Description:
8×8 matrix consists of 64 dots or pixels. There is a LED for each pixel and these LEDs are connected to a total of 16 pins. Generally, there are two types of dot matrix – a common cathode and common anode. They look almost the same in appearance.
This module is based on the MAX7219 chip which is a compact, serial input common-cathode driver that interfaces microcontrollers (µPs) to 7-segment numeric LED displays of up to 8 digits, bar-graph displays, or 64 individual LEDs. All common microcontrollers can be connected to this module by using a 4-wire serial interface. Each output can be addressed without refreshing the entire display. This module requires only 3 I/O lines for driving the display, making it ideal for your microcontroller projects. It Included on-chip are a BCD code-B decoder, multiplex scan circuitry, segment and digit drivers, and an 8x8 static RAM that stores each digit. Only one external resistor is required to set the segment current for all LEDs.
Application:
IoT
Smart Home
Remote Monitoring
etc.
Features:
1. The Single Module Can Drive a 8 * 8 Common Cathode Lattice
2. Module Voltage: 5V
3. Module Size: 32mm x 32mm x 13mm
4. With 4 Fixing 3mm Screw Holes
5. Input and Output Interfaces, Support for Cascading Multiple Modules
Wiring Instructions:
1. The left side of the module as an input port, an output port on the right.
2. When the control of a single module, simply input port connected to CPU
3. When cascading multiple modules, the first 1 input termination module of the CPU, the first output end 2 input modules, the first 2 output modules terminating the first three input modules, and so on.