Revision 0:3cf7c2683c3a, committed 2013-02-25

Comitter:

shimniok

Date:

Mon Feb 25 05:48:10 2013 +0000

Child:

1:959715b1d042

Commit message:

Things seem to be working now.

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DigoleSerialDisp.cpp	Mon Feb 25 05:48:10 2013 +0000
@@ -0,0 +1,556 @@
+/** Digole Serial Display library
+ *
+ * @Author: Digole Digital Solutions : www.digole.com ported to mbed by Michael Shimniok www.bot-thoughts.com
+ */
+ 
+#include "mbed.h"
+#include "DigoleSerialDisp.h"
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+
+char null = 0;
+
+
+// that resetting the Arduino doesn't reset the LCD, so we
+// can't assume that its in that state when a sketch starts (and the
+// LiquidCrystal constructor is called).
+
+//UART function
+
+char buf[128];
+char tmp[128];
+
+DigoleSerialDisp::DigoleSerialDisp(PinName sda, PinName scl, uint8_t address):
+    _device(sda, scl)
+{
+    _address = (address<<1);
+    _device.frequency(100000);
+    _Comdelay=70;
+}
+
+size_t DigoleSerialDisp::write(const char x)
+{
+    _device.write(_address, (char *) &x, 1);
+
+    return 1;
+}
+
+size_t DigoleSerialDisp::write(const char *str) 
+{
+    if (str == NULL) return 0;
+    return write(str, strlen(str));
+}
+    
+size_t DigoleSerialDisp::write(const char *buffer, size_t size)
+{
+    int len = 0;
+    if (buffer != NULL) {
+        _device.write(_address, (char *) buffer, size);
+        len = size;
+        delay(7);
+    }
+    return len;
+}
+
+
+size_t DigoleSerialDisp::print(const char c)
+{
+    buf[0] = 'T';
+    buf[1] = 'T';
+    buf[2] = c;
+    buf[3] = 0;
+    write(buf);
+    write(null);
+    return 1;
+}
+
+size_t DigoleSerialDisp::print(const char s[])
+{
+    int len = strlen(s);
+
+    if (s == NULL) return 0;
+
+    buf[0] = 'T';
+    buf[1] = 'T';
+    buf[2] = 0;
+    strncat(buf, s, 125);
+    write(buf);
+    write(null);
+    return len;
+}
+
+size_t DigoleSerialDisp::println(const char s[])
+{
+    return print(s);
+}
+
+/*
+ Print.cpp - Base class that provides print() and println()
+ Copyright (c) 2008 David A. Mellis.  All right reserved.
+ 
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ 
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+ 
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ 
+ Modified 23 November 2006 by David A. Mellis
+ */
+
+size_t DigoleSerialDisp::print(unsigned char b, int base)
+{
+  return print((unsigned long) b, base);
+}
+
+size_t DigoleSerialDisp::print(int n, int base)
+{
+  return print((long) n, base);
+}
+
+size_t DigoleSerialDisp::print(unsigned int n, int base)
+{
+  return print((unsigned long) n, base);
+}
+
+size_t DigoleSerialDisp::print(long n, int base)
+{
+  if (base == 0) {
+    return write(n);
+  } else if (base == 10) {
+    if (n < 0) {
+      int t = print('-');
+      n = -n;
+      return printNumber(n, 10) + t;
+    }
+    return printNumber(n, 10);
+  } else {
+    return printNumber(n, base);
+  }
+}
+
+size_t DigoleSerialDisp::print(unsigned long n, int base)
+{
+  if (base == 0) return write(n);
+  else return printNumber(n, base);
+}
+
+size_t DigoleSerialDisp::print(double n, int digits)
+{
+  return printFloat(n, digits);
+}
+
+size_t DigoleSerialDisp::println(unsigned char b, int base)
+{
+  size_t n = print(b, base);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(int num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(unsigned int num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(long num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(unsigned long num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(double num, int digits)
+{
+  size_t n = print(num, digits);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(void) 
+{
+    return 1;
+}
+
+// Private Methods /////////////////////////////////////////////////////////////
+
+size_t DigoleSerialDisp::printNumber(unsigned long n, uint8_t base) {
+  char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
+  char *str = &buf[sizeof(buf) - 1];
+
+  *str = '\0';
+
+  // prevent crash if called with base == 1
+  if (base < 2) base = 10;
+
+  do {
+    unsigned long m = n;
+    n /= base;
+    char c = m - base * n;
+    *--str = c < 10 ? c + '0' : c + 'A' - 10;
+  } while(n);
+
+  return write(str);
+}
+
+size_t DigoleSerialDisp::printFloat(double number, uint8_t digits) 
+{ 
+  size_t n = 0;
+  
+  if (isnan(number)) return print("nan");
+  if (isinf(number)) return print("inf");
+  if (number > 4294967040.0) return print ("ovf");  // constant determined empirically
+  if (number <-4294967040.0) return print ("ovf");  // constant determined empirically
+  
+  // Handle negative numbers
+  if (number < 0.0)
+  {
+     n += print('-');
+     number = -number;
+  }
+
+  // Round correctly so that print(1.999, 2) prints as "2.00"
+  double rounding = 0.5;
+  for (uint8_t i=0; i<digits; ++i)
+    rounding /= 10.0;
+  
+  number += rounding;
+
+  // Extract the integer part of the number and print it
+  unsigned long int_part = (unsigned long)number;
+  double remainder = number - (double)int_part;
+  n += print(int_part);
+
+  // Print the decimal point, but only if there are digits beyond
+  if (digits > 0) {
+    n += print("."); 
+  }
+
+  // Extract digits from the remainder one at a time
+  while (digits-- > 0)
+  {
+    remainder *= 10.0;
+    int toPrint = int(remainder);
+    n += print(toPrint);
+    remainder -= toPrint; 
+  } 
+  
+  return n;
+}
+
+/*---------functions for Text and Graphic LCD adapters---------*/
+void DigoleSerialDisp::disableCursor(void) 
+{
+    write("CS");
+    write(null);
+}
+
+void DigoleSerialDisp::enableCursor(void) 
+{
+    write("CS");
+    write(1);
+}
+
+void DigoleSerialDisp::drawStr(uint8_t x, uint8_t y, const char *s) 
+{
+    write("TP");
+    write(x);
+    write(y);
+    write("TT");
+    write(s);
+    write(null);
+}
+
+void DigoleSerialDisp::setPrintPos(uint8_t x, uint8_t y, uint8_t graph) 
+{
+    if (graph == _TEXT_) {
+        write("TP");
+        write(x);
+        write(y);
+    } else {
+        write("GP");
+        write(x);
+        write(y);
+    }
+}
+
+void DigoleSerialDisp::clearScreen(void) 
+{
+    //write(null);
+    write("CL");
+}
+
+void DigoleSerialDisp::setLCDColRow(uint8_t col, uint8_t row) 
+{
+    write("STCR");
+    write(col);
+    write(row);
+    write("\x80\xC0\x94\xD4");
+}
+
+void DigoleSerialDisp::setI2CAddress(uint8_t add) 
+{
+    write("SI2CA");
+    write(add);
+    _address = (add<<1);
+}
+
+void DigoleSerialDisp::displayConfig(uint8_t v) 
+{
+    write("DC");
+    write(v);
+}
+
+void DigoleSerialDisp::preprint(void) 
+{
+    //print("TT");
+}
+
+/*----------Functions for Graphic LCD/OLED adapters only---------*/
+void DigoleSerialDisp::drawBitmap(uint8_t x, uint8_t y, uint8_t w, uint8_t h, const uint8_t *bitmap) {
+    uint8_t i = 0;
+    if ((w & 7) != 0)
+        i = 1;
+    write("DIM");
+    write(x); //x;
+    write(y);
+    write(w);
+    write(h);
+    for (int j = 0; j < h * ((w >> 3) + i); j++) {
+        write( (const char *) (bitmap+j) );
+        delay(1);
+    }
+}
+
+void DigoleSerialDisp::setRot90(void) {
+    write("SD1");
+}
+
+void DigoleSerialDisp::setRot180(void) {
+    write("SD2");
+}
+
+void DigoleSerialDisp::setRot270(void) {
+    write("SD3");
+}
+
+void DigoleSerialDisp::undoRotation(void) {
+    write("SD0");
+}
+
+void DigoleSerialDisp::setRotation(uint8_t d) {
+    write("SD");
+    write(d);
+}
+
+void DigoleSerialDisp::setContrast(uint8_t c) {
+    write("CT");
+    write(c);
+}
+
+void DigoleSerialDisp::drawBox(uint8_t x, uint8_t y, uint8_t w, uint8_t h) {
+    write("FR");
+    write(x);
+    write(y);
+    write(x + w);
+    write(y + h);
+}
+
+void DigoleSerialDisp::drawCircle(uint8_t x, uint8_t y, uint8_t r, uint8_t f) {
+    write("CC");
+    write(x);
+    write(y);
+    write(r);
+    write(f);
+}
+
+void DigoleSerialDisp::drawDisc(uint8_t x, uint8_t y, uint8_t r) {
+    drawCircle(x, y, r, 1);
+}
+
+void DigoleSerialDisp::drawFrame(uint8_t x, uint8_t y, uint8_t w, uint8_t h) {
+    write("DR");
+    write(x);
+    write(y);
+    write(x + w);
+    write(y + h);
+}
+
+void DigoleSerialDisp::drawPixel(uint8_t x, uint8_t y, uint8_t color) {
+    write("DP");
+    write(x);
+    write(y);
+    write(color);
+}
+
+void DigoleSerialDisp::drawLine(uint8_t x, uint8_t y, uint8_t x1, uint8_t y1) {
+    write("LN");
+    write(x);
+    write(y);
+    write(x1);
+    write(y1);
+}
+
+void DigoleSerialDisp::drawLineTo(uint8_t x, uint8_t y) {
+    write("LT");
+    write(x);
+    write(y);
+}
+
+void DigoleSerialDisp::drawHLine(uint8_t x, uint8_t y, uint8_t w) {
+    drawLine(x, y, x + w, y);
+}
+
+void DigoleSerialDisp::drawVLine(uint8_t x, uint8_t y, uint8_t h) {
+    drawLine(x, y, x, y + h);
+}
+
+void DigoleSerialDisp::nextTextLine(void) {
+    write(null);
+    write("TRT");
+}
+
+void DigoleSerialDisp::setFont(uint8_t font) {
+    write("SF");
+    write(font);
+}
+
+void DigoleSerialDisp::setColor(uint8_t color) {
+    write("SC");
+    write(color);
+}
+
+void DigoleSerialDisp::backLightOn(void) {
+    write("BL");
+    write(1);
+}
+
+void DigoleSerialDisp::backLightOff(void) {
+    write("BL");
+    write(null);
+}
+
+void DigoleSerialDisp::directCommand(uint8_t d) {
+    write("MCD");
+    write(d);
+}
+
+void DigoleSerialDisp::directData(uint8_t d) {
+    write("MDT");
+    write(d);
+}
+
+void DigoleSerialDisp::moveArea(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, char xoffset, char yoffset) {
+    write("MA");
+    write(x0);
+    write(y0);
+    write(x1);
+    write(y1);
+    write(xoffset);
+    write(yoffset);
+}
+
+
+void DigoleSerialDisp::displayStartScreen(uint8_t m) {
+    write("DSS");
+    write(m);
+} //display start screen
+
+
+void DigoleSerialDisp::setMode(uint8_t m) {
+    write("DM");
+    write(m);
+} //set display mode
+
+
+void DigoleSerialDisp::setTextPosBack(void) {
+    write("ETB");
+} //set text position back to previous, only one back allowed
+
+
+void DigoleSerialDisp::setTextPosOffset(char xoffset, char yoffset) {
+    write("ETO");
+    write(xoffset);
+    write(yoffset);
+}
+
+
+void DigoleSerialDisp::setTextPosAbs(uint8_t x, uint8_t y) {
+    write("ETP");
+    write(x);
+    write(y);
+}
+
+
+void DigoleSerialDisp::setLinePattern(uint8_t pattern) {
+    write("SLP");
+    write(pattern);
+}
+
+
+void DigoleSerialDisp::setLCDChip(uint8_t chip) {      //only for universal LCD adapter
+    write("SLCD");
+    write(chip);
+}
+
+
+void DigoleSerialDisp::uploadStartScreen(int lon, const unsigned char *data) 
+{
+    int j;
+    uint8_t c;
+    write("SSS");
+    write((uint8_t) (lon % 256));
+    write((uint8_t) (lon / 256));
+    for (j = 0; j < lon;j++) {
+        if((j%32)==0)
+            delay(10);
+        delay(_Comdelay);
+        c = data[j];
+        write(c);
+    }
+}
+
+
+void DigoleSerialDisp::uploadUserFont(int lon, const unsigned char *data, uint8_t sect) {
+    uint8_t c;
+    write("SUF");
+    write(sect);
+    write((uint8_t) (lon % 256));
+    write((uint8_t) (lon / 256));
+    for (int j = 0; j < lon; j++) {
+        if((j%32)==0)
+            delay(10);
+        delay(_Comdelay);
+        c = data[j];
+        write(c);
+    }
+}
+
+void DigoleSerialDisp::digitalOutput(uint8_t x) 
+{
+    write("DOUT");
+    write(x);
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DigoleSerialDisp.h	Mon Feb 25 05:48:10 2013 +0000
@@ -0,0 +1,361 @@
+/** Digole Serial Display library, I2C
+ *
+ * @Author: Digole Digital Solutions : www.digole.com ported to mbed by Michael Shimniok www.bot-thoughts.com
+ */
+#ifndef DigoleSerialDisp_h
+#define DigoleSerialDisp_h
+
+#include "mbed.h"
+#include <inttypes.h>
+
+#define DEC 10
+#define HEX 16
+#define OCT 8
+#define BIN 2
+
+#define delay(x) wait_ms(x)
+
+// Communication set up command
+// Text function command
+// Graph function command
+
+#define Serial_UART 0;
+#define Serial_I2C 1;
+#define Serial_SPI 2;
+#define _TEXT_ 0
+#define _GRAPH_ 1
+
+/** Digole Serial LCD/OLED Library
+ *
+ * Inherits from the Print class for all the fancy print/println stuff
+ *
+ * Communication set up command
+ *   "SB":Baud (ascII bytes end with 0x00/0x0A/0x0D) -- set UART Baud Rate
+ *   "SI2CA":Address(1 byte <127) -- Set I2C address, default address is:0x27
+ *   "DC":1/0(1byte) -- set config display on/off, if set to 1, displayer will display current commucation setting when power on
+ * Text Function command
+ *   "CL": -- Clear screen--OK
+ *   "CS":1/0 (1 byte)-- Cursor on/off
+ *   "TP":x(1 byte) y(1 byte) -- set text position
+ *   "TT":string(bytes) end with 0x00/0x0A/0x0D -- display string under regular mode
+ * Graphic function command
+ *   "GP":x(1byte) y(1byte) -- set current graphic position
+ *   "DM":"C/!/~/&/|/^"(ASCII 1byte) -- set drawing mode--C="Copy",! and ~ = "Not", & = "And", | = "Or", ^ = "Xor"
+ *   "SC":1/0 (1byte) -- set draw color--only 1 and 0
+ *   "LN":x0(1byte) y0(1byte) x1(1byte) y2(1byte)--draw line from x0,y0 to x1,y1,set new pot to x1,y1
+ *   "LT":x(1byte) y(1byte) -- draw line from current pos to x,y
+ *   "CC":x(1byte) y(1byte) ratio(byte) -- draw circle at x,y with ratio
+ *   "DP":x(1byte) y(1byte) Color(1byte) -- draw a pixel--OK
+ *   "DR":x0(1byte) y0(1byte) x1(1byte) y2(1byte)--draw rectangle, top-left:x0,y0; right-bottom:x1,y1
+ *   "FR":x0(1byte) y0(1byte) x1(1byte) y2(1byte)--draw filled rectangle, top-left:x0,y0; right-bottom:x1,y1
+ */
+class DigoleSerialDisp {
+public:
+
+    /** Create a new Digole Serial Display interface
+     *
+     * @param sda - pin for I2C SDA
+     * @param scl - pin for I2C SCL
+     * @param address - 7-bit address (default is 0x27 for the device)
+     */
+    DigoleSerialDisp(PinName sda, PinName scl, uint8_t address=0x27);
+
+
+    /** Carryover from Arduino library, not needed
+     */
+    void begin(void) { } // nothing to do here
+
+
+    /** Write out a raw character
+     * @param x - character
+     * @returns - 1
+     */
+    size_t write(const char x);
+
+
+    /** Write out raw data from a buffer
+     * @param buffer -- buffer to write
+     * @param size -- the number of bytes to write
+     * @returns size
+     */
+    size_t write(const char *buffer, size_t size);
+
+
+    /** Write out raw string
+     * @param str -- string to write
+     * @returns number of bytes written
+     */
+    size_t write(const char *str);
+   
+   
+    /** Prints a char to the display in a single I2C transmission using "TTb\0"
+     *
+     * @param c - character to print
+     * @returns 1
+     */
+    size_t print(const char c);
+
+
+    /** Prints a string of data to the display in a single I2C transmission using "TTbbb...\0"
+     *
+     * @param s -- array of data, null terminated
+     * @returns length of s 
+     */
+    size_t print(const char s[]);
+
+
+    /** Print out an unsigned char as a number
+     * @param u -- integer to print
+     * @param base -- base is DEC (default), HEX, BIN
+     */
+    size_t print(unsigned char u, int base = DEC);
+
+
+    /** Print out an integer
+     * @param i -- integer to print
+     * @param base -- base is DEC (default), HEX, BIN
+     */
+    size_t print(int i, int base = DEC);
+
+
+    /** Print out an unsigned integer
+     * @param u -- integer to print
+     * @param base -- base is DEC (default), HEX, BIN
+     */
+    size_t print(unsigned int u, int base = DEC);
+    
+
+    /** Print out a long as a number
+     * @param l -- integer to print
+     * @param base -- base is DEC (default), HEX, BIN
+     */
+    size_t print(long l, int base = DEC);
+    
+
+    /** Print out an unsigned long
+     * @param l -- integer to print
+     * @param base -- base is DEC (default), HEX, BIN
+     */
+    size_t print(unsigned long l, int base = DEC);
+
+
+    /** Print out a double
+     * @param f -- integer to print
+     * @param digits -- number of digits after the decimal
+     */
+    size_t print(double f, int digits = 2);
+
+
+    /** Prints a string of data to the display in a single I2C transmission using "TTbbb...\0"
+     *
+     * @param s -- array of data, null terminated
+     * @returns length of s 
+     */
+    size_t println(const char s[]);
+
+
+    /** Prints a char the display in a single I2C transmission using "TTb\0"
+     *
+     * @param c -- character to print
+     * @returns 1
+     */
+    size_t println(char c);
+
+
+    /** Prints an unsigned char as a number
+     *
+     * @param u -- unsigned char number
+     * @returns 1
+     */
+    size_t println(unsigned char u, int base = DEC);
+
+
+    /** Print out an integer
+     * @param i -- integer to print
+     * @param base -- base is DEC (default), HEX, BIN
+     */
+    size_t println(int i, int base = DEC);
+
+
+    /** Print out an unsigned char as a number
+     * @param u -- integer to print
+     * @param base -- base is DEC (default), HEX, BIN
+     */
+    size_t println(unsigned int u, int base = DEC);
+
+
+    /** Print out a long as a number
+     * @param l -- integer to print
+     * @param base -- base is DEC (default), HEX, BIN
+     */
+    size_t println(long l, int base = DEC);
+
+
+    /** Print out an unsigned long
+     * @param l -- integer to print
+     * @param base -- base is DEC (default), HEX, BIN
+     */
+    size_t println(unsigned long l, int base = DEC);
+
+
+    /** Print out a double
+     * @param f -- integer to print
+     * @param digits -- number of digits after the decimal
+     */
+    size_t println(double f, int digits = 2);
+
+
+    /** prints -- well, nothing in this case, but let's pretend we printed a \n
+     * @returns 1
+     */
+    size_t println(void);
+   
+
+    /*---------functions for Text and Graphic LCD adapters---------*/    
+
+    /** Turns off the cursor */
+    void disableCursor(void);
+    
+    /** Turns on the cursor */
+    void enableCursor(void);
+    
+    /** Displays a string at specified coordinates
+     * @param x -- x coordinate to display string
+     * @param y -- y coordinate to display string
+     * @param s -- string to display
+     */
+    void drawStr(uint8_t x, uint8_t y, const char *s);
+    
+    /** Sets the print position for graphics or text
+     * @param x -- x coordinate to display string
+     * @param y -- y coordinate to display string
+     * @param graph -- if _TEXT_ affects subsequent text position, otherwise, affects graphics position
+     */
+    void setPrintPos(uint8_t x, uint8_t y, uint8_t graph = _TEXT_);
+    
+    /** Clears the display screen */
+    void clearScreen(void);
+    
+    /** Configure your LCD if other than 1602 and the chip is other than KS0066U/F / HD44780 
+     * @param col -- number of columns
+     * @param row -- number of rows
+     */
+    void setLCDColRow(uint8_t col, uint8_t row);
+    
+    /** Sets a new I2C address for the display (default is 0x27), the adapter will store the new address in memory
+     * @param address -- the new address 
+     */
+    void setI2CAddress(uint8_t add);
+    
+    /** Display Config on/off, the factory default set is on, 
+     * so, when the module is powered up, it will display 
+     * current communication mode on LCD, after you 
+     * design finished, you can turn it off
+     * @param v -- 1 is on, 0 is off
+     */
+    void displayConfig(uint8_t v);
+    
+    /** Holdover from Arduino library; not needed */
+    void preprint(void);
+    
+    /*----------Functions for Graphic LCD/OLED adapters only---------*/
+    //the functions in this section compatible with u8glib
+    void drawBitmap(uint8_t x, uint8_t y, uint8_t w, uint8_t h, const uint8_t *bitmap);
+    void setRot90(void);
+    void setRot180(void);
+    void setRot270(void);
+    void undoRotation(void);
+    void setRotation(uint8_t);
+    void setContrast(uint8_t);
+    void drawBox(uint8_t x, uint8_t y, uint8_t w, uint8_t h);
+    void drawCircle(uint8_t x, uint8_t y, uint8_t r, uint8_t = 0);
+    void drawDisc(uint8_t x, uint8_t y, uint8_t r);
+    void drawFrame(uint8_t x, uint8_t y, uint8_t w, uint8_t h);
+    void drawPixel(uint8_t x, uint8_t y, uint8_t = 1);
+    void drawLine(uint8_t x, uint8_t y, uint8_t x1, uint8_t y1);
+    void drawLineTo(uint8_t x, uint8_t y);
+    void drawHLine(uint8_t x, uint8_t y, uint8_t w);
+    void drawVLine(uint8_t x, uint8_t y, uint8_t h);
+    //-------------------------------
+    //special functions for our adapters
+    
+    /** Sets the font
+     *
+     * @parameter font - available fonts: 6,10,18,51,120,123, user font 200-203
+     */
+    void setFont(uint8_t font);
+    
+    /** go to next text line, depending on the font size */
+    void nextTextLine(void);
+    
+    /** set color for graphic function */ 
+    void setColor(uint8_t); 
+    
+    /** Turn on back light */
+    void backLightOn(void); 
+    
+    /** Turn off back light */
+    void backLightOff(void); 
+    
+    /** send command to LCD drectly 
+     * @param d - command
+     */
+    void directCommand(uint8_t d); 
+    
+    /** send data to LCD drectly
+     * @param d -- data
+     */
+    void directData(uint8_t d); 
+    
+    /** Move rectangle area on screen to another place
+     * @param x0, y1 -- top left of the area to move
+     * @param x1, y1 -- bottom right of the area to move
+     * @param xoffset, yoffset -- the distance to move
+     */
+    void moveArea(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, char xoffset, char yoffset);
+
+    /** Display startup screen */
+    void displayStartScreen(uint8_t m);
+    
+    /** Set display mode */
+    void setMode(uint8_t m);
+
+    /** set text position back to previous, only one back allowed */
+    void setTextPosBack(void);    
+    
+    void setTextPosOffset(char xoffset, char yoffset);
+    void setTextPosAbs(uint8_t x, uint8_t y);
+    void setLinePattern(uint8_t pattern);
+    /** Only for universal serial adapter */
+    void setLCDChip(uint8_t chip);
+
+
+    /** Set Start Screen, 1st B is the lower byte of data length. 
+     * Convert images to C array here: <a href="http://www.digole.com/tools/PicturetoC_Hex_converter.php">http://www.digole.com/tools/PicturetoC_Hex_converter.php</a>
+     * @param lon -- length of data
+     * @param data -- binary data
+     */
+    void uploadStartScreen(int lon, const unsigned char *data); //upload start screen
+    
+    /** Upload a user font
+     * @param lon -- length of data
+     * @param data -- user font data
+     * @param sect -- section of memory you want to upload to
+     */
+    void uploadUserFont(int lon, const unsigned char *data, uint8_t sect); //upload user font
+
+    /** Send a Byte to output head on board
+     * @param x -- byte to output
+     */
+    void digitalOutput(uint8_t x);
+
+private:
+    I2C _device;
+    uint8_t _address;
+    uint8_t _Comdelay;
+
+    size_t printNumber(unsigned long n, uint8_t base);
+    size_t printFloat(double number, uint8_t digits);
+};
+
+#endif