1) 25ron varianta cu un singur modul
2) 60ron varianta cu 4 module gata conectate

Descriere
A single module can drive a 8x8 dot matrix common cathode
Operating Voltage: 5V
Dimensions: 12.8X12.8X1.3cm/
Fixing screws with 64 holes with a diameter 3mm
Module with input and output interfaces, support for cascading multiple modules

Wiring Instructions:
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
 contiut:
1 x  MAX7219 Microcontroller 4 In 1 Display with 5P Line Dot Matrix Module for Arduino