const float ROFF = 100000000000.0;
const float RON_L  = 60.0;
const float RON_M  = 50.0;
const float RON_H  = 15.0;
const float LEAKAGE   = 0.000000000001;
const int A=1;
const int VEE=2;
const int GND=3;
const int EN=4;
const int B=5;
const int VCC=6;

bool enabled = false;

void setup() {
    chipName("Analog SPST Switch");
    logicFamily(CMOS);

    pin(A, "A", INPUT);
    pin(VEE, "Vee", INPUT);
    maxVoltage(VEE,0.5);
    pin(GND, "GND", GROUND);
    pin(EN, "En", INPUT | LINE_OVER);
    maxVoltage(EN,30);
    pin(B, "B", INPUT);
    pin(VCC, "Vcc", POWER);
    maxVoltage(VCC,7);

    //capacitance(A, B, LEAKAGE);
    resistance(A, B, ROFF, NON_LINEAR);
}

void loop() {
    float vcc=analogRead(VCC);
    float vee=analogRead(VEE);
    float vdelta=vcc-vee;
 
    maxVoltage(1,vcc);
    maxVoltage(5,vcc);
    
    bool en = !digitalRead(4);
    if (en != enabled) {
        if(vdelta<4.5) {
          resistance(1, 5, en ? RON_L : ROFF);          
        } else if(vdelta>=4.5 && vdelta<6) {
          resistance(1, 5, en ? RON_M : ROFF);
        } else {
          resistance(1, 5, en ? RON_H : ROFF);
        }

        enabled = en;
    }
}