#define LED 7
#define pbOn A0
#define pbOff A1

void setup() {
  pinMode(LED, OUTPUT);
  pinMode(pbOn, INPUT);
  pinMode(pbOff, INPUT);
}

void loop() {
  if (!digitalRead(pbOff)) {
    digitalWrite(LED, HIGH);
    while (!digitalRead(pbOff));
  }
  else if (!digitalRead(pbOn)) {
    digitalWrite(LED, LOW);
    while (!digitalRead(pbOn));
  }
}