Merge branch 'main' of github.com:adafruit/Adafruit_Learning_System_Guides

Author: ladyada

LEGO_Carousel_PropMaker/carousel-loop.wav

@@ -0,0 +1,43 @@
+# SPDX-FileCopyrightText: 2024 Noe Ruiz for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+import board
+import audiocore
+import audiobusio
+import audiomixer
+from digitalio import DigitalInOut, Direction
+import pwmio
+import neopixel
+from adafruit_led_animation.animation.rainbow import Rainbow
+from adafruit_motor import servo
+
+# enable external power pin
+# provides power to the external components
+external_power = DigitalInOut(board.EXTERNAL_POWER)
+external_power.direction = Direction.OUTPUT
+external_power.value = True
+
+# i2s playback
+wave_file = open("carousel-loop.wav", "rb")
+wave = audiocore.WaveFile(wave_file)
+audio = audiobusio.I2SOut(board.I2S_BIT_CLOCK, board.I2S_WORD_SELECT, board.I2S_DATA)
+mixer = audiomixer.Mixer(voice_count=1, sample_rate=22050, channel_count=1,
+                         bits_per_sample=16, samples_signed=True)
+audio.play(mixer)
+mixer.voice[0].play(wave, loop=True)
+
+# servo control
+pwm = pwmio.PWMOut(board.EXTERNAL_SERVO, frequency=5)
+prop_servo = servo.ContinuousServo(pwm)
+
+# external neopixels
+num_pixels = 43
+pixels = neopixel.NeoPixel(board.EXTERNAL_NEOPIXELS, num_pixels)
+pixels.brightness = 0.3
+rainbow = Rainbow(pixels, speed=0.05, period=2)
+
+while True:
+    prop_servo.throttle = 1
+    rainbow.animate()
+    mixer.voice[0].level = 1

LEGO_Carousel_PropMaker/code.py

@@ -0,0 +1,104 @@
+# SPDX-FileCopyrightText: 2024 Liz Clark for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+
+import time
+import os
+import ssl
+import io
+import binascii
+import jpegio
+import microcontroller
+import wifi
+import socketpool
+import displayio
+from adafruit_qualia.graphics import Graphics, Displays
+import adafruit_minimqtt.adafruit_minimqtt as MQTT
+
+aio_username = os.getenv("ADAFRUIT_AIO_USERNAME")
+aio_key = os.getenv("ADAFRUIT_AIO_KEY")
+
+print(f"Connecting to {os.getenv('CIRCUITPY_WIFI_SSID')}")
+wifi.radio.connect(os.getenv("CIRCUITPY_WIFI_SSID"), os.getenv("CIRCUITPY_WIFI_PASSWORD"))
+print(f"Connected to {os.getenv('CIRCUITPY_WIFI_SSID')}!")
+
+camera_feed = aio_username + "/feeds/camera"
+
+graphics = Graphics(Displays.ROUND40, default_bg=None, auto_refresh=True)
+
+def center(g, b):
+    # center the image
+    g.x -= ((b.width * 2) - 720) // 4
+    g.y -= ((b.height * 2) - 720) // 4
+
+def decode_image(base64_msg):
+    # Decode the base64 image into raw binary JPEG data
+    decoded_image = binascii.a2b_base64(base64_msg)
+    # Create a JpegDecoder instance
+    decoder = jpegio.JpegDecoder()
+    # Use io.BytesIO to treat the decoded image as a file-like object
+    jpeg_data = io.BytesIO(decoded_image)
+    # Open the JPEG data source from the BytesIO object
+    width, height = decoder.open(jpeg_data)
+    print(width, height)
+    # Create a Bitmap with the dimensions of the JPEG image
+    bitmap = displayio.Bitmap(width, height, 65536)  # Use 65536 colors for RGB565
+    # Decode the JPEG into the bitmap
+    decoder.decode(bitmap)
+    # pylint: disable=line-too-long
+    grid = displayio.TileGrid(bitmap, pixel_shader=displayio.ColorConverter(input_colorspace=displayio.Colorspace.RGB565_SWAPPED))
+    center(grid, bitmap)
+    group = displayio.Group(scale=2)
+    group.append(grid)
+    graphics.display.root_group = group
+    graphics.display.refresh()
+
+
+# Define callback methods which are called when events occur
+def connected(client, userdata, flags, rc): # pylint: disable=unused-argument
+    # This function will be called when the client is connected
+    # successfully to the broker.
+    print(f"Connected to Adafruit IO! Listening for topic changes on {camera_feed}")
+    # Subscribe to all changes on the onoff_feed.
+    client.subscribe(camera_feed)
+
+
+def disconnected(client, userdata, rc): # pylint: disable=unused-argument
+    # This method is called when the client is disconnected
+    print("Disconnected from Adafruit IO!")
+
+
+def message(client, topic, msg): # pylint: disable=unused-argument
+    # This method is called when a topic the client is subscribed to
+    # has a new message.
+    print(f"New message on topic {topic}")
+    decode_image(msg)
+
+pool = socketpool.SocketPool(wifi.radio)
+ssl_context = ssl.create_default_context()
+# Initialize an Adafruit IO HTTP API object
+mqtt_client = MQTT.MQTT(
+    broker="io.adafruit.com",
+    port=1883,
+    username=aio_username,
+    password=aio_key,
+    socket_pool=pool,
+    ssl_context=ssl_context,
+)
+# Setup the callback methods above
+mqtt_client.on_connect = connected
+mqtt_client.on_disconnect = disconnected
+mqtt_client.on_message = message
+
+# Connect the client to the MQTT broker.
+print("Connecting to Adafruit IO...")
+mqtt_client.connect()
+while True:
+    # Poll the message queue
+    try:
+        mqtt_client.loop(timeout=1)
+        time.sleep(5)
+    except Exception as error: # pylint: disable=broad-except
+        print(error)
+        time.sleep(5)
+        microcontroller.reset()