add finalized doorbell camera code from S&T

Author: brentru

MEMENTO/Memento_IOT_Doorbell/code.py

@@ -0,0 +1,109 @@
+# SPDX-FileCopyrightText: 2023 Brent Rubell for Adafruit Industries
+#
+# An open-source IoT doorbell with the Adafruit MEMENTO camera and Adafruit IO
+#
+# SPDX-License-Identifier: Unlicense
+import time
+import binascii
+import digitalio
+import bitmaptools
+import displayio
+import gifio
+import pwmio
+import ulab.numpy as np
+import adafruit_pycamera
+import os
+import board
+import busio
+import wifi
+import ssl
+import socketpool
+import adafruit_requests
+from adafruit_io.adafruit_io import IO_HTTP, AdafruitIO_RequestError
+from adafruit_debouncer import Debouncer
+
+print("CircuitPython Doorbell Camera")
+
+### WiFi ###
+# Add settings.toml to your filesystem CIRCUITPY_WIFI_SSID and CIRCUITPY_WIFI_PASSWORD keys
+# with your WiFi credentials. DO NOT share that file or commit it into Git or other
+# source control.
+
+# Set your Adafruit IO Username, Key and Port in settings.toml
+# (visit io.adafruit.com if you need to create an account,
+# or if you need your Adafruit IO key.)
+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')}!")
+
+pool = socketpool.SocketPool(wifi.radio)
+requests = adafruit_requests.Session(pool, ssl.create_default_context())
+
+# Initialize an Adafruit IO HTTP API object
+io = IO_HTTP(os.getenv("ADAFRUIT_AIO_USERNAME"), os.getenv("ADAFRUIT_AIO_KEY"), requests)
+
+# Adafruit IO feed configuration
+try:
+    # Get the 'camera' feed from Adafruit IO
+    feed_camera = io.get_feed("camera")
+except AdafruitIO_RequestError:
+    # If no 'camera' feed exists, create one
+    feed_camera = io.create_new_feed("camera")
+
+# Initialize memento camera
+pycam = adafruit_pycamera.PyCamera()
+# Turn off TFT backlight
+pycam.display.brightness = 0.0
+# Deinitialize the MEMENTO's NeoPixels
+# Why? The pixels use board.A1 and we want to use it to control the doorbell LED
+pycam.pixels.deinit()
+
+# Set up the button
+pin_button = digitalio.DigitalInOut(board.A0)
+pin_button.direction = digitalio.Direction.INPUT
+pin_button.pull = digitalio.Pull.UP
+
+# Set up the button's LED
+led = digitalio.DigitalInOut(board.A1)
+led.direction = digitalio.Direction.OUTPUT
+led.value = True
+print("Doorbell ready to be pressed!")
+
+def capture_send_image():
+    """Captures an image and send it to Adafruit IO."""
+    # Force autofocus and capture a JPEG image
+    pycam.autofocus()
+    jpeg = pycam.capture_into_jpeg()
+    print("Captured image!")
+    if jpeg is not None:
+        # Encode JPEG data into base64 for sending to Adafruit IO
+        print("Encoding image...")
+        encoded_data = binascii.b2a_base64(jpeg).strip()
+        # Send encoded_data to Adafruit IO camera feed
+        print("Sending image to Adafruit IO...")
+        io.send_data(feed_camera["key"], encoded_data)
+        print("Sent image to IO!")
+    else:
+        print("ERROR: JPEG frame capture failed!")
+    print("DONE, waiting for next press..")
+    # Turn the LED on to signal that the doorbell is ready to be pressed again
+    led.value = True
+    
+
+
+while True:
+    # Wait until the doorbell is pressed
+    if not pin_button.value:
+        print("Doorbell pressed!")
+        # Turn the doorbell LED off to signal that it has been pressed
+        led.value = False
+        # Play a doorbell tone using the speaker
+        pycam.tone(95, 0.5)
+        pycam.tone(70, 0.5)
+        capture_send_image()
+    time.sleep(0.01)