#include <Servo.h>
const int killswitch = 2;
const int brakeservosignal = 3;
static int state;


unsigned long lastRead;
int intervalDebounce = 50;
byte lastState = 1;

Servo brakeservo;

void setup() {
  // put your setup code here, to run once:
Serial.begin(9600);
pinMode(killswitch,INPUT);
brakeservo.attach(brakeservosignal);
brakeservo.write(90);
}
void loop() {
  // put your main code here, to run repeatedly:
  unsigned long now = millis();
  if (now - lastRead >= intervalDebounce){
    byte abyte = digitalRead(killswitch);
    if (abyte != lastState){
      lastRead = now;
      lastState = abyte;
    }
  }

  if (state != lastState){
  Serial.print("Button:");  
  Serial.print(lastState);
  Serial.print(" Servo:");
  Serial.println(lastState ? 30 : 150);
  brakeservo.write(lastState ? 30 : 150);
  state = lastState;
  }
}