#include "HX711.h"
#include <Servo.h>

Servo Servo1;  
Servo Servo2; 

HX711 scale;

const int ledCount = 10;

int ledPins[] = {
  1, 2, 3, 4, 5, 6, 7, 8, 9, 10
};


void setup() {
  Serial.begin(9600);
  Servo1.attach(13);
  Servo2.attach(12);
  Servo2.write(90);
  Servo2.write(0);
  for (int thisLed = 0; thisLed < ledCount; thisLed++) {
    pinMode(ledPins[thisLed], OUTPUT);
  }
  scale.begin(A1, A0);
}

void loop() {
  float weight = scale.get_units()/420;
  int ledLevel = (weight-0.1)/5+1;
  Serial.println("当前重量(kg):");
  Serial.println(weight,1);
  for (int thisLed = 0; thisLed < ledCount; thisLed++) {
    if (thisLed < ledLevel) {
      digitalWrite(ledPins[thisLed], HIGH);
    }
    else {
      digitalWrite(ledPins[thisLed], LOW);
    }
  }
  if (scale.get_units()/420> 40){
    tone(11,8000,50);
    tone(11,4000,20);
    tone(11,6000,30);
    tone(11,4000,400);
    Servo1.write(90);
    Servo2.write(0);
    Serial.println("超重");
    for (int thisLed = 8; thisLed < ledCount; thisLed++) {
      if (thisLed < ledLevel) {
        digitalWrite(ledPins[thisLed], HIGH);
        digitalWrite(ledPins[thisLed], LOW);
        }
      else {
        digitalWrite(ledPins[thisLed], LOW);
      }
    }
  }
  else if (scale.get_units()/420<= 40 && digitalRead(A2) == HIGH){
    Servo2.write(22.5*ledLevel);
    Servo1.write(0);
    Serial.println("正在进入货道:");
    Serial.println(ledLevel);
    delay(2000);
    Servo1.write(90);
  }
  delay(1000);
}