mirror of
https://github.com/RobTillaart/Arduino.git
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56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
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//
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// FILE: HT16K33.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.1.2
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// DATE: 2019-02-07
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// PURPOSE: Class for HT16K33 7segment I2C display
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// http://www.adafruit.com/products/1002
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// URL: https://github.com/RobTillaart/Arduino.git
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//
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// Released to the public domain
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//
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// TODO: negative values
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//
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#ifndef HT16K33_h
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#define HT16K33_h
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#include "Arduino.h"
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#include "Wire.h"
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#define HT16K33_LIB_VERSION "0.1.2"
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class HT16K33
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{
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public:
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HT16K33();
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void begin(const uint8_t address); // 0x70 .. 0x77
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void displayOn();
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void displayOff();
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void brightness(uint8_t val); // 0 .. 15
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void blink(uint8_t val); // 0 .. 3 0 = off
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void displayClear();
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void displayInt(int n); // 0000 .. 9999
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void displayHex(uint16_t n); // 0000 .. FFFF
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void displayTime(uint8_t left, uint8_t right); // 00:00 .. 99:99
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void displayFloat(float f); // 0.000 .. 9999.
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void display(uint8_t *arr); // array with 4 elements
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void display(uint8_t *arr, uint8_t pt); // pt = digit with . (0..3)
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void displayColon(uint8_t on); // 0 = off
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void displayTest(uint8_t del);
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private:
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void writeCmd(uint8_t cmd);
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void writePos(uint8_t pos, uint8_t mask);
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void writePos(uint8_t pos, uint8_t mask, bool pnt);
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uint8_t _addr;
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uint8_t _displayCache[5]; // for performance
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};
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#endif
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// -- END OF FILE --
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