The full-color RGB dot matrix driver board is an for control board module specially designed for RGB full-color dot matrix In addition to being to drive RGB dot matrix independently, this module can also be used as an for control board. Very convenient and practical, the onboard chip is ATmega 328 chip The ISP interface is also led out on the board, and the corresponding I/0 port can be led out to the 328 at any time, but some IIC interfaces and power supply interfaces are led out. Support hardware URAT and IIC communication methods 6-bit color support; Support hardware 16MHZ PWM Without any additional circuits Dedicated GPIO and ADC interface 24 constant current channels, each channel current can reach 100mA 8 source drive constant current channels, each channel current can reach 500mA Working power supply: +5V to +5.3V. Working current: 300mA max. Working temperature range: -10~+50 colour: red Material: PCB Size: 14.5x9x1.25cm Package Contents: 1 x Driver Board(not include Dot Matrix) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.