8桁7セグメントMAX7219デジタルセグメントモジュール、7セクション8ビットLEDディスプレイチューブ（MCU/51/AVR/STM32、Raspberry Pi ESP用）

説明

• MAX7219 is an integrated serial input / output common-cathode display driver, which connects your microprocessor to a 7-segment digital LED display with 8 digits; MAX7219 digital display control module, you can use it for

• The module is compatible of 5V / 3.3V microcontroller; Only three IO ports are used to drive the eight digit display.

• Only three IO ports are used to drive the eight digit display. MAX7219 supports flicker free displays as well as cascading displays; PCV board four corners of the fixed copper stud, which can effectively precent short circuit accidents happen.

• Wiring instructions (a program, for example, you can pick any IO port definition can be modified in the program): VCC to 5V, GND to GND, DIN to P00, CLK to P02, CS to P01; Digital tube is 0.36 inch 4-bit integrated cathode digital tube; Common cathode.

• Note:VCC and GND do not reversed, it would burn the chip.51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines.