using lcd 4 digit 7 segment

Other Hardware Displays
1 
#include <SevenSegment.h>

#define CLOCK 44 // Arduino digital 44 -> AY0438 clock
#define DATA 46   // Ardino digital 46 -> AY0438 data
#define LOAD 45  // Ardino digital 45 -> AY0438 load

SevenSegment screen(CLOCK, DATA, LOAD);

uint16_t counter = 0;

void setup(){

if i use arduino nano instead arduino mega, which pin for data, clock and load ?

i think to use clock = A4
but i don't know the other
can someone suggest me?
thanks
roberto

2

I think that you can use any pins. Just make sure that the pins chosen are the ones inserted into the pin defines.

#define CLOCK 44 // Arduino digital 44 -> AY0438 clock
#define DATA 46   // Ardino digital 46 -> AY0438 data
#define LOAD 45  // Ardino digital 45 -> AY0438 load

Replace 44, 45, 46 with the pin numbers that you choose.

And, yes, it is perfectly fine to use the analog inputs (A0 - A5) as digital pins.

Note that A6 and A7 may NOT be used as digital pins.