Eight seven-segment display module on MAX7219

The display of eight seven-segment indicators with a dot is a convenient means for outputting digital information. This module can be used in projects that require data visualization (electric oven temperature display, timer, clock, etc.).

The module is based on the MAX7219 chip from Maxim Integrated. The MAX7219 is a compact common cathode LED driver. The driver is designed to connect the display of eight seven-segment indicators with the microcontroller and control the dynamic indication. The module is connected to the microcontroller device using the SPI bus. The board has holes for installing a pin header. If necessary, up to 8 such displays can be connected in series.

The module is connected using 5 pins:

VC: 5V power supply
GND: ground
DIN: used as information signal
CS: transmit data via SPI interface
CLK: clock signals
The module can be powered by an external power supply, an Arduino board, or other microcontroller devices. The display supply voltage is 5 V. To work with this module in the Arduino IDE development environment, you must use the "LedControl.h" library.

Please note that power reverse will destroy the MAX7219 chip.

Pin connectors are not included with the module.

Module Specifications:

Chip MAX7219
Supply voltage, V 4 ... 5.5
Current of one indicator segment, mA 30 ... 40
Glow color red