KC868-AP is a ESP32 16 channel PWM dimmer board. It use PCA9685. The PCA9685 component represents a PCA9685 12-bit PWM driver. It uses I²C Bus for communication. every channel output have MAX 3A driver chip. KC868-AP support use by ESPHome in home assistant. It also have digital input and relay output.
KC868-AP schematic download
KC868-AP ESP32 I/O pin define
KC868-AP ESPHome demo config for home assistant by wifi
KC868-AP ESPHome demo config for home assistant by ethernet
KC868-AP arduino source code demo
KC868-AP technical support forum