4-Digital, 7-Segment Red LED Display Module Controlled by 4 x 74HC595
Overview
Features
Standard 5135 enclosure, easy to install on devices. The mounting hole dimensions: 72x39mm
All the Displays are controlled by 4 x 74HC595 ICs and are Current limited
Statically driven, MCU need not be refreshed when the number does not change thus saving MCU resources
Simple interface: +5V, -5V, data, data shift CLK, latch LCK, only need 3 wires to MCU, save resources
Can connect in series, e.g. four displays, can connect one by one, and only connect the three wires of the first display to MCU is enough. (VCC, GND, DATA, CLK clock, LCK lock)
If you don’t need enclosure, there are four screw holes, easy to install