The module is based on a decimal point display module, it displays four digital tube (0.36 inches), and driver IC is TM1637, only two signal lines can make MCU control four Digit 8-segment LED. Can be used to display decimal, letters and so on.
Features:
- Compatible with Arduino UNO, MEGA2560, Leonardo;
- 4 digit red alpha-numeric display with decimal point;
- 8 adjustable gray;
- Working voltage: 3.3~5.5V DC;
- Working current: 80mA (MAX);
- Applications: Voltage meter display, Ultrasonic distance measurement display

General
Model	N/A
Quantity	1Piece
Form Color	Blue + Black
Material	PCB + Alloy + Plastic
Specification
Screen Type	LED
Screen Size	0.36inch
Resolution	N/A
Working Voltage	3.3~5.5V
Working Current	80mA
English Manual / Spec	Yes
Download Link	http://pan.baidu.com/s/1kT6xZyJ

Dimensions & Weight
Dimensions	1.85 in x 0.94 in x 0.51 in (4.7 cm x 2.4 cm x 1.3 cm)
Weight	0.27 oz (7.6 g)