mirror of
https://github.com/RobTillaart/Arduino.git
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145 lines
4.3 KiB
C++
145 lines
4.3 KiB
C++
#pragma once
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//
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// FILE: HT16K33.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.3.6
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// DATE: 2019-02-07
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// PURPOSE: Arduino Library for HT16K33 4x7segment display
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// http://www.adafruit.com/products/1002
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// URL: https://github.com/RobTillaart/HT16K33.git
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#include "Arduino.h"
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#include "Wire.h"
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#define HT16K33_LIB_VERSION (F("0.3.6"))
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// Characters
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#define HT16K33_0 0
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#define HT16K33_1 1
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#define HT16K33_2 2
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#define HT16K33_3 3
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#define HT16K33_4 4
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#define HT16K33_5 5
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#define HT16K33_6 6
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#define HT16K33_7 7
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#define HT16K33_8 8
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#define HT16K33_9 9
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#define HT16K33_A 10
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#define HT16K33_B 11
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#define HT16K33_C 12
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#define HT16K33_D 13
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#define HT16K33_E 14
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#define HT16K33_F 15
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#define HT16K33_SPACE 16
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#define HT16K33_MINUS 17
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#define HT16K33_NONE 99
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class HT16K33
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{
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public:
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HT16K33(const uint8_t address, TwoWire *wire = &Wire); // 0x70 .. 0x77
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#if defined (ESP8266) || defined(ESP32)
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bool begin(uint8_t sda, uint8_t scl);
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#endif
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bool begin();
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void reset();
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bool isConnected();
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// default _cache is true as it is ~3x faster but if one has noise
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// on the I2C and wants to force refresh one can disable caching
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// for one or more calls.
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void clearCache();
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void cacheOn() { _cache = true; };
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void cacheOff() { _cache = false; };
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void refresh(); // force writing of cache to display
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void displayOn();
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void displayOff();
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void brightness(uint8_t value); // 0 .. 15
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void blink(uint8_t value); // 0 .. 3 0 = off
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// 0,1,2,3,4 digits - will replace suppressLeadingZeroPlaces
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void setDigits(uint8_t value);
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// 0 = off, 1,2,3,4 digits space instead of 0
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void suppressLeadingZeroPlaces(uint8_t value); // will be obsolete
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void displayClear();
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bool displayInt(int n); // -999 .. 9999
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bool displayHex(uint16_t n); // 0000 .. FFFF
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// Date could be {month.day} or {day.hour} . as separator
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// Time could be hh:mm or mm:ss or ss:uu (hundreds : as separator
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// colon displays : lz = Leading Zero or space
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bool displayDate(uint8_t left, uint8_t right, bool lz = true); // 00.00 .. 99.99
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bool displayTime(uint8_t left, uint8_t right, bool colon = true, bool lz = true); // 00:00 .. 99:99
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bool displaySeconds(uint16_t seconds, bool colon = true, bool lz = true); // 00:00 .. 99:99
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bool displayFloat(float f, uint8_t decimals = 3); // -999 .. 0.000 .. 9999
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void display(uint8_t *array); // array with 4 elements
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void display(uint8_t *array, uint8_t point); // point = digit with . (0..3)
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void displayColon(uint8_t on); // 0 = off
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void displayRaw(uint8_t *array, bool colon = false); // max control
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// from issue #21 - used in special layout :88:8'8 normal = 88:88 or 8.8.8.8
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// value = 0 ==> all off.
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// 2 = colon
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// 4 = upper left point, left of the 1st digit
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// 8 = lower left point, left of the 1st digit
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// 16 = upper point between 3rd and 4th digit
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void displayExtraLeds(uint8_t value);
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bool displayVULeft(uint8_t value); // 0..8
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bool displayVURight(uint8_t value); // 0..8
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// DEBUG
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void displayTest(uint8_t del);
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// array as numbers
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void dumpSerial(uint8_t *array, uint8_t point);
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// display cache in HEX format
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void dumpSerial();
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uint8_t getAddress() { return _address; };
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uint8_t getAddr() { return getAddress(); }; // TODO obsolete in future
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// EXPERIMENTAL
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bool getOverflow() { return _overflow; };
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void clrOverflow() { _overflow = false; };
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bool displayFixedPoint0(float f);
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bool displayFixedPoint1(float f);
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bool displayFixedPoint2(float f);
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bool displayFixedPoint3(float f);
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private:
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void _refresh();
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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 point);
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uint8_t _address;
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uint8_t _displayCache[5]; // for performance
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bool _cache = true;
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uint8_t _digits = 0;
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uint8_t _bright;
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TwoWire* _wire;
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// EXPERIMENTAL
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bool _overflow = false;
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};
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// -- END OF FILE --
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