Please according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.
This is a basic 4-digit 7-segment display module.
The display features double points in midle.
The decimal point per digit not active.
Module connecting to digital I/O on 2 pins.
For Arduino use library:TM1637.h
3 x LED Display Tube
include ‘TM1637.h’ // include the TM1637 library
TM1637 display(2, 3);// // initialize the library for pins 2, 3
3pcs 4 Digit LED Display Tube 7 Segments TM1637 50x19mm Red Clock Display Colon RobotDyn for Arduino – products that work with official for Arduino boards
Shipping:Standard Shipping about 10-25 business days