File content as of revision 8:ac09e00d2903:

//----------------------------------------------------------------
// Demo program for LCD AQM1602XA-RN-GBW using I2C interface
//      Pullup resistors for SDA and SCL: 10 kΩ
//      Use mbed Rev.129 for Nucleo-F401/446/746 and DISCO-F746
//
//  mbed Rev.130 以降で起こる，割り込み処理での動作不良を修正した
//  Aqm1602 クラスを使用
//  DISCO-F746 では動作不良は修正できないようだ
//
// 2017/07/22, Copyright (c) 2017 MIKAMI, Naoki
//----------------------------------------------------------------

#include "AQM1602.hpp"

using namespace Mikami;

Aqm1602 lcd_;                                   // Default, OK
//Aqm1602 lcd_(D14, D15);                       // OK
//Aqm1602 lcd_(D14, D15, 200000);               // OK
//Aqm1602 lcd_(D14, D15, 200000, true, true);   // OK
//Aqm1602 lcd_(PB_3, PB_10);                    // OK
//Aqm1602 lcd_(PC_9, PA_8);                     // OK
//Aqm1602 lcd_(PB_4, PA_8);                     // OK 
//I2C i2cObj_(D14, D15);                         
//Aqm1602 lcd_(i2cObj_);                        // OK

// Following: for LPC1114
//Aqm1602 lcd_(dp5, dp27);  // OK
//I2C i2cObj_(dp5, dp27);
//Aqm1602 lcd_(i2cObj_);    // OK

// Following: for LPC1768
//Aqm1602 lcd_(p9, p10);    // OK

Ticker timer_;
#ifdef STM_USER_BUTTON
DigitalIn uButton_(USER_BUTTON);
#endif

void TimerIsr()
{
    static int k = 0;
    lcd_.WriteValueXY("%5.1f", (float)(k++/10.0f), 0, 1);
}

void WaitButton()
{
#ifdef STM_USER_BUTTON
    lcd_.WriteStringXY("Push blue button", 0, 1);
  #ifdef STM32F7
    while (uButton_ == 0) {}
  #else
    while (uButton_ == 1) {}
  #endif
#else
    wait(1);
#endif
    lcd_.ClearLine(1);
    wait(0.5);
}

int main()
{
    if (lcd_.IsConnected()) printf("\r\nConnected\r\n");
    else                    printf("\r\nDisconnected\r\n");

    lcd_.Clear();
    lcd_.WriteString("Hello!");
    WaitButton();   // Waiting, push blue user button
    lcd_.WriteStringXY("0123456789ABCDEF", 0, 0);
    WaitButton();   // Waiting, push blue user button
    lcd_.ClearLine(0);
    WaitButton();   // Waiting, push blue user button
    string str = "AQM1602";
    lcd_.WriteStringXY(str+"XA-RN-GBW", 0, 0);
    TimerIsr();
    timer_.attach(&TimerIsr, 0.1f);

    while (true) {}
}