fixing a value to 4 digits

would able me fixing value 4 digits regardless of it's value? i'm using rotary encoder increment newleft sent sent via serial external device. problem needs 4 digits, ie 002f instead of 2f.

code: [select]


#include <encoder.h>

encoder knobleft(0, 1);

void setup() {
  serial.begin(9600);
  delay(2000);
  serial.println("testing 1 encoder minimum/maximum values");
  knobleft.write(513);                        //setting default value knobleft
}

  int positionleft = -999;                   
 
void loop() {
  int newleft = knobleft.read();                    //read encoder
      newleft = map(newleft, 0, 1000, 0, 10239);    //remap input value useable range
      newleft = constrain(newleft, 0, 10239);       //contrain new value not report out of range values
  int valleft = newleft * 100 / 10239;               //convert newleft percentage lcd reporting

     
  if (newleft != positionleft) {
    serial.print("left = ");
    serial.print(valleft);                    //print valleft lcd (future)

    serial.print("  send command = ");
    serial.print(newleft, hex);               //send newleft value in hex external device
    serial.println();
 
   
    positionleft = newleft;                   
  }
 
   

}


are asking "how defeat leading 0 suppression?" ?

the simplest way leave print routines are, , print leading zeroes yourself.

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