开云体育

No Raduino here, but do have a Nano to play with. ?Here's a code scrap to replace that final clause in doTuning() to give the tuning pot a bit of hysterisis. ?Perhaps somebody could try it out.

  // the tuning knob is at neither extremities, tune the signals as usual
  else if (knob != old_knob){
    static char dir_knob;
    if ( (knob>old_knob) && ((dir_knob==1) || ((knob-old_knob) >5)) ||
         (knob<old_knob) && ((dir_knob==0) || ((old_knob-knob) >5)) )   {
       if (knob>old_knob) {
            dir_knob=1;
            frequency = baseTune + (50l * (knob-5));
       } else {
            dir_knob=0;
            frequency = baseTune + (50l * knob);
       }
       old_knob = knob;
       setFrequency(frequency);
       updateDisplay();
    }
o
   tone(CW_TONE, sideTone);
   tone(6, 1000);

Also, if you want a 1000hz square wave on pin 6 as a test signal, just execute this line somewhere:

? ? tone(6,1000);

That sets up a counter-timer to continuously generate the square wave while the Nano goes off and does other things.

Shut it down with

? ? noTone();

Jerry, KE7ER