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palette = fancy.expand_gradient(gradients['Off'], 30)
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if uart_client and uart_client.connected:
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uart_service = uart_client[UARTService]
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while uart_client and uart_client.connected: # Connected
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switch.update()
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if switch.fell: # Check for button press
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try:
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# Transmit press
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uart_service.write(button_packet.to_bytes())
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except OSError:
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pass
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# Check for LED status receipt
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if uart_service.in_waiting:
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packet = Packet.from_stream(uart_service)
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if isinstance(packet, ColorPacket):
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# Color match
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if fancy.CRGB(*packet.color).pack() == GREEN:
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# Green indicates on state
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palette = fancy.expand_gradient(gradients["On"], 30)
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else:
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# Otherwise red indicates off
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palette = fancy.expand_gradient(gradients["Off"], 30)
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# NeoPixel color fading routing
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color = fancy.palette_lookup(palette, color_index / 29)
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color = fancy.gamma_adjust(color, brightness=gamma_levels)
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c = color.pack()
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pixels[0] = c
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pixels.show()
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if color_index in (0, 28):
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fade_direction *= -1 # Change direction
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color_index += fade_direction
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# NeoPixel color fading routing
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color = fancy.palette_lookup(palette, color_index / 29)
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color = fancy.gamma_adjust(color, brightness=gamma_levels)
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c = color.pack()
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pixels[0] = c
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pixels.show()
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if color_index in (0, 28):
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fade_direction *= -1 # Change direction
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color_index += fade_direction
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sleep(0.02)
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sleep(0.02)
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