4 Bits TM1637 Digital Tube LED Clock Display Module
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.
· Display common anode for the four red LED
· Digital tube 8 gray adjustable
· Level control interface for 5V or 3.3V
· Control Interface : A total of four pins (GND, VCC, DIO, CLK)
· Positioning holes: 4 M2 screws positioning hole diameter is 2.2mm,
· Size: 24.3x1.1x41.9mm
· Weight: 6g.