The module is a 12-pin with the clock point of the 4-digit positive digital tube (0.36 inches) of the display module, the driver chip TM1637, just two signal lines can make single-chip control 4 segment digital tube.
The display device is a 4-digit male red digital tube
Digital tube 8 gray scale adjustable
The control interface level can be 5V or 3.3V
4 M2 screw positioning holes for easy installation
Control interface :
a total of four pins (GND, VCC, DIO, CLK), GND for the ground, VCC for the power supply, DIO for the data input and output feet, CLK clock signal pin;
Digital tube :
4-bit common anode with 0.36-inch digital dot, the red word highlighted;
Positioning hole :
4 M2 screw positioning hole, aperture 2.2mm, the module easy to install and locate, to achieve the combination between modules;
Library routines overview:
1. ClockDisplay: use the motherboard on the MCU timer 1 to count, and let 4 digital display.
2. NumberFlow: 0 ~ 9, A, b, C, d, E, F and other 16 characters from right to left flow.
3. StopWatch: use the motherboard MCU timer 1 to count, with the key to achieve stopwatch function.