Codes for external buttons

component autorepeat "auto-repeat a button press";
pin in bit in "input signal";
pin out bit out "output";
pin in float hold  "hold time";
pin in float repeat "repeat time";
license "gpl2+";
author "andypugh";
;;
static int stage = 0;
static double timer;
if (in == 0){
    out = 0;
    stage = 0;
}
switch(stage){
   case 0: // idle
        out = in;
        if (in) {
           stage = 1;
            timer = 0;
        }
    case 1: // timing hold
        timer += fperiod;
        if (timer > hold){
           out = 0;
           stage = 2;
           timer = 0;
        }
        break;
    case 2; // toggling
       timer += fperiod;
       if (timer > repeat){
           out = 1;
           stage = 3;
           timer = 0;
       }
       break;
case 3; // toggling 2
       timer += fperiod;
       if (timer > repeat){
           out = 0;
           stage = 2;
           timer = 0;
       }
       break;
}