#ifndef ULTRALCD_IMPLEMENTATION_HITACHI_HD44780_H #define ULTRALCD_IMPLEMENTATION_HITACHI_HD44780_H /** * Implementation of the LCD display routines for a Hitachi HD44780 display. These are common LCD character displays. * When selecting the Russian language, a slightly different LCD implementation is used to handle UTF8 characters. **/ #ifndef REPRAPWORLD_KEYPAD extern volatile uint8_t buttons; //the last checked buttons in a bit array. #else extern volatile uint16_t buttons; //an extended version of the last checked buttons in a bit array. #endif //////////////////////////////////// // Setup button and encode mappings for each panel (into 'buttons' variable // // This is just to map common functions (across different panels) onto the same // macro name. The mapping is independent of whether the button is directly connected or // via a shift/i2c register. #ifdef ULTIPANEL // All UltiPanels might have an encoder - so this is always be mapped onto first two bits #define BLEN_B 1 #define BLEN_A 0 #define EN_B BIT(BLEN_B) // The two encoder pins are connected through BTN_EN1 and BTN_EN2 #define EN_A BIT(BLEN_A) #if defined(BTN_ENC) && BTN_ENC > -1 // encoder click is directly connected #define BLEN_C 2 #define EN_C BIT(BLEN_C) #endif // // Setup other button mappings of each panel // #if defined(LCD_I2C_VIKI) #define B_I2C_BTN_OFFSET 3 // (the first three bit positions reserved for EN_A, EN_B, EN_C) // button and encoder bit positions within 'buttons' #define B_LE (BUTTON_LEFT< -1 // the pause/stop/restart button is connected to BTN_ENC when used #define B_ST (EN_C) // Map the pause/stop/resume button into its normalized functional name #define LCD_CLICKED (buttons&(B_MI|B_RI|B_ST)) // pause/stop button also acts as click until we implement proper pause/stop. #else #define LCD_CLICKED (buttons&(B_MI|B_RI)) #endif // I2C buttons take too long to read inside an interrupt context and so we read them during lcd_update #define LCD_HAS_SLOW_BUTTONS #elif defined(LCD_I2C_PANELOLU2) // encoder click can be read through I2C if not directly connected #if BTN_ENC <= 0 #define B_I2C_BTN_OFFSET 3 // (the first three bit positions reserved for EN_A, EN_B, EN_C) #define B_MI (PANELOLU2_ENCODER_C< #include #include #define LCD_CLASS LiquidCrystal_I2C LCD_CLASS lcd(LCD_I2C_ADDRESS,LCD_I2C_PIN_EN,LCD_I2C_PIN_RW,LCD_I2C_PIN_RS,LCD_I2C_PIN_D4,LCD_I2C_PIN_D5,LCD_I2C_PIN_D6,LCD_I2C_PIN_D7); #elif defined(LCD_I2C_TYPE_MCP23017) //for the LED indicators (which maybe mapped to different things in lcd_implementation_update_indicators()) #define LED_A 0x04 //100 #define LED_B 0x02 //010 #define LED_C 0x01 //001 #define LCD_HAS_STATUS_INDICATORS #include #include #define LCD_CLASS LiquidTWI2 #if defined(DETECT_DEVICE) LCD_CLASS lcd(LCD_I2C_ADDRESS, 1); #else LCD_CLASS lcd(LCD_I2C_ADDRESS); #endif #elif defined(LCD_I2C_TYPE_MCP23008) #include #include #define LCD_CLASS LiquidTWI2 #if defined(DETECT_DEVICE) LCD_CLASS lcd(LCD_I2C_ADDRESS, 1); #else LCD_CLASS lcd(LCD_I2C_ADDRESS); #endif #elif defined(LCD_I2C_TYPE_PCA8574) #include #define LCD_CLASS LiquidCrystal_I2C LCD_CLASS lcd(LCD_I2C_ADDRESS, LCD_WIDTH, LCD_HEIGHT); // 2 wire Non-latching LCD SR from: // https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/schematics#!shiftregister-connection #elif defined(SR_LCD_2W_NL) extern "C" void __cxa_pure_virtual() { while (1); } #include #include #define LCD_CLASS LiquidCrystal_SR LCD_CLASS lcd(SR_DATA_PIN, SR_CLK_PIN); #else // Standard directly connected LCD implementations #include #define LCD_CLASS LiquidCrystal LCD_CLASS lcd(LCD_PINS_RS, LCD_PINS_ENABLE, LCD_PINS_D4, LCD_PINS_D5,LCD_PINS_D6,LCD_PINS_D7); //RS,Enable,D4,D5,D6,D7 #endif #include "utf_mapper.h" #ifdef LCD_PROGRESS_BAR static uint16_t progressBarTick = 0; #if PROGRESS_MSG_EXPIRE > 0 static uint16_t expireStatusMillis = 0; #endif #define LCD_STR_PROGRESS "\x03\x04\x05" #endif static void lcd_set_custom_characters( #ifdef LCD_PROGRESS_BAR bool progress_bar_set=true #endif ) { byte bedTemp[8] = { B00000, B11111, B10101, B10001, B10101, B11111, B00000, B00000 }; //thanks Sonny Mounicou byte degree[8] = { B01100, B10010, B10010, B01100, B00000, B00000, B00000, B00000 }; byte thermometer[8] = { B00100, B01010, B01010, B01010, B01010, B10001, B10001, B01110 }; byte uplevel[8] = { B00100, B01110, B11111, B00100, B11100, B00000, B00000, B00000 }; //thanks joris byte refresh[8] = { B00000, B00110, B11001, B11000, B00011, B10011, B01100, B00000, }; //thanks joris byte folder[8] = { B00000, B11100, B11111, B10001, B10001, B11111, B00000, B00000 }; //thanks joris byte feedrate[8] = { B11100, B10000, B11000, B10111, B00101, B00110, B00101, B00000 }; //thanks Sonny Mounicou byte clock[8] = { B00000, B01110, B10011, B10101, B10001, B01110, B00000, B00000 }; //thanks Sonny Mounicou #ifdef LCD_PROGRESS_BAR static bool char_mode = false; byte progress[3][8] = { { B00000, B10000, B10000, B10000, B10000, B10000, B10000, B00000 }, { B00000, B10100, B10100, B10100, B10100, B10100, B10100, B00000 }, { B00000, B10101, B10101, B10101, B10101, B10101, B10101, B00000 } }; if (progress_bar_set != char_mode) { char_mode = progress_bar_set; lcd.createChar(LCD_STR_BEDTEMP[0], bedTemp); lcd.createChar(LCD_STR_DEGREE[0], degree); lcd.createChar(LCD_STR_THERMOMETER[0], thermometer); lcd.createChar(LCD_STR_FEEDRATE[0], feedrate); lcd.createChar(LCD_STR_CLOCK[0], clock); if (progress_bar_set) { // Progress bar characters for info screen for (int i=3; i--;) lcd.createChar(LCD_STR_PROGRESS[i], progress[i]); } else { // Custom characters for submenus lcd.createChar(LCD_STR_UPLEVEL[0], uplevel); lcd.createChar(LCD_STR_REFRESH[0], refresh); lcd.createChar(LCD_STR_FOLDER[0], folder); } } #else lcd.createChar(LCD_STR_BEDTEMP[0], bedTemp); lcd.createChar(LCD_STR_DEGREE[0], degree); lcd.createChar(LCD_STR_THERMOMETER[0], thermometer); lcd.createChar(LCD_STR_UPLEVEL[0], uplevel); lcd.createChar(LCD_STR_REFRESH[0], refresh); lcd.createChar(LCD_STR_FOLDER[0], folder); lcd.createChar(LCD_STR_FEEDRATE[0], feedrate); lcd.createChar(LCD_STR_CLOCK[0], clock); #endif } static void lcd_implementation_init( #ifdef LCD_PROGRESS_BAR bool progress_bar_set=true #endif ) { #if defined(LCD_I2C_TYPE_PCF8575) lcd.begin(LCD_WIDTH, LCD_HEIGHT); #ifdef LCD_I2C_PIN_BL lcd.setBacklightPin(LCD_I2C_PIN_BL,POSITIVE); lcd.setBacklight(HIGH); #endif #elif defined(LCD_I2C_TYPE_MCP23017) lcd.setMCPType(LTI_TYPE_MCP23017); lcd.begin(LCD_WIDTH, LCD_HEIGHT); lcd.setBacklight(0); //set all the LEDs off to begin with #elif defined(LCD_I2C_TYPE_MCP23008) lcd.setMCPType(LTI_TYPE_MCP23008); lcd.begin(LCD_WIDTH, LCD_HEIGHT); #elif defined(LCD_I2C_TYPE_PCA8574) lcd.init(); lcd.backlight(); #else lcd.begin(LCD_WIDTH, LCD_HEIGHT); #endif lcd_set_custom_characters( #ifdef LCD_PROGRESS_BAR progress_bar_set #endif ); lcd.clear(); } static void lcd_implementation_clear() { lcd.clear(); } /* Arduino < 1.0.0 is missing a function to print PROGMEM strings, so we need to implement our own */ char lcd_printPGM(const char* str) { char c; char n = 0; while((c = pgm_read_byte(str++))) { n += charset_mapper(c); } return n; } char lcd_print(char* str) { char c, n = 0;; unsigned char i = 0; while((c = str[i++])) { n += charset_mapper(c); } return n; } unsigned lcd_print(char c) { return charset_mapper(c); } /* Possible status screens: 16x2 |0123456789012345| |000/000 B000/000| |Status line.....| 16x4 |0123456789012345| |000/000 B000/000| |SD100% Z000.0| |F100% T--:--| |Status line.....| 20x2 |01234567890123456789| |T000/000D B000/000D | |Status line.........| 20x4 |01234567890123456789| |T000/000D B000/000D | |X000 Y000 Z000.00| |F100% SD100% T--:--| |Status line.........| 20x4 |01234567890123456789| |T000/000D B000/000D | |T000/000D Z000.0| |F100% SD100% T--:--| |Status line.........| */ static void lcd_implementation_status_screen() { int tHotend = int(degHotend(0) + 0.5); int tTarget = int(degTargetHotend(0) + 0.5); #if LCD_WIDTH < 20 lcd.setCursor(0, 0); lcd.print(itostr3(tHotend)); lcd.print('/'); lcd.print(itostr3left(tTarget)); #if EXTRUDERS > 1 || TEMP_SENSOR_BED != 0 // If we have an 2nd extruder or heated bed, show that in the top right corner lcd.setCursor(8, 0); #if EXTRUDERS > 1 tHotend = int(degHotend(1) + 0.5); tTarget = int(degTargetHotend(1) + 0.5); lcd.print(LCD_STR_THERMOMETER[0]); #else // Heated bed tHotend = int(degBed() + 0.5); tTarget = int(degTargetBed() + 0.5); lcd.print(LCD_STR_BEDTEMP[0]); #endif lcd.print(itostr3(tHotend)); lcd.print('/'); lcd.print(itostr3left(tTarget)); #endif // EXTRUDERS > 1 || TEMP_SENSOR_BED != 0 #else // LCD_WIDTH > 19 lcd.setCursor(0, 0); lcd.print(LCD_STR_THERMOMETER[0]); lcd.print(itostr3(tHotend)); lcd.print('/'); lcd.print(itostr3left(tTarget)); lcd_printPGM(PSTR(LCD_STR_DEGREE " ")); if (tTarget < 10) lcd.print(' '); #if EXTRUDERS > 1 || TEMP_SENSOR_BED != 0 // If we have an 2nd extruder or heated bed, show that in the top right corner lcd.setCursor(10, 0); #if EXTRUDERS > 1 tHotend = int(degHotend(1) + 0.5); tTarget = int(degTargetHotend(1) + 0.5); lcd.print(LCD_STR_THERMOMETER[0]); #else // Heated bed tHotend = int(degBed() + 0.5); tTarget = int(degTargetBed() + 0.5); lcd.print(LCD_STR_BEDTEMP[0]); #endif lcd.print(itostr3(tHotend)); lcd.print('/'); lcd.print(itostr3left(tTarget)); lcd_printPGM(PSTR(LCD_STR_DEGREE " ")); if (tTarget < 10) lcd.print(' '); #endif // EXTRUDERS > 1 || TEMP_SENSOR_BED != 0 #endif // LCD_WIDTH > 19 #if LCD_HEIGHT > 2 // Lines 2 for 4 line LCD #if LCD_WIDTH < 20 #ifdef SDSUPPORT lcd.setCursor(0, 2); lcd_printPGM(PSTR("SD")); if (IS_SD_PRINTING) lcd.print(itostr3(card.percentDone())); else lcd_printPGM(PSTR("---")); lcd.print('%'); #endif // SDSUPPORT #else // LCD_WIDTH > 19 #if EXTRUDERS > 1 && TEMP_SENSOR_BED != 0 // If we both have a 2nd extruder and a heated bed, show the heated bed temp on the 2nd line on the left, as the first line is filled with extruder temps tHotend = int(degBed() + 0.5); tTarget = int(degTargetBed() + 0.5); lcd.setCursor(0, 1); lcd.print(LCD_STR_BEDTEMP[0]); lcd.print(itostr3(tHotend)); lcd.print('/'); lcd.print(itostr3left(tTarget)); lcd_printPGM(PSTR(LCD_STR_DEGREE " ")); if (tTarget < 10) lcd.print(' '); #else lcd.setCursor(0,1); lcd.print('X'); lcd.print(ftostr3(current_position[X_AXIS])); lcd_printPGM(PSTR(" Y")); lcd.print(ftostr3(current_position[Y_AXIS])); #endif // EXTRUDERS > 1 || TEMP_SENSOR_BED != 0 #endif // LCD_WIDTH > 19 lcd.setCursor(LCD_WIDTH - 8, 1); lcd.print('Z'); lcd.print(ftostr32sp(current_position[Z_AXIS] + 0.00001)); #endif // LCD_HEIGHT > 2 #if LCD_HEIGHT > 3 lcd.setCursor(0, 2); lcd.print(LCD_STR_FEEDRATE[0]); lcd.print(itostr3(feedmultiply)); lcd.print('%'); #if LCD_WIDTH > 19 && defined(SDSUPPORT) lcd.setCursor(7, 2); lcd_printPGM(PSTR("SD")); if (IS_SD_PRINTING) lcd.print(itostr3(card.percentDone())); else lcd_printPGM(PSTR("---")); lcd.print('%'); #endif // LCD_WIDTH > 19 && SDSUPPORT lcd.setCursor(LCD_WIDTH - 6, 2); lcd.print(LCD_STR_CLOCK[0]); if (starttime != 0) { uint16_t time = millis()/60000 - starttime/60000; lcd.print(itostr2(time/60)); lcd.print(':'); lcd.print(itostr2(time%60)); } else { lcd_printPGM(PSTR("--:--")); } #endif // LCD_HEIGHT > 3 /** * Display Progress Bar, Filament display, and/or Status Message on the last line */ lcd.setCursor(0, LCD_HEIGHT - 1); #ifdef LCD_PROGRESS_BAR if (card.isFileOpen()) { if (millis() >= progressBarTick + PROGRESS_BAR_MSG_TIME || !lcd_status_message[0]) { // draw the progress bar int tix = (int)(card.percentDone() * LCD_WIDTH * 3) / 100, cel = tix / 3, rem = tix % 3, i = LCD_WIDTH; char msg[LCD_WIDTH+1], b = ' '; msg[i] = '\0'; while (i--) { if (i == cel - 1) b = LCD_STR_PROGRESS[2]; else if (i == cel && rem != 0) b = LCD_STR_PROGRESS[rem-1]; msg[i] = b; } lcd.print(msg); return; } } //card.isFileOpen #elif defined(FILAMENT_LCD_DISPLAY) // Show Filament Diameter and Volumetric Multiplier % // After allowing lcd_status_message to show for 5 seconds if (millis() >= previous_lcd_status_ms + 5000) { lcd_printPGM(PSTR("Dia ")); lcd.print(ftostr12ns(filament_width_meas)); lcd_printPGM(PSTR(" V")); lcd.print(itostr3(100.0*volumetric_multiplier[FILAMENT_SENSOR_EXTRUDER_NUM])); lcd.print('%'); return; } #endif // FILAMENT_LCD_DISPLAY lcd_print(lcd_status_message); } static void lcd_implementation_drawmenu_generic(bool sel, uint8_t row, const char* pstr, char pre_char, char post_char) { char c; uint8_t n = LCD_WIDTH - 2; lcd.setCursor(0, row); lcd.print(sel ? pre_char : ' '); while ((c = pgm_read_byte(pstr)) && n > 0) { n -= lcd_print(c); pstr++; } while(n--) lcd.print(' '); lcd.print(post_char); } static void lcd_implementation_drawmenu_setting_edit_generic(bool sel, uint8_t row, const char* pstr, char pre_char, char* data) { char c; uint8_t n = LCD_WIDTH - 2 - lcd_strlen(data); lcd.setCursor(0, row); lcd.print(sel ? pre_char : ' '); while ((c = pgm_read_byte(pstr)) && n > 0) { n -= lcd_print(c); pstr++; } lcd.print(':'); while (n--) lcd.print(' '); lcd_print(data); } static void lcd_implementation_drawmenu_setting_edit_generic_P(bool sel, uint8_t row, const char* pstr, char pre_char, const char* data) { char c; uint8_t n = LCD_WIDTH - 2 - lcd_strlen_P(data); lcd.setCursor(0, row); lcd.print(sel ? pre_char : ' '); while ((c = pgm_read_byte(pstr)) && n > 0) { n -= lcd_print(c); pstr++; } lcd.print(':'); while (n--) lcd.print(' '); lcd_printPGM(data); } #define lcd_implementation_drawmenu_setting_edit_int3(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', itostr3(*(data))) #define lcd_implementation_drawmenu_setting_edit_float3(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr3(*(data))) #define lcd_implementation_drawmenu_setting_edit_float32(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr32(*(data))) #define lcd_implementation_drawmenu_setting_edit_float43(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr43(*(data))) #define lcd_implementation_drawmenu_setting_edit_float5(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr5(*(data))) #define lcd_implementation_drawmenu_setting_edit_float52(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr52(*(data))) #define lcd_implementation_drawmenu_setting_edit_float51(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr51(*(data))) #define lcd_implementation_drawmenu_setting_edit_long5(sel, row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr5(*(data))) #define lcd_implementation_drawmenu_setting_edit_bool(sel, row, pstr, pstr2, data) lcd_implementation_drawmenu_setting_edit_generic_P(sel, row, pstr, '>', (*(data))?PSTR(MSG_ON):PSTR(MSG_OFF)) //Add version for callback functions #define lcd_implementation_drawmenu_setting_edit_callback_int3(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', itostr3(*(data))) #define lcd_implementation_drawmenu_setting_edit_callback_float3(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr3(*(data))) #define lcd_implementation_drawmenu_setting_edit_callback_float32(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr32(*(data))) #define lcd_implementation_drawmenu_setting_edit_callback_float43(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr43(*(data))) #define lcd_implementation_drawmenu_setting_edit_callback_float5(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr5(*(data))) #define lcd_implementation_drawmenu_setting_edit_callback_float52(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr52(*(data))) #define lcd_implementation_drawmenu_setting_edit_callback_float51(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr51(*(data))) #define lcd_implementation_drawmenu_setting_edit_callback_long5(sel, row, pstr, pstr2, data, minValue, maxValue, callback) lcd_implementation_drawmenu_setting_edit_generic(sel, row, pstr, '>', ftostr5(*(data))) #define lcd_implementation_drawmenu_setting_edit_callback_bool(sel, row, pstr, pstr2, data, callback) lcd_implementation_drawmenu_setting_edit_generic_P(sel, row, pstr, '>', (*(data))?PSTR(MSG_ON):PSTR(MSG_OFF)) void lcd_implementation_drawedit(const char* pstr, char* value) { lcd.setCursor(1, 1); lcd_printPGM(pstr); lcd.print(':'); lcd.setCursor(LCD_WIDTH - lcd_strlen(value), 1); lcd_print(value); } static void lcd_implementation_drawmenu_sd(bool sel, uint8_t row, const char* pstr, const char* filename, char* longFilename, uint8_t concat, char post_char) { char c; uint8_t n = LCD_WIDTH - concat; lcd.setCursor(0, row); lcd.print(sel ? '>' : ' '); if (longFilename[0]) { filename = longFilename; longFilename[n] = '\0'; } while ((c = *filename) && n > 0) { n -= lcd_print(c); filename++; } while (n--) lcd.print(' '); lcd.print(post_char); } static void lcd_implementation_drawmenu_sdfile(bool sel, uint8_t row, const char* pstr, const char* filename, char* longFilename) { lcd_implementation_drawmenu_sd(sel, row, pstr, filename, longFilename, 2, ' '); } static void lcd_implementation_drawmenu_sddirectory(bool sel, uint8_t row, const char* pstr, const char* filename, char* longFilename) { lcd_implementation_drawmenu_sd(sel, row, pstr, filename, longFilename, 2, LCD_STR_FOLDER[0]); } #define lcd_implementation_drawmenu_back(sel, row, pstr, data) lcd_implementation_drawmenu_generic(sel, row, pstr, LCD_STR_UPLEVEL[0], LCD_STR_UPLEVEL[0]) #define lcd_implementation_drawmenu_submenu(sel, row, pstr, data) lcd_implementation_drawmenu_generic(sel, row, pstr, '>', LCD_STR_ARROW_RIGHT[0]) #define lcd_implementation_drawmenu_gcode(sel, row, pstr, gcode) lcd_implementation_drawmenu_generic(sel, row, pstr, '>', ' ') #define lcd_implementation_drawmenu_function(sel, row, pstr, data) lcd_implementation_drawmenu_generic(sel, row, pstr, '>', ' ') #ifdef LCD_HAS_STATUS_INDICATORS static void lcd_implementation_update_indicators() { #if defined(LCD_I2C_PANELOLU2) || defined(LCD_I2C_VIKI) //set the LEDS - referred to as backlights by the LiquidTWI2 library static uint8_t ledsprev = 0; uint8_t leds = 0; if (target_temperature_bed > 0) leds |= LED_A; if (target_temperature[0] > 0) leds |= LED_B; if (fanSpeed) leds |= LED_C; #if EXTRUDERS > 1 if (target_temperature[1] > 0) leds |= LED_C; #endif if (leds != ledsprev) { lcd.setBacklight(leds); ledsprev = leds; } #endif } #endif // LCD_HAS_STATUS_INDICATORS #ifdef LCD_HAS_SLOW_BUTTONS extern millis_t next_button_update_ms; static uint8_t lcd_implementation_read_slow_buttons() { #ifdef LCD_I2C_TYPE_MCP23017 uint8_t slow_buttons; // Reading these buttons this is likely to be too slow to call inside interrupt context // so they are called during normal lcd_update slow_buttons = lcd.readButtons() << B_I2C_BTN_OFFSET; #ifdef LCD_I2C_VIKI if ((slow_buttons & (B_MI|B_RI)) && millis() < next_button_update_ms) // LCD clicked slow_buttons &= ~(B_MI|B_RI); // Disable LCD clicked buttons if screen is updated #endif return slow_buttons; #endif } #endif // LCD_HAS_SLOW_BUTTONS #endif //__ULTRALCD_IMPLEMENTATION_HITACHI_HD44780_H