File content as of revision 16:b3cc7cf41a1b:

#include "mbed.h"
#include "TextLCD.h"
#include <string>
#ifndef MYLCD
#define MYLCD
class MyLCD
{
public:
    MyLCD(int refreshRate, PinName rs, PinName e, PinName d4, PinName d5, PinName d6, PinName d7): lcd(rs, e, d4, d5, d6, d7) {
        bufferOld[0]='\0';
        if (refreshRate>0)
            t.attach(this, &MyLCD::update, 1.0/refreshRate);
        else
            t.attach(this, &MyLCD::update, 1.0/20);
    }
    
    void printf(string text) {
        text.copy(buffer, 32, 0 );
        buffer[32]='\0';
    }
    
    void printf(string text, float number, string nav) {
        char tmp2[33];
        sprintf(tmp2,text.append(": %.0f\n%s\0").c_str(), number, nav);
        printf(tmp2);
    }

private:
    TextLCD lcd;
    Ticker t;
    char buffer[33], bufferOld [33];

    void update() {
        if(!strcmp(bufferOld,buffer)==0) {
            lcd.cls();
            lcd.printf("%s\0", buffer);
            strncpy(bufferOld, buffer, 32);
        }
    }
};

#endif