HiLetgo® 2pcs MAX7219 8x8 Dot Matrix Display Module MCU Control DIY kit Electronic Production Suite for Arduino

• A single module can drive an 8 * 8 common cathode lattice
• Only one external register is used to set the segment current of each LED
• Module with input and output interfaces, supports multiple modules cascade
• MAX7219 is an integrated serial input / output common cathode display driver
• A convenient four line serial interface can connect all the general-purpose microprocessors

Specifications: The module left as an input port to the output port on the right. The control of a single module, simply input port to the CPU. Module Operating voltage: 5V. Module size: 5 cm long X 3.2 cm wide X 1.5 cm high. With 4 fixed holes for easy installation. Multiple modules cascade input termination CPU, 2 output termination module, a module of the input of the input terminal, the output terminal of the first two modules of the first three modules, and so on ... For Example: 51 MCU VCC 5V GND GND DIN P22 CS P21 CLK P20 Note: VCC and GND is not reversed, it would burn the chip! When the 51 microcontroller P0 port control, must be connected to the pull-up resistor, it is recommended that the resistance of 4.7K--10K. Please lattice into the hole first seat, and then inserted into the round hole Block PCB board welding. Lattice word side facing the surface order from left to right pin 123456. PCB board 1 foot square pad. Electrolytic capacitors long-legged as positive, negative short legs; ceramic capacitor without the positive and negative points. Package Included: 2* MAX7219 8x8 Dot Matrix Display Module MCU Control DIY Suit