Hey Folks...

I am back after 2 and more months with a new project.

In this project I made a RADAR that keeps on tracking the obstacles or enemies.

You may say what is new in this project..??

In this you can monitor with the help of an android app.

You can download it.

Meanwhile you can subscribe my channel for more videos like this..

"Electronics is Fun"

Pocket Telemetry: Mobile Radar Mapping

The "Arduino Radar with Processing" project requires dragging a laptop around to view the green radar sweep. The Mobile Radar project untethers the system. It replaces the heavy Java processing application with a lightweight Android App (often built using MIT App Inventor), letting you view the sonar sweep live on your tablet!

Untethered Bluetooth Data Blasts

The hardware remains identical to the radar project, but the communication protocol changes.

1. The base station (Arduino + HC-SR04 + Servo) gathers the Angle and the Distance.
2. Instead of writing over the USB Serial cable, it utilizes SoftwareSerial to blast the data directly into an HC-05 Bluetooth transceiver.
3. bluetooth.print(angle); bluetooth.print(","); bluetooth.print(distance); bluetooth.print("*");
4. The * acts as an "End of Packet" marker.

Building the Android Parser (MIT App Inventor)

You must build an Android app capable of capturing Bluetooth streams.

1. Utilizing MIT App Inventor, you drag and drop graphical blocks.
2. A "Bluetooth Client" block connects to the HC-05.
3. A "Clock Timer" block fires every 50 milliseconds, reading the incoming string up to the * delimiter.
4. Drawing the Blip: The App Inventor Canvas element utilizes basic math (X = center_X + Distance * Cos(Angle)). It draws a red pixel at the calculated X/Y coordinate on your phone screen!

Critical Components

• Arduino Uno/Nano, SG90 Servo, HC-SR04 Ultrasonic Sensor.
• HC-05 or HC-06 Bluetooth Module for wireless serial transmission.
• An Android Smartphone or Tablet.
• MIT App Inventor Web Account to quickly design and compile the custom .APK Android app.

Steps to make this project...

1. Gather all the components as shown in this video.

like Arduino, servo motor, ultrsonic sensor, Bluetooth module etc

2. Take double sided tape and stick servo motor and bluetooth module on the breadboard as shown.

2. It will look like this.

3. Connect Jumper wires on the ultrasonic sensor.

4. On the shaft of servo motor stick ultrasonic sensor as shown.

5. It will look like this.

6. Connections.

7. After connections it will look like this.

8. Take android mobile and download application.

9. It is this app and install it on mobile phone.

10. Open mobile phone bluetooth and see HC 05. connect it. Password will be 1234 or 0000.

11. Open app and see HC 05 is connected.

After that click start button and radar will rotate.

12. To understand this red and blue graph.

13. It will look like this...

You have successfully made Mobile Radar..

Now help me reach 1000 subscribers and more on YouTube...

Thanks...