Merge pull request #2931 from adafruit/itsaSNAP-Esp32-S2-tft-color-detection-

ESP32-s2 tft color detection with itsaSNAP

Author: TrevKnows

ESP32-S2_TFT_Color_Detection/code.py

@@ -0,0 +1,80 @@
+# SPDX-FileCopyrightText: 2024 Trevor Beaton for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+'''This is a program for a color detection project using the APD-9960 and Feather ESP32-S2 & S3'''
+
+import os
+import ssl
+import time
+import wifi
+import board
+import busio
+import socketpool
+import adafruit_requests
+from adafruit_apds9960.apds9960 import APDS9960
+from adafruit_io.adafruit_io import IO_HTTP, AdafruitIO_RequestError
+
+# WiFi and Adafruit IO setup
+aio_username = os.getenv("aio_username")
+aio_key = os.getenv("aio_key")
+
+wifi.radio.connect(
+    os.getenv("CIRCUITPY_WIFI_SSID"), os.getenv("CIRCUITPY_WIFI_PASSWORD")
+)
+print(f"Connected to {os.getenv('CIRCUITPY_WIFI_SSID')}!")
+
+# Initialize network pool and Adafruit IO HTTP
+pool = socketpool.SocketPool(wifi.radio)
+requests = adafruit_requests.Session(pool, ssl.create_default_context())
+io = IO_HTTP(aio_username, aio_key, requests)
+
+# Set up I2C connection and APDS9960 sensor
+i2c = busio.I2C(board.SCL, board.SDA)
+apds = APDS9960(i2c)
+apds.enable_proximity = True
+apds.enable_color = True
+
+# Adafruit IO feed setup
+try:
+    hue_feed = io.get_feed("hue")
+except AdafruitIO_RequestError:
+    hue_feed = io.create_new_feed("hue")
+
+
+# Function to convert RGB to Hue
+def rgb_to_hue(r: int, g: int, b: int) -> float:
+    r_norm = r / 255.0
+    g_norm = g / 255.0
+    b_norm = b / 255.0
+    c_max = max(r_norm, g_norm, b_norm)
+    c_min = min(r_norm, g_norm, b_norm)
+    delta = c_max - c_min
+
+    if delta == 0:
+        calculated_hue = 0
+    elif c_max == r_norm:
+        calculated_hue = (60 * ((g_norm - b_norm) / delta) + 360) % 360
+    elif c_max == g_norm:
+        calculated_hue = (60 * ((b_norm - r_norm) / delta) + 120) % 360
+    elif c_max == b_norm:
+        calculated_hue = (60 * ((r_norm - g_norm) / delta) + 240) % 360
+    else:
+        calculated_hue = 0  # Fallback case
+
+    return calculated_hue
+
+
+# Main loop
+while True:
+    color_data = apds.color_data
+    red_value, green_value, blue_value = color_data[0], color_data[1], color_data[2]
+    hue_value = round(rgb_to_hue(red_value, green_value, blue_value))
+    print(f"Detected Hue: {hue_value}")
+
+    try:
+        io.send_data(hue_feed["key"], hue_value)
+        print(f"Sent Hue value {hue_value} to Adafruit IO feed 'hue'")
+    except AdafruitIO_RequestError as e:
+        print(f"Error sending data: {e}")
+
+    time.sleep(3)