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README.md

Arduino SevenSeg

Getting Started

A sample code for a four-digit common anode display is shown below:

#include <SevenSeg.h>

SevenSeg disp(11,7,3,5,6,10,2);

const int numOfDigits=4;
int digitPins[numOfDigits]={12,9,8,13};

void setup() {
  
  disp.setDigitPins(numOfDigits, digitPins);

}  

void loop() {

    disp.write(13.28);

}

Key functionality includes:

  • Supports arbitrary number of digits and multiple displays
  • Supports displays with decimal points, colon and apostrophe
  • Supports common anode, common cathode and other hardware configurations
  • High level printing functions for easily displaying:
    • Numbers (integers, fixed point and floating point)
    • Text strings
    • Time (hh:mm) or (mm:ss)
  • Automatic multiplexing with adjustable refresh rate
  • Adjustable brightness through duty cycle control
  • Use of interrupt timers for multiplexing in order to release resources, allowing the MCU to execute other code
  • Leading zero suppression (e.g.\ 123 is displayed as 123 rather than 0123 when using 4 digits)
  • No shadow artifact

For further information, please see the attached user guide.

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Arduino 7-segment display library

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