20pcs TM1637 4 Bits Digital LED Display Module 7 Segment 0.36 Inch RED Anode Tube Four Serial Driver Board For

Introduction The module is a 12 pin display module with a 4 point common digital tube 0 36 inch with a clock point The driver chip is TM1637 It only needs 2 signal lines to enable the MCU to control the 4 bit 8 Segment digital tube Features Digital Tube 4 digit common anode with a 0 36 inch digital tube with a score point highlighted in redPositioning hole 4 M2 screw positioning holes the hole diameter is 2 2mm which makes the module easy to install and position and realize the module combinationDigital tube 8 level grayscale adjustableControl interface level can be 5V or 3 3VSize 42 x 24 x 12 mmWeight 8g ProjectMinimum valueTypical valueMaximumUnitVoltage3 355 5VDCCurrent 5V 3080mAPin Description GND groundVCC the power supplyDIO the data input and output pinCLK the clock signal pin Overview of the library routines 1 Clock Display Use the timer 1 of the MCU on the motherboard to time and let the 4 digit display 2 Number Flow 0 9 A b C d E F and other 16 characters flow from right to left 3 StopWatch Use the timer 1 of the MCU on the motherboard to time and use the button to realize the stopwatch function Experiment equipment An compatible motherboard Catduino not familiar with open source hardware can be understood as the Atmega328P microcontroller development board and a mini USB cable 1 4 digit digital tube display module 4 male to female DuPont lines for connecting the control interface of the module and the Catduino developme