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| 1 | +# SPDX-FileCopyrightText: 2024 Brent Rubell, written for Adafruit Industries |
| 2 | +# |
| 3 | +# SPDX-License-Identifier: MIT |
| 4 | +import time |
| 5 | +import board |
| 6 | +import displayio |
| 7 | +import terminalio |
| 8 | +from adafruit_display_shapes.rect import Rect |
| 9 | +from adafruit_display_text import label |
| 10 | +from adafruit_pyportal import PyPortal |
| 11 | + |
| 12 | +# Adafruit IO shared feed key |
| 13 | +IO_FEED_KEY = 'location' |
| 14 | +# Fetch the location every 5 seconds |
| 15 | +SLEEP_DELAY_SECONDS = 5 |
| 16 | +# Set the backlight brightness, 0.0 (off) to 1.0 (max brightness) |
| 17 | +BACKLIGHT_BRIGHTNESS = 0.5 |
| 18 | +# Location text and images |
| 19 | +LOCATION_IMAGES = { 'home': 'images/home.bmp', 'work': 'images/office.bmp', |
| 20 | + 'gym': 'images/workout.bmp', 'commute': 'images/subway.bmp' } |
| 21 | + |
| 22 | +# Create the PyPortal object |
| 23 | +pyportal = PyPortal(status_neopixel=board.NEOPIXEL) |
| 24 | + |
| 25 | +# Configure the PyPortal's display |
| 26 | +display = board.DISPLAY |
| 27 | +display.rotation = 0 |
| 28 | +display.brightness = BACKLIGHT_BRIGHTNESS |
| 29 | + |
| 30 | +# Display label and image coordinates |
| 31 | +TEXT_AREA_X = display.width // 14 |
| 32 | +TEXT_AREA_Y = 20 |
| 33 | +TEXT_AREA_LOCATION_X = display.width // 3 |
| 34 | +TEXT_AREA_LOCATION_Y = display.height - 20 |
| 35 | +IMAGE_SPRITE_X = (display.width // 3) - 10 |
| 36 | +IMAGE_SPRITE_Y = display.height // 5 |
| 37 | + |
| 38 | +# Create a displayIO Group |
| 39 | +group = displayio.Group() |
| 40 | + |
| 41 | +# Draw the background |
| 42 | +bg_group = displayio.Group() |
| 43 | +rect = Rect(0, 0, display.width, display.height, fill=0xFFFFFF) |
| 44 | +bg_group.append(rect) |
| 45 | +group.append(bg_group) |
| 46 | + |
| 47 | +# Use the default font |
| 48 | +font = terminalio.FONT |
| 49 | + |
| 50 | +# Draw a label for the header text |
| 51 | +text_area = label.Label(font, text="Where is Trevor?", color=0x000000, scale=3) |
| 52 | +text_area.x = TEXT_AREA_X |
| 53 | +text_area.y = TEXT_AREA_Y |
| 54 | +group.append(text_area) |
| 55 | + |
| 56 | +# Draw a label for the location text |
| 57 | +text_area_location = label.Label(font, text="@ home", color=0x000000, scale=3) |
| 58 | +text_area_location.x = TEXT_AREA_LOCATION_X |
| 59 | +text_area_location.y = TEXT_AREA_LOCATION_Y |
| 60 | +group.append(text_area_location) |
| 61 | + |
| 62 | +# Create a group for the icon only |
| 63 | +icon_group = displayio.Group() |
| 64 | +group.append(icon_group) |
| 65 | + |
| 66 | +# Show the group |
| 67 | +display.root_group = group |
| 68 | + |
| 69 | +def set_image(image_group, filename): |
| 70 | + """Sets the image file for a given group for display.""" |
| 71 | + print(f"Set image to {filename}") |
| 72 | + if image_group: |
| 73 | + image_group.pop() |
| 74 | + |
| 75 | + image_file = open(filename, "rb") |
| 76 | + image = displayio.OnDiskBitmap(image_file) |
| 77 | + image_sprite = displayio.TileGrid(image, |
| 78 | + pixel_shader=getattr(image, 'pixel_shader', |
| 79 | + displayio.ColorConverter())) |
| 80 | + image_sprite.x = IMAGE_SPRITE_X |
| 81 | + image_sprite.y = IMAGE_SPRITE_Y |
| 82 | + image_group.append(image_sprite) |
| 83 | + |
| 84 | +prv_location = None |
| 85 | +while True: |
| 86 | + try: |
| 87 | + print("Fetching location data...") |
| 88 | + # Fetch the location data from Adafruit IO |
| 89 | + feed = pyportal.get_io_feed(IO_FEED_KEY) |
| 90 | + # If the location value is in the list of images |
| 91 | + if feed['last_value'] in LOCATION_IMAGES: |
| 92 | + # Check if the location has changed from the last time |
| 93 | + # we fetched the location |
| 94 | + if prv_location == feed['last_value']: |
| 95 | + print("Location has not changed!") |
| 96 | + else: # Location has changed |
| 97 | + print(f"Location: {feed['last_value']}") |
| 98 | + # Load the image for the current location |
| 99 | + set_image(icon_group, LOCATION_IMAGES[feed['last_value']]) |
| 100 | + # Update the location text |
| 101 | + text_area_location.text=f"@ {feed['last_value']}" |
| 102 | + # Show the refreshed group |
| 103 | + display.root_group = group |
| 104 | + # Update the previous location |
| 105 | + prv_location = feed['last_value'] |
| 106 | + else: |
| 107 | + print("Location not found in images!") |
| 108 | + # Update the location text |
| 109 | + text_area_location.text="Error: Unknown Value!" |
| 110 | + # Show the refreshed group |
| 111 | + display.root_group = group |
| 112 | + except RuntimeError as e: |
| 113 | + print("Failed to fetch location data: ", e) |
| 114 | + |
| 115 | + # Wait 5 minutes (300 seconds) before fetching the location feed again |
| 116 | + print("Sleeping, fetching the location again in 5 minutes!") |
| 117 | + time.sleep(SLEEP_DELAY_SECONDS * 60) |
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