113 lines
3.3 KiB
Python
113 lines
3.3 KiB
Python
# SPDX-FileCopyrightText: 2024 Liz Clark for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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import time
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import microcontroller
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import board
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from adafruit_hid.keyboard import Keyboard
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from adafruit_hid.keycode import Keycode
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import adafruit_ble
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from adafruit_ble.advertising import Advertisement
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from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
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from adafruit_ble.services.standard.hid import HIDService
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from adafruit_seesaw import seesaw, rotaryio, digitalio
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# ios modifier
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mod = Keycode.CAPS_LOCK
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# keycodes
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KBD_CODES = [
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[Keycode.SPACE], # center
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[mod], # up
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[Keycode.LEFT_ARROW], # left
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[Keycode.DOWN_ARROW], # down
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[Keycode.RIGHT_ARROW], # right
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]
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i2c = board.STEMMA_I2C()
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seesaw = seesaw.Seesaw(i2c, addr=0x49)
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seesaw_product = (seesaw.get_version() >> 16) & 0xFFFF
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print(f"Found product {seesaw_product}")
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if seesaw_product != 5740:
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print("Wrong firmware loaded? Expected 5740")
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buttons = []
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button_names = ["Select", "Up", "Left", "Down", "Right"]
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button_states = []
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for s in range(1, 6):
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seesaw.pin_mode(s, seesaw.INPUT_PULLUP)
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pin = digitalio.DigitalIO(seesaw, s)
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pin_state = False
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buttons.append(pin)
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button_states.append(pin_state)
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encoder = rotaryio.IncrementalEncoder(seesaw)
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last_position = 0
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if not buttons[0].value and button_states[0] is False:
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button_states[0] = True
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try:
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import _bleio
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time.sleep(2)
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_bleio.adapter.erase_bonding()
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time.sleep(2)
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print("Last BLE bonding deleted, restarting..")
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time.sleep(2)
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microcontroller.reset()
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except Exception: # pylint: disable=broad-except
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pass
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# BLE HID setup
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hid = HIDService()
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# keyboard & mouse HID setup
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kbd = Keyboard(hid.devices)
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advertisement = ProvideServicesAdvertisement(hid)
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advertisement.appearance = 961
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scan_response = Advertisement()
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scan_response.complete_name = "CircuitPython HID"
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ble = adafruit_ble.BLERadio()
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if not ble.connected:
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print("advertising")
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ble.start_advertising(advertisement, scan_response)
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else:
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print("already connected")
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print(ble.connections)
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time.sleep(2)
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while True:
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# check for BLE connection
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while not ble.connected:
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pass
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# while BLE connected
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while ble.connected:
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position = encoder.position
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# if the encoder is turned to the right
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if position > last_position:
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kbd.send(Keycode.RIGHT_ARROW)
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# if the encoder is turned to the left
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if position < last_position:
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kbd.send(Keycode.LEFT_ARROW)
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# reset encoder position
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if position != last_position:
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last_position = position
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print(f"Position: {position}")
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for b in range(5):
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if not buttons[b].value and button_states[b] is False:
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button_states[b] = True
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if b != 0:
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kbd.press(*KBD_CODES[b])
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print(*KBD_CODES[b])
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else:
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kbd.press(mod)
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kbd.press(*KBD_CODES[b])
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print(f"{button_names[b]} button pressed")
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if buttons[b].value and button_states[b] is True:
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button_states[b] = False
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kbd.release_all()
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print(f"{button_names[b]} button released")
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# if BLE disconnects, begin advertising again
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ble.start_advertising(advertisement)
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