diff -r old/firmware/lcd.c new/firmware/lcd.c
42,43c42,43
< #define lcd_e1_high()   LCD_E_PORT  |=  _BV(LCD_E1_PIN);
< #define lcd_e1_low()    LCD_E_PORT  &= ~_BV(LCD_E1_PIN);
---
> //#define lcd_e1_high()   LCD_E_PORT  |=  _BV(LCD_E1_PIN);
> //#define lcd_e1_low()    LCD_E_PORT  &= ~_BV(LCD_E1_PIN);
91c91
<     if(ctrl & LCD_CTRL_1) lcd_e1_high();
---
> //    if(ctrl & LCD_CTRL_1) lcd_e1_high();
96c96
<     if(ctrl & LCD_CTRL_1) lcd_e1_low();
---
> //    if(ctrl & LCD_CTRL_1) lcd_e1_low();
151c151
<     if(ctrl & LCD_CTRL_1) lcd_e1_high();
---
> //    if(ctrl & LCD_CTRL_1) lcd_e1_high();
155c155
<     if(ctrl & LCD_CTRL_1) lcd_e1_low();
---
> //    if(ctrl & LCD_CTRL_1) lcd_e1_low();
160c160
<     if(ctrl & LCD_CTRL_1) lcd_e1_high();
---
> //    if(ctrl & LCD_CTRL_1) lcd_e1_high();
164c164
<     if(ctrl & LCD_CTRL_1) lcd_e1_low();
---
> //    if(ctrl & LCD_CTRL_1) lcd_e1_low();
265c265
<     DDR(LCD_E_PORT)     |= _BV(LCD_E1_PIN);  /* seconds controller */
---
> //    DDR(LCD_E_PORT)     |= _BV(LCD_E1_PIN);  /* seconds controller */
diff -r old/firmware/lcd.h new/firmware/lcd.h
67c67
< #define LCD_E1_PIN       4            /**< pin  for Enable line 1   */
---
> //#define LCD_E1_PIN       4            /**< pin  for Enable line 1   */
diff -r old/firmware/main.c new/firmware/main.c
197,198c197,200
<       replyBuf[0] = ((PINC & _BV(5))?0:1) | 
< 	            ((PINB & _BV(0))?0:2);
---
>       replyBuf[0] = ((PINB & _BV(0))?0:8) | 
> 	            ((PINC & _BV(5))?0:1) |
> 	            ((PINC & _BV(4))?0:2) |
> 	            ((PINB & _BV(3))?0:4);
237c239
<   DDRC = ~0;		   /* output SE0 for USB reset */
---
>   DDRC = 0x0f;		   /* output SE0 for USB reset */
242c244
<   DDRC = ~USBMASK;	   /* all outputs except USB data */
---
>   DDRC = (~USBMASK & 0x0f);	   /* all outputs except USB data */
247,249c249
<   DDRC &= ~_BV(5);         /* input S1 */
<   PORTC |= _BV(5);         /* with pullup */
<   DDRB &= ~_BV(0);         /* input S2 */
---
>   DDRB &= ~_BV(0);         /* input S1 */
250a251,256
>   DDRC &= ~_BV(5);         /* input S2 */
>   PORTC |= _BV(5);         /* with pullup */
>   DDRC &= ~_BV(4);         /* input S3 */
>   PORTC |= _BV(4);         /* with pullup */
>   DDRB &= ~_BV(3);         /* input S4 */
>   PORTB |= _BV(3);         /* with pullup */