68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
#ifndef SegmentDisplay_h
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#define SegmentDisplay_h
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#include "Arduino.h"
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/**
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* Drives up to 8 digits using two 8-bit shift registers.
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*
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* Pushes out the segment bits first and the display selection
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* second: connect the display select register first and chain the
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* segment register to it's output.
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*
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* Least significant bit as defined in SegmentDisplayChars.h:
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* - Last digit
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* - Segment A
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**/
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// Comment to use shiftOut. Set clockPin and dataPin instead.
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//#define SDSupportSPI
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class SegmentDisplay
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{
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public:
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void begin();
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void end();
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void writeNumber(int value);
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void writeText(char* value);
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int getDigits() { return digits; }
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void setDigits(int value) { digits = value; }
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int getLatchPin() { return latchPin; }
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void setLatchPin(int value) { latchPin = value; }
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#if defined(SDSupportSPI)
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long getClockSpeed() { return clockSpeed; }
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void setClockSpeed(long value) { clockSpeed = value; }
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#endif
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#if !defined(SDSupportSPI)
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int getClockPin() { return clockPin; }
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void setClockPin(int value) { clockPin = value; }
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int getDataPin() { return dataPin; }
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void setDataPin(int value) { dataPin = value; }
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#endif
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protected:
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inline void writeDigit(unsigned char value, unsigned char digitMask);
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inline void writeDisplay(unsigned char characterMask, unsigned char digitMask);
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private:
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int digits = 6;
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int latchPin = SS;
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#if defined(SDSupportSPI)
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long clockSpeed = 20000000;
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#endif
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#if !defined(SDSupportSPI)
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int clockPin = SCK;
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int dataPin = MOSI;
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#endif
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};
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#endif |