2017 Holtek New Product Presentation

8×8 RGB LED Matrix Module BMS01030

Characteristics

■ Uses the Holtek HT16D35A device ■ High accuracy constant current and memory mapping LED display ■ 64-step Gray Scale and 64 LED illumination levels using software

controlled PWM circuitry

■ Provides constant current output control using external resistors for each row output terminal

■ A serial interface is provided to allow the device to receive instructions for its command mode and data mode

BMS01030 Features ■ Operating voltage : VDD = 2.7V~5.5V ■ 3-wire SPI serial interface ■ 64 RGB LED display ■ PWM duty : 64 levels for each dot ■ Auto fade function ■ Auto scrolling function : up, down, left, right

E08

2017 Holtek New Product Presentation

Circuit Diagram

E08

Application Example

Pin Description ■ GND : negative power supply ■ VDD : positive power supply ■ CLK : SPI CLK pin ■ DIO : SPI MOSI pin ■ CSB : SPI CSB pin

Arduino example code available! Connect 4 wires to the Arduino UNO, download the example code, and run the code freely.