All electronics ship with US style plugs.You may need a voltage converter or a plug adapter.
Special Features
MAX7219 is an integrated serial input / output common cathode display driver. It connects a microprocessor to an 8-digit 7-segment digital LED display. It can also be connected to a bar graph display or 64 independent LEDs. It includes an on-chip B-type BCD encoder, multiple scanning loops, segment word drivers, and an 8 * 8 static RAM to store every data. There is only one external register to set the segment current of each LED.
A convenient four-wire serial interface can be connected to all general-purpose microprocessors. Each data can be addressed without updating all displays when updated. The MAX7219 also allows the user to select whether to encode or not each data.
The entire device includes low-power shutdown mode, analog and digital brightness control, a scan limit register that allows the user to display 1-8 bits of data, and a detection mode that lets all LEDs emit light.
Only 3 IO ports are needed to drive 8-bit digital tube! No flickering when the digital tube is displayed! Support cascading! The use of copper studs can effectively avoid accidents such as short circuits!
The digital tube is a 0.36 inch 4-bit integrated common cathode digital tube. This module is compatible with 5V / 3.3V microcontroller (51 / AVR / STM32 .......). Wiring instructions (take the provided program as an example, you can connect any IO port, modify the port definition in the program):VCC- 5V; GND-GND; DIN-P00; CS-P01; CLK-P02.
Description
Type: 8 bit MAX7219 digital tube module
Material: PCB + Electronic Components
Power: 5V
Size: 82*15*12mm(L*W*H)
Shell Color: Blue & black
Net Weight: 13g
LED Color: Red
Package included:
2 X MAX7219 Digital Tube For Arduino
Note:
1. Do not connect VCC and GND reversely to avoid burning the chip.
2. 51 MCU P0 port needs to be connected with pull-up resistor. If your microcontroller is not connected with pull-up resistor, you can connect the data line to other ports.
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