2db 4bits digitális LED TM1637 modul Arduino

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The module is a 12 foot with a clock point four common anode tube (0.36 in.) display module for driver IC TM1637, only two signal lines can make the MCU control 4 8 digital tube.
Module Features:
Display common anode for the four red LED
Digital tube 8 gray adjustable
Level control interface for 5V or 3.3V
4 M2 screws positioning holes for easy installation
Size:42X24X12mm
Interface 4 digital display module: (the last picture show)
Control Interface : A total of four pins (GND, VCC, DIO, CLK), GND to ground , VCC is the power supply , DIO of data input and output pin , CLK is the clock signal pin
2PCS 4Bits Digital Tube LED Display TM1637 Module With Clock Display for Arduino

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