Published May 16, 2019

Smart Gate for Smart Parking

This project is about automatic doorstop and vehicle counters.

BeginnerProtip5,315

Things used in this project

Hardware components

Photodiode, 20 °

Laser Diode, Visible

SG90 Micro-servo motor

Seeed Studio Grove - 16 x 2 LCD (White on Blue)

Arduino UNO

Jumper wires (generic)

Through Hole Resistor, 30 kohm

Custom PCB

Software apps and online services

Arduino IDE

Microsoft Windows 10

Story

This project about automatic doorstop and vehicle counters. With the following statement:

1. Vehicle coming

2. The laser light to the photodide is blocked, the photodiode surface darkens

3. On LCD, Total parking increases by 1 and total entry increases by 1

4. The doorstop will open for 7 seconds then closes again

5. Then the vehicle goes into the parking lot

6. Push button pressed

7. LCD displays Exit increases by 1 and total parking decreases 1

8. The doorstop will open for 7 seconds then closes again

9. Vehicle away

A. Electronic Circuit

B. Design sketch

C. Steps to make It

Prepare tools according the list

Solder all components in the PCB

check for errors in the circuit

Coding in the Arduino IDE software

Run it

Code

Smart gate for smart parking

#include <Servo.h>
#include <LiquidCrystal.h>
int hasil,jumlah1,total,nilai,jumlah2;
const int rs = 7, en = 8, d4 =12, d5=11, d6=10, d7=9;  
LiquidCrystal lcd (rs,en,d4,d5,d6,d7);  
Servo myservo;    //Inisialisasi servo 1
Servo myservo2;   //Inisialisasi servo 2

void setup() {
myservo.attach(13);   //Pin mode arduino servo 1
myservo2.attach(6);   //Pin mode arduino servo 2
Serial.begin(9600);  
pinMode(5, INPUT_PULLUP);   //Pin 5 arduino sebaai input pada kondisi pull up
pinMode(A0,INPUT);    
lcd.begin (16,2); 
lcd.print("MIKROKONTROLER 2 ! ");
delay(1000);  
lcd.clear();  
lcd.setCursor(4,0);   
lcd.print("Total=");  
lcd.setCursor(0,1);   
lcd.print("IN=");   
lcd.setCursor(8,1);  
lcd.print("OUT=");  
}
void loop() {
  hasil=analogRead(A0);   
  Serial.println(hasil);    

  if (hasil > 700)    
  {
    myservo.write(90);  
    jumlah1++;    1
    total++;  
    lcd.setCursor(4,1);   
    lcd.print(jumlah1);   
    lcd.setCursor(11,0);  
    lcd.print(total);  
    
    delay(7000);   
    }
    else {    
      myservo.write(0); 
      }
if (digitalRead(5)==LOW)   
  {while(digitalRead(5)==LOW){}   
    total--;    
    jumlah2++;    
    lcd.setCursor(13,1);    
    lcd.print(jumlah2);  
    lcd.setCursor(11,0);    
    lcd.print(total);   
    myservo2.write(90);   
    delay(7000);    
    myservo2.write(0);   
}
else { myservo2.write(0);}
    }