SwAnalog Class Reference

 // *******************************************************************
 // SwAnalogInput Library example program
 //  mbed no analog port de 3hon no sw wo ninsiki suru.
 //  6hon no analog port (p15 - p20) de 6 * 3 = 18 ko no sw ninsiki ga dekiru.
 //
 // <schematic>
 //   -.- mbed VOUT(+3.3[V])
 //    |                                               |--------------------> mbed p20(ADinput)
 //    |   ---------       ---------       ---------   |   ---------
 //    .---| Rsw2  |---.---| Rsw1  |---.---| Rsw0  |---.---| Rout  |----|
 //    |   ---------   |   ---------   |   ---------   |   ---------    |
 //    |     ----      |     -----     |     -----     |                |
 //    |-----o  o------.-----o  o------.-----o  o------|              -----
 //           SW2            SW1              SW0                      mbed GND(0[V])
 // 
 //  Rsw2 : 8.2[kohm], Rsw1 = 3.9[kohm], Rsw0 = 2.0[kohm], Rout = 1.0[kohm] (R no seido ha +-1[%])
 //
 // <program no naiyo>
 //  mbed LED1 : sw0 no level de tento  sw Off = led Off, sw On = led On
 //  mbed LED2 : sw1 no level de tento  sw Off = led Off, sw On = led On
 //  mbed LED3 : sw2 no level de tento  sw Off = led Off, sw On = led On
 //  mbed LED4 : sw0,sw1,sw2 no Off kara On henka de led tento jotai wo hanten.
 //
 // 
 // <rireki>
 // 2012/02/12 : syohan
 // *********************************************************************

 #include "mbed.h"
 #include "SwAnalog.h"

 DigitalOut led1(LED1);
 DigitalOut led2(LED2);
 DigitalOut led3(LED3);
 DigitalOut led4(LED4);

 SwAnalog sw(p20);  // p20(adinput) :sw0,sw1,sw2
                   
 int main() {
     while(1) {
         // sw level and edge data refresh
         sw.refreshEdgeData();
         
         // tact action (sw0 level = on : led1 = on)
         led1 = sw.checkLevel(0);
         
         // tact action (sw1 level = off : led2 = on)
         led2 = sw.checkLevel(1);
         
         // tact action (sw2 level = off : led3 = on)
         led3 = sw.checkLevel(2);
         
         // toggle action (sw0 to sw3 level Off to On : led4 invert )
         if((sw.checkEdgeOn(0) == 1)   // sw0
         || (sw.checkEdgeOn(1) == 1)   // sw1
         || (sw.checkEdgeOn(2) == 1)   // sw2
         ){
              led4 = !led4;
         }
     }
 }