TM1637 is a chip for driving 7-segment displays. There are several modules using this chip to form a 4 digit numerical display module. TM1637 has also keyboard input capability, but is not used in this module.
Features of TM1637 based 4 Bits Red Digital Tube LED Display Module:
Ease to use.
Ease of multiplexing.
Can use as a 4 digit display unit.
Can use as a clock display.
Applications of TM1637 based 4 Bits