diff --git a/README.md b/README.md
index ee5e96d..2cbbfbc 100644
--- a/README.md
+++ b/README.md
@@ -29,16 +29,43 @@ Parallel LCD pin to Nano
 	 4 RS -> D9
 	 5 RW -> A0
 	 6 EN -> A1
-	11 D4 -> D5
-	12 D5 -> D6
-	13 D6 -> D7
-	14 D7 -> D8
+	11 DB4 -> D5
+	12 DB5 -> D6
+	13 DB6 -> D7
+	14 DB7 -> D8
 
 	 1 gnd
 	 2 +5v
 	 3 contrast
 	 15,16 backlight power (on some)
 
+PanelOne (5V) LCD pin to Nano
+--------------------
+
+	AUX2  6 RS    -> D9
+	AUX2  8 EN    -> A1
+	AUX2 10 DB4   -> D5
+	AUX2  9 DB5   -> D6
+	AUX2  7 DB6   -> D7
+	AUX2  5 DB7   -> D8
+	AUX2  4 ENCA  -> D2
+	AUX2  3 ENCB  -> D3
+	AUX3  7 ENCSW -> A2
+	
+	AUX2 2 -> GND
+	AUX2 1 -> +5V
+
+PanelOne (5V) SD pin to Smoothie
+--------------------
+
+	AUX3 3  CS -> Unused GPIO : 1.30
+	AUX3 4 CLK -> SCK  : 0.15
+	AUX3 5  DO -> MISO : 0.17
+	AUX3 6  DI -> MOSI : 0.18
+	
+	AUX3 2 -> GND
+	AUX3 8 -> +5V
+
 Smoothie to Nano
 ----------------
 	MOSI -> D11 : 0.18
@@ -58,6 +85,12 @@ add this to your config file on smoothie
 	panel.spi_cs_pin                            0.16              # spi chip select
 	panel.busy_pin                              2.11              # busy pin NOTE 1.30 on Azteeg X5
 
+second SD card on panelone
+
+	panel.external_sd                     true              # set to true if there is an extrernal sdcard on the panel
+	panel.external_sd.spi_channel         0                 # set spi channel the sdcard is on
+	panel.external_sd.spi_cs_pin          1.30              # set spi chip select for the sdcard (or any spare pin)
+	panel.external_sd.sdcd_pin            nc                # sd detect signal (set to nc if no sdcard detect) (or any spare pin)
 
 Requirements
 ------------
diff --git a/digitalWriteFast.h b/digitalWriteFast.h
index 5871281..53bd1c3 100644
--- a/digitalWriteFast.h
+++ b/digitalWriteFast.h
@@ -1,5 +1,7 @@
 #include "Arduino.h"
+#if ARDUINO < 150
 #include <wiring.h>
+#endif
 
 #define BIT_READ(value, bit) (((value) >> (bit)) & 0x01)
 #define BIT_SET(value, bit) ((value) |= (1UL << (bit)))
diff --git a/upa.cpp b/upa.cpp
index e4be03f..ad2c7e8 100644
--- a/upa.cpp
+++ b/upa.cpp
@@ -21,6 +21,9 @@ SS   -> D10
 #define VIKI 1
 //#define PARALLEL 1
 
+//select if parallel panel has RW pin connected
+#define RW_PIN 1
+
 #ifdef VIKI
 #include "LiquidTWI2.h"
 #include "utility/twi.h"
@@ -32,6 +35,7 @@ LiquidTWI2 lcd(0); // uses pins SDA -> A4, SCL -> A5
 #include "LiquidCrystalFast.h"
 // parallel LCD Pins
 // LCD pins: RS  RW  EN  D4 D5 D6 D7
+// if not defined RW_PIN then RW needs to be connected to GND
 #define LCD_RS  9 // D9
 #define LCD_RW A0 // A0
 #define LCD_EN A1 // A1
@@ -40,7 +44,11 @@ LiquidTWI2 lcd(0); // uses pins SDA -> A4, SCL -> A5
 #define LCD_D6  7 // D7
 #define LCD_D7  8 // D8
 
+#if defined(RW_PIN)
 LiquidCrystalFast lcd(LCD_RS, LCD_RW, LCD_EN, LCD_D4, LCD_D5, LCD_D6, LCD_D7);
+#else
+LiquidCrystalFast lcd(LCD_RS, LCD_EN, LCD_D4, LCD_D5, LCD_D6, LCD_D7);
+#endif // defined(RW_PIN)
 
 #define CLICK_PIN  A2 // A2 Encoder click pin
 #define BUZZER_PIN A3 // A3 Buzzer pin
@@ -240,7 +248,7 @@ void setup (void)
     clear();
 
 	lcd.setCursor(0, 0);
-	lcd.print("UPA V0.98");
+	lcd.print("UPA V0.99");
 	lcd.setCursor(0, 1);
 	lcd.print("Starting up...");
 }  // end of setup