Arduino Autonomous Robot Car

A versatile robotic platform built for ETTI UPT coursework, featuring dual-mode functionality: autonomous navigation and manual Bluetooth control.

Features

• Autonomous Mode: Uses an ultrasonic/IR sensor to detect obstacles, with automatic maneuver logic.
• Visual Feedback: RGB LED system indicating current state (Strobe Green for movement, Blue for obstacle alert, Disco mode when stopped).
• Acoustic Feedback: Integrated buzzer for immediate obstacle detection alert.
• Manual Control: Fully remote-controllable via Bluetooth (HC-05) using a smartphone app.
• Multitasking: Code optimized using millis() instead of delay() for smooth execution.

Hardware Used

• Arduino Mega 2560
• L298N Motor Shield
• HC-05 Bluetooth Module
• Sharp Distance Sensor
• RGB LED Module & Buzzer

Project Documentation

You can find the detailed presentation and circuit diagrams in the docs/ folder of this repository.

Usage

1. Connect via Bluetooth using the 1234 PIN.
2. Use the mobile app to send:
   • F - Forward
   • B - Backward
   • S - Stop
   • A - Switch to Autonomous Mode