with this new 3 Digit 2.3 inch 7 segments SPI protocol Display module using 74HC595 as a Serial to parallel Data save the required IO pins needed to drive all this number of pins and will display large size 7 segment 3 digit numbers. 2.3 Inch height, which can be visible over large distance. More digit can be connected serially to each other easily trough connector.
This circuit is a 3 digit seven segment big display using 74HC595 shift register for easy control by micro-controller. useful circuit to make Timer, stop watch, Score Board, Token No, Vehicle counter at parking and many other applications.
Supply 12V DC For Display
Supply 5V For logic 75HC595
Inputs data TTL signals just 3 pins (Data,Clock,Latch)
very easy to control it using Arduino or any other microcontroller(Sample code available).