void HD44780_74HC595::print(String value) {
for (int i = 0; i < value.length(); i++){
uint8_t charCode = value.charAt(i);
uint8_t shiftCode7 = charCode >> 7;
uint8_t shiftCode5 = charCode >> 5;
if (shiftCode7 == 0x00) {
// 1 octet UTF-8 Char (https://fr.wikipedia.org/wiki/UTF-8)
// ASCII table from "Exclamation mark" to "Closing brace"
if ((charCode >= 0x20) && (charCode <= 0x7D)) {
LCDdata(charCode);
} else {
if (HD44780_74HC595_SerialDebug) { Serial.println("[HD44780_74HC595.cpp] print(" + String(charCode, HEX) + ") non géré"); }
}
} else if (shiftCode5 == 0x06) {
// 2 octets UTF-8 Char
uint16_t UTF8Hex = charCode << 8;
i++;
UTF8Hex = UTF8Hex | ((uint16_t)value.charAt(i));
switch (UTF8Hex) {
case 0xC2B0: LCDdata(LCD_DEG); break;
default:
if (HD44780_74HC595_SerialDebug) { Serial.println("[HD44780_74HC595.cpp] print(" + String(UTF8Hex, HEX) + ") non géré"); }
}
}
}
}
void LCDdisplay(void)
{
uint8_t col, maxcol, p;
for(p = 0; p < 6; p++)
{
#ifdef enablePartialUpdate
/* check if this page is part of update*/
if ( yUpdateMin >= ((p+1)*8) )
{
continue; /* nope, skip it! */
}
if (yUpdateMax < p*8)
{
break;
}
#endif
LCDcommand(PCD8544_SETYADDR | p);
#ifdef enablePartialUpdate
col = xUpdateMin;
maxcol = xUpdateMax;
#else
/* start at the beginning of the row */
col = 0;
maxcol = LCDWIDTH-1;
#endif
LCDcommand(PCD8544_SETXADDR | col);
for(; col <= maxcol; col++) {
/*uart_putw_dec(col); */
/*uart_putchar(' '); */
LCDdata(pcd8544_buffer[(LCDWIDTH*p)+col]);
}
}
LCDcommand(PCD8544_SETYADDR ); /* no idea why this is necessary but it is to finish the last byte? */
#ifdef enablePartialUpdate
xUpdateMin = LCDWIDTH - 1;
xUpdateMax = 0;
yUpdateMin = LCDHEIGHT-1;
yUpdateMax = 0;
#endif
}
