Electronics Module and Boards at affordable cost - Xbotics
This is a RoHS compliant I2C Serial LCD Daughter board that can be connected to a standard 16x2 or 20x4 Character Display Module that supports 4 bit mode. All Character Modules sold on our site support 4 bit mode, and nearly all commercially available 16x2 and 20x4 line character modules support it too.
The TM1637 4 Bits Digital Tube LED Display Module is an affordable solution for displaying the output data of your Arduino project. Though the data displayed is restricted by numbers still it allows users to display some characters too like A, B, C, etc.