Merge pull request #2751 from adafruit/bird_feeder

adding memento bird feeder code

MEMENTO/IoT_Bird_Feeder/code.py

@@ -0,0 +1,87 @@
+# SPDX-FileCopyrightText: 2023 Brent Rubell for Adafruit Industries
+# SPDX-License-Identifier: MIT
+#
+# An open-source IoT birdfeeder camera with Adafruit MEMENTO
+
+import os
+import ssl
+import binascii
+import board
+import digitalio
+import socketpool
+import wifi
+import adafruit_pycamera
+import adafruit_requests
+from adafruit_io.adafruit_io import IO_HTTP, AdafruitIO_RequestError
+
+print("MEMENTO Birdfeeder 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(aio_username, aio_key, requests)
+
+try:
+    # Get the 'birdfeeder' feed from Adafruit IO
+    feed_camera = io.get_feed("birdfeeder")
+except AdafruitIO_RequestError:
+    # If no 'birdfeeder' feed exists, create one
+    feed_camera = io.create_new_feed("birdfeeder")
+
+# initialize camera
+pycam = adafruit_pycamera.PyCamera()
+# turn off the display backlight
+pycam.display.brightness = 0.0
+# set photo resolution
+pycam.resolution = 3
+# set focus to estimated bird location
+pycam.autofocus_vcm_step = 145
+
+# initialize PIR sensor
+pir = digitalio.DigitalInOut(board.A0)
+pir.direction = digitalio.Direction.INPUT
+
+def send_jpeg_to_io():
+    # before we send the image to IO, it needs to be encoded into base64
+    encoded_data = binascii.b2a_base64(jpeg).strip()
+    # then, send the encoded_data to Adafruit IO camera feed
+    print("Sending image to IO...")
+    io.send_data(feed_camera["key"], encoded_data)
+    print("Sent image to IO!")
+
+print("Waiting for movement...")
+old_pir_value = pir.value
+while True:
+    pir_value = pir.value
+    # if we detect movement, take a photo
+    if pir_value:
+        if not old_pir_value:
+            print("Movement detected, taking picture!")
+            # take a picture and save it into a jpeg bytes object
+            jpeg = pycam.capture_into_jpeg()
+            # if the camera successfully captured a jpeg, send it to IO
+            if jpeg is not None:
+                send_jpeg_to_io()
+            else:
+                print("ERROR: JPEG capture failed!")
+    else:
+        if old_pir_value:
+            print("Movement ended")
+        # update old_pir_value
+    old_pir_value = pir_value