Features High-Quality Control Chip: Features a robust control chip that integrates a BCD encoder, scanning circuit, and drive circuit for reliable performance Efficient Data Handling: Offers internal static RAM, enabling data addressing during updates without affecting other displays Consistent Brightness Control: Equipped with integrated analog and digital brightness control for uniform brightness across all display points Features: 1、Adopt control chip, internally integrate BCD encoder, scanning circuit and drive circuit 2、Internal integrated static RAM, each data can be addressed during update without changing all displays 3、Integrated analog and digital brightness control, consistent brightness display at each point 4、Integrated scanning circuit inside the chip, does not occupy system resources 5、The chip only occupies 3 IO ports, which can be cascaded Specification: Item Type: Dot Matrix Module Fixing Hole: Approx. m / 0.1in Voltage: 5V Hole Spacing: 1000 x 1000mil (approx. 25.4 x 25.4mm / 1 x 1in) LED: 8 x 8 common-cathode dot matrix, removable Port: SPI can be connected Package List: 2 x Module Package List 2 x Module