Item Name: MAX7219 Dot Matrix Module 4 in 1 Display MCU Microcontroller Driver Board. Smart TV Box Android Quad Core HDMI 1080P Wifi Streaming Media Player UK
Feature:
1. MAX7219 is an integrated serial input/output common cathode display driver. It connects microprocessor with 8-digit 7-segment digital LED display, and can also connect bar chart display or 64 independent LED.
2. It includes a B-type BCD encoder on chip, a multi-channel scanning loop, a segment driver, and an 8*8 static RAM to store each data. Only one external register is used to set the segment current of each LED.
3. A convenient four-wire serial interface can connect all general purpose microprocessors. Each data can be addressed without rewriting all the displays when updated. MAX7219 also allows users to choose to encode or not encode each data.
4. The whole device consists of a 150 uA low power off mode, analog and digital brightness control, a scan limit register that allows users to display 1-8 bits of data, and a detection mode that allows all LEDs to emit light.
5. Only three IO ports are needed to drive one lattice. Dot matrix display without flicker. Support cascade.
Specification:
A single module can drive an 8*8 Common Cathode
Module operating voltage: 5V
Module size: 128mm*32mm*13mm/5.03*1.25*0.51''
Display: Red
With 64 fixed screw holes, aperture 3 mm
Modules with input and output interfaces support multiple modules cascade
Packaging weight: 49g
Wiring Description:
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 end of the first module is connected to the CPU, the output end is connected to the input end of the second module, and the output end of the second module is connected to the input end of the third module, and so on.
Take 51 MCU as an example:
VCC-5V
GND-GND
DIN-P2.2
CS-P2.1
CLK-P2.0
Note:
Please allow 1-3mm differs due to manual measurement.
Due to the different display and different light, the picture may not show the actual color of the item. Thanks for your understanding.
