8-digit LED display MAX7219 support cascade 8-bit serial 3 IO port control module board E2B4 |



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8-digit LED display MAX7219 support cascade 8-bit serial 3 IO port control module board E2B4 |

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Месяц Минимальная цена Макс. стоимость Цена
Feb-22-2026 217.27 руб. 221.44 руб. 219 руб.
Jan-22-2026 176.4 руб. 180.31 руб. 178 руб.
Dec-22-2025 214.26 руб. 218.43 руб. 216 руб.
Nov-22-2025 212.74 руб. 216.62 руб. 214 руб.
Oct-22-2025 169.3 руб. 172.86 руб. 170.5 руб.
Sep-22-2025 209.34 руб. 213.49 руб. 211 руб.
Aug-22-2025 207.89 руб. 211.11 руб. 209 руб.
Jul-22-2025 205.64 руб. 209.22 руб. 207 руб.

Описание товара

8-digit LED display MAX7219 support cascade 8-bit serial 3 IO port control module board E2B4 |8-digit LED display MAX7219 support cascade 8-bit serial 3 IO port control module board E2B4 |8-digit LED display MAX7219 support cascade 8-bit serial 3 IO port control module board E2B4 |8-digit LED display MAX7219 support cascade 8-bit serial 3 IO port control module board E2B4 |


Download:Http://pan.baidu.com/s/1i3A9Eqp

Greatly save your microcontroller resources, do not need to open a timer scan, the liberation of the microcontroller to do more things! Only need to update the display data, pass a data!

MAX7219Digital tube display control module

MAX7219Is an integrated serial input / output common cathode display driver that connects the microprocessor with an 8-digit 7-segment digital LED display, or a bar graph display or 64 independent LEDs. Which includes an on-chip B-type BCD encoder, multi-scan circuit, segment word drive, but also a 8 * 8 static RAM used to store each data. Only one external register is used to set the segment current for each LED.

A convenient four-wire serial interface can be connected to all common microprocessors. Each data can be addressed at the time of updating without having to rewrite all the displays. The MAX7219 also allows the user to select or not code for each data.
The entire device contains a 150
ALow power off mode, analog and digital brightness control, a scan limit register allows the user to display 1-8 bits of data, and a test mode for all LEDs to emit light.

 

Only need three IO port can drive 8 digital tube! Digital tube display without flicker! Support cascade! The display is shown in the following figure:

PCB board four corners with copper stud fixed, can effectively prevent short circuit and other unexpected circumstances!   Digital tube for the 0.36-inch 4-bit common cathode digital tube   This module is compatible with 5V / 3.3V microcontroller (51 / AVR / STM32 .......)   Wiring instructions (to provide the program as an example, you can take any IO port, in the process of modifying the port can be defined):   VCC 5V   GND GND   DIN P00   CS P01   CLK P02   Precautions:   1.VCC and GND do not reverse, so as not to burn the chip   2.51 microcontroller P0 port need to pull on the resistor, if your microcontroller is not connected to the pull-up resistor, you can connect the data cable to other ports   Shipping list:   1.MAX7219 digital display module 1   2. Straight pin 5P   3. Bend pin 5P   4.MAX7219 English data sheet 1 copies   5.MAX7219 Chinese data sheet 1 copies   6.PDF format schematic diagram 1 copies  

 

7.51 single-chip driver 1 (single module display program and cascade module display program)


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