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remote-controlled-radar-system-c258ea-en.md

This is my first project using Arduino. Basically, it is a radar system that can detect objects within a certain distance. The system has light indicators with red being too close, yellow is mid-range, and green indicates that the object is far enough (within the safe distance). It also makes sound when the object is too close (red warning).

I posted the video talking more in details about how the system works, you can check it out here:

How It Works

This system uses an IR Remote Control or a Bluetooth App to override the automatic scanning:

  1. Auto Mode: The servo sweeps 0 to 180 degrees using the ultrasonic sensor.
  2. Manual Mode: The user can "steer" the sensor left or right and trigger a "snapshot" measurement.
  3. Data Feedback: The ultrasonic data is plotted on a PC using Processing, showing the user exactly what's in front of the sensor.

Hardware Components

  • Arduino Uno: The mission controller.
  • HC-SR04 Ultrasonic Sensor: For distance detection.
  • SG90 Servo Motor: For the scanning movement.
  • IR Receiver and Remote: For manual override.
  • Processing Software: For the computer-side radar screen.

The Software Logic

The code utilizes Interrupts or a state machine to switch between "Auto Sweep" and "Manual Control" without lag. This makes the radar feel responsive, allowing you to use it as a precision measurement tool or a general security scanner.

ข้อมูล Frontmatter ดั้งเดิม 

apps:
  - "1x Arduino IDE program"
author: "andy_huynh"
category: "Sensors & Environment"
components:
  - "1x ELEGOO UNO R3 Board"
  - "1x Jumper wires (generic)"
  - "1x Micro servo SG90"
  - "1x 5V Power Supply Module"
  - "3x LED Lights"
  - "1x 9V Battery with clip"
  - "1x Ultrasonic Sensor - HC-SR04"
  - "1x Active Buzzer"
  - "3x Resistor 220 ohm"
  - "1x Remote and IR receiver"
description: "Take control of your area! Upgrade the classic RADAR project with a wireless remote control to adjust scanning angles and range manually."
difficulty: "Intermediate"
documentationLinks: []
downloadableFiles:
  - "https://projects.arduinocontent.cc/52e957c5-7df8-49e3-8ef9-4c09ee7d2fd1.ino"
  - "https://projects.arduinocontent.cc/ad1a9727-ec2f-4e78-a77c-a6ee6272c451.pde"
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heroImage: "https://cdn.jsdelivr.net/gh/bigboxthailand/arduino-assets@main/images/projects/remote-controlled-radar-system-c258ea_cover.jpg"
lang: "en"
likes: 3
passwordHash: "167b15337d9a034ad199f14d58663b11472984f959b4a2a359796d8a5100299b"
price: 1499
seoDescription: "Build a Remote Controlled Radar System with Arduino and sound effects. DIY project for electronic hobbyists."
tags:
  - "Communication"
  - "Environmental Sensing"
  - "Monitoring"
  - "Remote Control"
  - "Security"
title: "Remote Controlled Radar System"
tools: []
videoLinks:
  - "https://youtu.be/25YTLYcP-WQ"
views: 2938