light

SinricPro Smart Light Example

Control RGB LED with voice commands - brightness, color, and color temperature.

Hardware

• ESP32 board
• RGB LED (common cathode)
• 3x 220Ω resistors

Wiring

ESP32 GPIO25 → Red LED → 220Ω → GND
ESP32 GPIO26 → Green LED → 220Ω → GND
ESP32 GPIO27 → Blue LED → 220Ω → GND

Features

• RGB color control
• Brightness 0-100%
• Color temperature 2200-7000K (warm to cool white)
• PWM-based LED control
• Smooth transitions

Voice Commands

• "Alexa, turn on the light"
• "Alexa, set light brightness to 75"
• "Alexa, dim the light"
• "Alexa, set light to red"
• "Alexa, set light to warm white"
• "Alexa, make the light cooler"

Build

cd examples/light
idf.py build flash monitor

Configuration

Edit main/light_example.c - update WiFi and SinricPro credentials.

For different GPIO pins, modify:

#define LEDC_RED_GPIO    (25)
#define LEDC_GREEN_GPIO  (26)
#define LEDC_BLUE_GPIO   (27)