Adding ANCS Files

CPB_ANCS/code.py

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+"""
+This demo shows the latest icons from a connected Apple device on a TFT Gizmo screen.
+
+The A and B buttons on the CircuitPlayground Bluefruit can be used to scroll through all active
+notifications. The screen's backlight will turn off after a certain number of seconds to save power.
+New notifications or pressing the buttons should turn it back on.
+"""
+
+import time
+import board
+import digitalio
+import displayio
+import adafruit_ble
+from adafruit_ble.advertising.standard import SolicitServicesAdvertisement
+from adafruit_ble.services.apple import AppleNotificationService
+from adafruit_gizmo import tft_gizmo
+from audiocore import WaveFile
+from audiopwmio import PWMAudioOut as AudioOut
+
+# Enable the speaker
+speaker_enable = digitalio.DigitalInOut(board.SPEAKER_ENABLE)
+speaker_enable.direction = digitalio.Direction.OUTPUT
+speaker_enable.value = True
+
+audio = AudioOut(board.SPEAKER)
+
+# This is a whitelist of apps to show notifications from.
+APP_ICONS = {
+    "com.tinyspeck.chatlyio": "/ancs_slack.bmp",
+    "com.basecamp.bc3-ios": "/ancs_basecamp.bmp",
+    "com.apple.MobileSMS": "/ancs_sms.bmp",
+    "com.hammerandchisel.discord": "/ancs_discord.bmp",
+    "com.apple.mobilecal": "/ancs_ical.bmp",
+    "com.apple.mobilephone": "/ancs_phone.bmp"
+}
+
+BLACKLIST = []
+DELAY_AFTER_PRESS = 15
+DEBOUNCE = 0.1
+DIM_TIMEOUT = 20   # Amount of timeout to turn off backlight
+DIM_LEVEL = 0.05
+
+a = digitalio.DigitalInOut(board.BUTTON_A)
+a.switch_to_input(pull=digitalio.Pull.DOWN)
+b = digitalio.DigitalInOut(board.BUTTON_B)
+b.switch_to_input(pull=digitalio.Pull.DOWN)
+
+file = open("/triode_rise.wav", "rb")
+wave = WaveFile(file)
+
+update_time = time.monotonic()
+
+def play_sound():
+    audio.play(wave)
+    time.sleep(1)
+
+def find_connection():
+    for connection in radio.connections:
+        if AppleNotificationService not in connection:
+            continue
+        if not connection.paired:
+            connection.pair()
+        return connection, connection[AppleNotificationService]
+    return None, None
+
+def check_dim_timeout():
+    global update_time
+    if a.value or b.value:
+        update_time = time.monotonic()
+    if time.monotonic() - update_time > DIM_TIMEOUT:
+        if display.brightness > DIM_LEVEL:
+            display.brightness = DIM_LEVEL
+    else:
+        if display.brightness == DIM_LEVEL:
+            display.brightness = 1.0
+
+
+# Start advertising before messing with the display so that we can connect immediately.
+radio = adafruit_ble.BLERadio()
+advertisement = SolicitServicesAdvertisement()
+advertisement.complete_name = "CIRCUITPY"
+advertisement.solicited_services.append(AppleNotificationService)
+
+def wrap_in_tilegrid(open_file):
+    odb = displayio.OnDiskBitmap(open_file)
+    return displayio.TileGrid(odb, pixel_shader=displayio.ColorConverter())
+
+display = tft_gizmo.TFT_Gizmo()
+group = displayio.Group(max_size=3)
+group.append(wrap_in_tilegrid(open("/ancs_connect.bmp", "rb")))
+display.show(group)
+
+current_notification = None
+current_notifications = {}
+all_ids = []
+last_press = time.monotonic()
+active_connection, notification_service = find_connection()
+cleared = False
+
+while True:
+    if not active_connection:
+        radio.start_advertising(advertisement)
+
+    while not active_connection:
+        active_connection, notification_service = find_connection()
+        check_dim_timeout()
+
+    # Connected
+    update_time = time.monotonic()
+    play_sound()
+
+    with open("/ancs_none.bmp", "rb") as no_notifications:
+        group.append(wrap_in_tilegrid(no_notifications))
+        while active_connection.connected:
+            all_ids.clear()
+            current_notifications = notification_service.active_notifications
+            for id in current_notifications:
+                notification = current_notifications[id]
+                if notification.app_id not in APP_ICONS or notification.app_id in BLACKLIST:
+                    continue
+                all_ids.append(id)
+
+            all_ids.sort(key=lambda x: current_notifications[x]._raw_date)
+
+            if current_notification and current_notification.removed:
+                # Stop showing the latest and show that there are no new notifications.
+                current_notification = None
+
+            if not current_notification and not all_ids and not cleared:
+                cleared = True
+                update_time = time.monotonic()
+                group[1] = wrap_in_tilegrid(no_notifications)
+            elif all_ids:
+                cleared = False
+                now = time.monotonic()
+                if current_notification and current_notification.id in all_ids and \
+                    now - last_press < DELAY_AFTER_PRESS:
+                    index = all_ids.index(current_notification.id)
+                else:
+                    index = len(all_ids) - 1
+                if now - last_press >= DEBOUNCE:
+                    if b.value and index > 0:
+                        last_press = now
+                        index += -1
+                    if a.value and index < len(all_ids) - 1:
+                        last_press = now
+                        index += 1
+                id = all_ids[index]
+                if not current_notification or current_notification.id != id:
+                    update_time = now
+                    current_notification = current_notifications[id]
+                    print(current_notification._raw_date, current_notification)
+
+                    app_icon_file = open(APP_ICONS[current_notification.app_id], "rb")
+                    group[1] = wrap_in_tilegrid(app_icon_file)
+
+            check_dim_timeout()
+
+        group.pop()
+        update_time = time.monotonic()
+        active_connection = None
+        notification_service = None