Published July 6, 2016 © GPL3+

Arduino-based Obstacle Monitoring System

Vehicle dashboard monitor.

IntermediateShowcase (no instructions)6,998

Arduino-based Obstacle Monitoring System

Things used in this project

Hardware components

Arduino UNO

Adafruit Standard LCD - 16x2 White on Blue

Infra Red Obstacle Sensor

12VDC & 1 Amp Adapter

Jumper wires (generic)

Software apps and online services

Arduino IDE

Story

The proposed system is a monitoring display system which is placed on the vehicle’s dashboard to monitor the obstacle’s presence on the blind spot while roaming and parking. Obstacle avoidance sensors placed on the blind spots of the vehicles and its analog outputs are fed to the Arduino Uno microcontroller board. After processed that the obstacle detection is viewed by one LCD by indication.

This system consists of one Arduino microcontroller board, four obstacle avoidance sensor and one 16x2 character liquid crystal display. Obstacle sensors outputs are fed to Arduino microcontroller’s analog channel lines. LCD is used to indicate the visual representation of the obstacles. LCD receives the command data and user data are sent by Arduino board through digital lines.

Hardware prototype

Code

Code

#include <LiquidCrystal.h>
const int FROS = A1;
const int FLOS = A2;
const int RROS = A3;
const int RLOS = A4;
int FR = 0;
int FL = 0;
int RR = 0;
int RL = 0;
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);
void setup()
{
  lcd.begin(16, 2);  
  pinMode(FROS, INPUT);
  pinMode(FLOS, INPUT);
  pinMode(RROS, INPUT);
  pinMode(RLOS, INPUT);
  Serial.begin(9600);
}
void loop()
{
  FR = analogRead(FROS);
  Serial.println(FR);
  FL = analogRead(FLOS);
  RR = analogRead(RROS);
  RL = analogRead(RLOS);
  lcd.setCursor(1, 0);          
  lcd.print("FR  FL   RR  RL"); 
  if (FR <= 500 && FL <= 500  && RR <= 500 && RL <= 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("No Obstacle    ");
  }
  else if (FR > 500 && FL <= 500  && RR <= 500 && RL <= 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("XX             ");
  }
  else if (FR <= 500 && FL <= 500  && RR <= 500 && RL > 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("             XX");
  }
  else if (FR <= 500 && FL <= 500  && RR > 500 && RL <= 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("         XX    ");
  }
  else if (FR <= 500 && FL <= 500  && RR > 500 && RL > 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("         XX  XX");
  }
  else if (FR <= 500 && FL > 500  && RR <= 500 && RL <= 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("    XX          ");
  }
  else if (FR <= 500 && FL > 500  && RR <= 500 && RL > 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("    XX       XX");
  }
  else if (FR <= 500 && FL > 500  && RR > 500 && RL <= 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("    XX   XX    ");
  }
  else if (FR <= 500 && FL > 500  && RR > 500 && RL > 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("    XX   XX  XX");
  }
  else if (FR > 500 && FL <= 500  && RR <= 500 && RL <= 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("XX             ");
  }
  else if (FR > 500 && FL <= 500  && RR <= 500 && RL > 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("XX           XX");
  }
  else if (FR > 500 && FL <= 500  && RR > 500 && RL <= 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("XX       XX    ");
  }
  else if (FR > 500 && FL <= 500  && RR > 500 && RL > 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("XX       XX  XX");
  }
  else if (FR > 500 && FL > 500  && RR <= 500 && RL <= 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("XX  XX         ");
  }
  else if (FR > 500 && FL > 500  && RR <= 500 && RL > 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("XX  XX       XX");
  }
  else if (FR > 500 && FL > 500  && RR > 500 && RL <= 500)
  {
    lcd.setCursor(1, 1);
    lcd.print("XX  XX   XX    ");
  }
  else
  {
    lcd.setCursor(1, 1);
    lcd.print("Call Help ......  ");
  }
}