The PCA9685 16-Channel 12-bit PWM Servo Motor Driver is an I2C-controlled module capable of driving 16 PWM outputs with 12-bit resolution (4096 steps) over just 2 I2C pins. Ideal for controlling servo motors, LEDs, and robotic arms with Arduino, Raspberry Pi, or ESP32, making it a perfect choice for multi-axis robotics and IoT automation.