TEA5767 Fm Radio Spirit Box

Projects Programming
8

As has already been pointed out, you could replace all this:

  radio.setFrequency(75.0); // pick your own frequency
  display.showNumberDec(750);
  radio.setFrequency(75.1); // pick your own frequency
  display.showNumberDec(751);
  radio.setFrequency(75.2); // pick your own frequency
  display.showNumberDec(752);
  radio.setFrequency(75.3); // pick your own frequency
  display.showNumberDec(753);
  . . .
  . . .
  radio.setFrequency(109.9); // pick your own frequency
  display.showNumberDec(109.9);

with something like this and still increment by 0.1 MHz :

for ( int i = 750 ; i < 1100 ; i++ ) {
  float freq = i/10.0 ;
  radio.setFrequency(freq); // pick your own frequency
  display.showNumberDec(i);
  // maybe also you want to wait here for a few ms
}

and to go backwards:

for ( int i = 1100 ; i >= 750 ; i-- ) {
  float freq = i/10.0 ;
  radio.setFrequency(freq); // pick your own frequency
  display.showNumberDec(i);
  // maybe also you want to wait here for a few ms
}