MAX7219 Dot Matrix Module 4-in-1 Display จอแสดงผลแบบ 4 in 1 LED Module for Arduino Microcontroller
รายละเอียด MAX7219 Dot Matrix Module 4-in-1 Display
Looking for easy to control LED matrix? This 4 in 1 Dot Matrix Display module should be for you. The whole module comes in four 8x8 RED common cathode dot matrices that are equipped with MAX7219 IC each. Great to display running text and pictures. It can be cascaded to a bigger dot matrix display, but do make sure the current of 5V is sufficient to support it.
Note: MAX7219 is operating at 5VDC, it can still interface with Raspberry Pi SPI pin (3.3V), you might need a proper level shifter. And we DO NOT recommend sharing the 5V from the Raspberry Pi GPIO pin. Anyway, it can still work with Raspberry Pi :)
คุณสมบัติ MAX7219 Dot Matrix Module 4-in-1 Display
- A single module can drive a total of 8 * 8 dot matrix overcast
- The module voltage: 5V
- Module Size: 12.8 cm (length) X 3.2 cm (width) X 1.3 cm (height)
- With 64 fixing screw holes, diameter : 3mm
- Module with input and output interfaces, support for cascading multiple modules
การต่อสาย Wiring Instructions MAX7219 Dot Matrix Module 4-in-1 Display:
The left side of the module to the input port, the right to an output port.
When the control of a single module, simply input port connected to CPU
When a plurality of cascaded modules, input and output termination CPU, an input terminal of the second output end of the first module a module, the first two modules of the input terminal of the three termination modules, and so on. ..
51 microcontrollers,
For example:
- VCC → 5V
- GND → GND
- DIN → P2.2
- CS → P2.1
- CLK → P2.0
ลิ้งค์ตัวอย่างวิธีการใช้งาน๊Usage Guide: https://www.makerguides.com/max7219-led-dot-matrix-display-arduino-tutorial/