PCA9685 PWM servo/LED driver with I2C interface and built-in clock Key benefits and features - Simplified control: I2C controlled driver with an on-board clock reduces wiring and external components, enabling easy multi-channel PWM control. - Flexible voltage compatibility: Conforms to the 5V standard, so a 3.3V microcontroller can drive it safely, while the outputs can drive up to 6V. This is useful when working with higher-voltage LEDs. - High-resolution, precise timing: 12-bit resolution per channel, providing about 4 microseconds of granularity at a 60 Hz update rate for smooth servo motion and fine PWM control. - Dense channel layout: 16 servo outputs arranged as 3-pin connectors in groups of 4, allowing you to plug in up to 16 servos at the same time. Performance and compatibility - Function: I2C controlled PWM driver with a built-in clock for reliable, synchronized channel timing. - Compatibility: 5V standard operation with 3.3V MCU compatibility; drives outputs up to 6V. - Channel density: 16 independent PWM channels suitable for multi-servo robotics, pan/tilt mechanisms, or LED arrays. - Precision: 12-bit resolution per channel ensures accurate position or brightness control at standard servo update rates. Use scenarios - Robotics and multi-servo projects: drive a small robotic arm or multi-joint robot requiring synchronized servo movements across up to 16 channels. - LED arrays and high forward-voltage LEDs: control white or blue LEDs with forward voltages around 3.4V and above at stable PWM levels. - Model and automation systems: implement coordinated PWM control for camera gimbals, linear actuators, or multi-channel lighting in hobby projects.