Why did you make it?

To satisfy electronic DIY hobbyists, we developed this MAX7219 Dot Matrix Module. It uses the Max7219 chip which do a great job on saving of MCU I/O. It can not only control each point individually, but also can be extended without limitation to meet your requirements on LED Sign, Team Logo and so on.

Product Feature

• Seamless splicing and so that the dot matrix can be flexible spliced .
• Common cathode with bright dot matrix(8*8), display fresh and brilliant picture.
• A screen roll freely, to achieve the perfect picture display

• Since the master chip is used in Max7219 to- make product have the following characteristics:

  1).The transmission efficiency of up to 10MHz.

  2).Can be individually controlled for each point.

  3).Lowest power consumption of 450uA (one module).

  4).Power-on reset automatically display full black

  5).Serial communication, a great saving of MCU IO, also can be extended To expand the program with SPI.

  6).For each screen brightness control, by setting the Max7219 instructions.

ABSOLUTE MAXIMUM RATINGS

• Voltage (with respect to GND) V+: -0.3V to 6V
• DIN, CLK, LOAD, CS: -0.3V to 6V Current
• DIG0-DIG7 Sink Curr: 500mA
• SEGA-G, DP Source Current: 100mA
• Continuous Power Dissipation (TA=+85°C) Narrow Plastic DIP: 0.87W
• Wide SO: 0.76W
• Narrow CERDIP: 1.1W
• Operating Temperature Ranges(Max7219) MAX7219: 0°C to +70°C
• Storage Temperature Range: -65°C to +160°C
• Lead Temperature (soldering, 10sec): +300°C

PIN Define

• CLK: Serial-Clock Input. 10MHz maximum rate.
• CS: Chip-Select Input. Serial data is loaded into the shift register while CSis low.
• DIN: Serial-Data Input. Data is loaded into the internal 16-bit shift register on CLK’s rising edge
• DOUT: Serial-Data Output. The data into DIN is valid at DOUT 16.5 clock cycles later.
• VCC: Positive Supply Voltage. Connect to +5V.
• GN:D Ground