1. Driver Chip: MAX7219 2. Input Voltage: 3.7 to 5.3 V 3. Input Current: 30 mA 4. Display Dimensions: 42x24x12 (LxWxH) mm This 7 segment LED Display has 4 digits which are controlled by TM1637 Driver Chip. It requires only two connections to control this TM1637 4 Bits Digital Tube LED Display Module. Also thanks to the I2C Bus you can control it using only 2 wires, leaving more pins available on your Microcontroller to connect other things. The module is a 12-foot clock with four common anode tube (0.36 inch) display module for driver IC TM1637, only two signal lines can make the MCU control four 7-segment digital tubes. There are several modules using this TM1637 chip to form a 4 digit numerical display module. TM1637 has also keyboard input capability but is not used in this module. Pinout Description : GND – GND Vcc – 5V DIO – D2 CLK – D3 Features : Ease to use. Ease of multiplexing. Can use as a 4 digit display unit. Can use as a clock display. DIY clock project. 4 digit display unit. Electrical/Electronic projects. The counter project using 7 segment display. 4 M2 screws positioning holes for easy installation Package Includes 1 x 4-Digit Seven Segment Led Display Module
