LED DISPLAY 4 DIGITS RED

Description:
4-digit 7-segment LED module with a serial interface. The module has a red 7-segment display with 4 digits and two 74HC595 shift registers on the back. The shift registers communicate via an SPI and require only three pins to function, clock, latch and data, which makes the display very easy to use with a microcontroller.

Feature

• 4-digit bright red digital display
• Four 74HC595 SMD drives and digital tube were designed with each band limiting resistor, to ensure uniform brightness.
• Easy to install with 4 screw holes 3mm
• Static drive in the digital is unchanged, and SCM has not been refreshed. Non-dynamic is scanned to save MCU system resources.
• Simple interface, VCC +, GND -, SDI data, Shift clock SCLK, latch LOAD, only three wire interface is connected with the microcontroller to save microcontroller IO.

Specification

• Input Voltage: 3.3 ~ 5V
• Operating current: 100mA
• Drives chip: 74HC595
• Simple interface:
  – VCC +
  – GND –
  – SDI data
  – Shift clock SCLK
  – Latch LOAD
• Size (mm): 64 * 25
• Character colour: Red

Tutorial