// MPU6050 example
// https://wokwi.com/arduino/projects/305937248748044864

#include <Adafruit_MPU6050.h>
#include <Adafruit_Sensor.h>
#include <Wire.h>

Adafruit_MPU6050 mpu;

const int ledPin = 11;
const int terskel = 5000;
bool aktiv = false;
bool blink = false;
unsigned long sistAktiv = 0;
unsigned long forrige = 0;

void setup(void) {
  Serial.begin(115200);

  while (!mpu.begin()) {
    Serial.println("MPU6050 not connected!");
    delay(1000);
  }
  pinMode(ledPin, OUTPUT);
  Serial.println("MPU6050 ready!");
}

sensors_event_t event;

void loop() {
  mpu.getAccelerometerSensor()->getEvent(&event);
  unsigned long timer = millis();
  float ax = event.acceleration.x;
  float ay = event.acceleration.y;

  if ((abs(ax) > 8.0) || (abs(ay) > 8.0)) {
    aktiv = true;
    sistAktiv = timer;
  }
  
  if ((timer-forrige >= 249) && (aktiv || (timer-sistAktiv < terskel))) {
    blink = !blink;
    digitalWrite(ledPin, blink);
    forrige = timer;
  }
  
  if ((timer-sistAktiv > terskel)) {
    aktiv = false;
    digitalWrite(ledPin, LOW);
    Serial.println("Sykkel er parkert");
  }

  Serial.print("[");
  Serial.print(millis());
  Serial.print("] X: ");
  Serial.print(event.acceleration.x);
  Serial.print(", Y: ");
  Serial.print(event.acceleration.y);
  Serial.print(", Z: ");
  Serial.print(event.acceleration.z);
  Serial.println(" m/s^2");
  delay(10);
}