Feature:
1. Integrated Display Driver: The MAX7219 matrix module is a versatile serial input/output common cathode display driver that connects microcontrollers with 8-bit digital 7-segment LED displays, bar graph displays, or 64 independent LEDs.
2. Convenient Serial Interface: The module features a convenient four-wire serial interface that can connect to any common microcontroller. Each data can be addressed without rewriting the entire display, making it efficient for updating specific segments.
3. Flexible Configuration Options: With an on-chip B-type BCD encoder, multiple scan circuits, and segment drivers, the MAX7219 allows users to select encoding or non-encoding for each data. This flexibility enables customization according to specific display requirements.
4. Low Power Consumption: The device includes a low-power shutdown mode with a current consumption of only 150μA. It also provides analog and digital brightness control, allowing users to optimize power usage while maintaining desired display visibility.
5. Versatile Display Control: The MAX7219 offers a scan-limit register that allows users to display 1-8 bits of data, providing flexibility in choosing the desired number of digits to be shown. Additionally, it features a detection mode that activates all LEDs, enabling easy testing and verification.
Specification:
A single module can drive an 8*8 common cathode matrix
Module working voltage: 5V
Module size: 5x3.2x1.5cm/1.97*1.26*0.59in
With 4 fixing screw holes, the hole diameter is 3mm, which can be fixed by M3 copper pillar
Module with input and output interface, support multiple module cascade
Wiring instructions:
1. The left side of the module is the input port, and the right side is the output port.
2. When controlling a single module, you only need to connect the input port to the CPU
3. When multiple modules are cascaded, the input terminal of each module is connected to the CPU, the output terminal is connected to the input terminal of the second module, the output terminal of the second module is connected to the input terminal of the third module, and so on...
Take 51 single chip microcomputer as an example:
VCC-5V
GND-GND
DIN-P22
CS-P21
CLK-P20
Note:
Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you!
Please allow 1-2cm measuring deviation due to manual measurement.
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