diff --git a/k3ng_keyer/k3ng_keyer.ino b/k3ng_keyer/k3ng_keyer.ino
index 638c319..5a30ae7 100644
--- a/k3ng_keyer/k3ng_keyer.ino
+++ b/k3ng_keyer/k3ng_keyer.ino
@@ -1683,6 +1683,12 @@ If you offer a hardware kit using this software, show your appreciation by sendi
   #define WIRECLOCK 400000L
 #endif
 
+#if defined(FEATURE_LCD_HD44780_PINIO)
+  #include <Wire.h>
+  #include <hd44780.h>
+  #include <hd44780ioClass/hd44780_pinIO.h>
+#endif
+
 #if defined(FEATURE_OLED_SSD1306)
   #include <Wire.h>
   #include "SSD1306Ascii.h"
@@ -2135,6 +2141,10 @@ byte send_buffer_status = SERIAL_SEND_BUFFER_NORMAL;
   hd44780_I2Cexp lcd;
 #endif
 
+#if defined(FEATURE_LCD_HD44780_PINIO)
+  hd44780_pinIO lcd(lcd_rs, lcd_enable, lcd_d4, lcd_d5, lcd_d6, lcd_d7);
+#endif
+
 #if defined(FEATURE_OLED_SSD1306)
   SSD1306AsciiWire lcd;
 #endif
@@ -18752,6 +18762,13 @@ void initialize_display(){
         lcd.begin();
         lcd.home();
      #else
+        #if defined(FEATURE_LCD_HD44780_PINIO)
+    	  // Slower access to older genuine Hitachi devices
+    	  // default is setExecTimes(HD44780_CHEXECTIME, HD44780_INSEXECTIME);
+    	  // Values in useconds
+    	  // lcd.setExecTimes(2000,38);// default
+          lcd.setExecTimes(2000, 1200);// has to be slow or lcd_centre_print_timed() causes corruption
+        #endif
         lcd.begin(LCD_COLUMNS, LCD_ROWS);
      #endif
     #endif
diff --git a/k3ng_keyer/keyer_dependencies.h b/k3ng_keyer/keyer_dependencies.h
index f5547d7..657d640 100644
--- a/k3ng_keyer/keyer_dependencies.h
+++ b/k3ng_keyer/keyer_dependencies.h
@@ -1,5 +1,5 @@
 
-#if defined(FEATURE_LCD_4BIT) || defined(FEATURE_LCD_8BIT) || defined(FEATURE_LCD_ADAFRUIT_I2C) || defined(FEATURE_LCD_ADAFRUIT_BACKPACK) || defined(FEATURE_LCD_YDv1) ||defined(FEATURE_LCD1602_N07DH) || defined(FEATURE_LCD_SAINSMART_I2C) || defined(FEATURE_LCD_FABO_PCF8574) || defined(FEATURE_LCD_MATHERTEL_PCF8574) || defined(FEATURE_LCD_HD44780) || defined(FEATURE_LCD_I2C_FDEBRABANDER) || defined(FEATURE_LCD_TWILIQUIDCRYSTAL) || defined(FEATURE_OLED_SSD1306)
+#if defined(FEATURE_LCD_4BIT) || defined(FEATURE_LCD_8BIT) || defined(FEATURE_LCD_ADAFRUIT_I2C) || defined(FEATURE_LCD_ADAFRUIT_BACKPACK) || defined(FEATURE_LCD_YDv1) ||defined(FEATURE_LCD1602_N07DH) || defined(FEATURE_LCD_SAINSMART_I2C) || defined(FEATURE_LCD_FABO_PCF8574) || defined(FEATURE_LCD_MATHERTEL_PCF8574) || defined(FEATURE_LCD_HD44780) || defined(FEATURE_LCD_I2C_FDEBRABANDER) || defined(FEATURE_LCD_TWILIQUIDCRYSTAL) || defined(FEATURE_OLED_SSD1306) || defined(FEATURE_LCD_HD44780_PINIO)
   #define FEATURE_DISPLAY
 #endif
 
diff --git a/k3ng_keyer/keyer_features_and_options.h b/k3ng_keyer/keyer_features_and_options.h
index 1bbc3d9..411be9d 100644
--- a/k3ng_keyer/keyer_features_and_options.h
+++ b/k3ng_keyer/keyer_features_and_options.h
@@ -34,7 +34,8 @@
 // #define FEATURE_LCD_FABO_PCF8574        // https://github.com/FaBoPlatform/FaBoLCD-PCF8574-Library
 // #define FEATURE_LCD_MATHERTEL_PCF8574   // https://github.com/mathertel/LiquidCrystal_PCF8574
 // #define FEATURE_LCD_I2C_FDEBRABANDER    // https://github.com/fdebrabander/Arduino-LiquidCrystal-I2C-library
-// #define FEATURE_LCD_HD44780
+// #define FEATURE_LCD_HD44780             // hd44780_I2Cexp subclass control LCD using i2c i/o expander backpack (PCF8574 or MCP23008) see https://https://github.com/duinoWitchery/hd44780 
+// #define FEATURE_LCD_HD44780_PINIO       // hd44780_pinIO subclass control LCD using direct Arduino Pin connections see https://https://github.com/duinoWitchery/hd44780 
 // #define FEATURE_OLED_SSD1306            // https://github.com/greiman/SSD1306Ascii
 // #define FEATURE_CW_DECODER              // https://github.com/k3ng/k3ng_cw_keyer/wiki/385-Feature:-CW-Decoder 
 // #define FEATURE_SLEEP                   // go to sleep after x minutes to conserve battery power (not compatible with Arduino DUE, may have mixed results with Mega and Mega ADK)
diff --git a/k3ng_keyer/keyer_pin_settings.h b/k3ng_keyer/keyer_pin_settings.h
index 690f06c..2647fc2 100644
--- a/k3ng_keyer/keyer_pin_settings.h
+++ b/k3ng_keyer/keyer_pin_settings.h
@@ -41,7 +41,7 @@ FEATURE_SIDETONE_SWITCH
 
 
 //lcd pins
-#if defined(FEATURE_LCD_4BIT) || defined(FEATURE_LCD_8BIT)
+#if defined(FEATURE_LCD_4BIT) || defined(FEATURE_LCD_8BIT) || defined(FEATURE_LCD_HD44780_PINIO)
   #define lcd_rs A2
   #define lcd_enable 10  // pin 10 is used by Ethernet shield and will conflict with that
   #define lcd_d4 6