Face Drive Bot (App Guide)

Face Drive Bot

AI-Powered Eye Control Robot Documentation

Welcome to the official guide for the Eye Control Robot App. This innovative app uses your phone's camera and AI to control a hardware robot using only your eye movements.

📱 Complete User Guide

The Main Control Interface

1. Bluetooth Setup

• Step A: Turn on Phone Bluetooth.
• Step B: Pair with HC-05 (Pin: 1234).
• Step C: Open App > Tap Bluetooth Icon.

2. Eye Controls

• Look LEFT/RIGHT: Turns Robot.
• Look CENTER: Stops Robot.
• Look DOWN: Move Forward.
• Look UP: Move Backward.

⏸️ Pause & Lock Mode

Need a break? Blink twice quickly to PAUSE the controls. Blink twice again to RESUME.

🔧 Troubleshooting

Issue: Screen is Black/Frozen

Double-tap the "Switch Camera" button to reset the camera preview instantly.

Issue: "Not Connected" Error

Go to your phone's Settings > Bluetooth and pair the HC-05 manually before opening the app.

🤖 Robot Hardware Code

[Image of Arduino Bluetooth car wiring diagram]

Choose your microcontroller below, copy the code, and upload it to your robot.

Option 1: Arduino + HC-05

Wiring: HC-05 (TX→Pin 2, RX→Pin 3) | L298N (IN1-IN4 → Pins 8-11)

#include <SoftwareSerial.h>

SoftwareSerial myBT(2, 3); // RX, TX
const int IN1 = 8;
const int IN2 = 9;
const int IN3 = 10;
const int IN4 = 11;
String command = "";

void setup() {
  Serial.begin(9600);
  myBT.begin(9600);
  pinMode(IN1, OUTPUT); pinMode(IN2, OUTPUT);
  pinMode(IN3, OUTPUT); pinMode(IN4, OUTPUT);
  stopRobot(); 
  Serial.println("Robot Ready!");
}

void loop() {
  if (myBT.available()) {
    char c = myBT.read();
    command += c;
    
    if (command.indexOf("UP") >= 0) { moveForward(); command = ""; } 
    else if (command.indexOf("DOWN") >= 0) { moveBackward(); command = ""; } 
    else if (command.indexOf("LEFT") >= 0) { turnLeft(); command = ""; } 
    else if (command.indexOf("RIGHT") >= 0) { turnRight(); command = ""; } 
    else if (command.indexOf("STOP") >= 0) { stopRobot(); command = ""; }
  }
}

void moveForward() {
  digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW);
  digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW);
}
void moveBackward() {
  digitalWrite(IN1, LOW);  digitalWrite(IN2, HIGH);
  digitalWrite(IN3, LOW);  digitalWrite(IN4, HIGH);
}
void turnLeft() {
  digitalWrite(IN1, LOW);  digitalWrite(IN2, HIGH); 
  digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW);  
}
void turnRight() {
  digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW);  
  digitalWrite(IN3, LOW);  digitalWrite(IN4, HIGH); 
}
void stopRobot() {
  digitalWrite(IN1, LOW); digitalWrite(IN2, LOW);
  digitalWrite(IN3, LOW); digitalWrite(IN4, LOW);
}

Option 2: ESP32 (Internal Bluetooth)

Wiring: L298N (IN1-IN4 → GPIO 26, 27, 14, 12)

#include "BluetoothSerial.h"
BluetoothSerial SerialBT;

const int IN1 = 26;
const int IN2 = 27;
const int IN3 = 14;
const int IN4 = 12;
String command = "";

void setup() {
  Serial.begin(115200);
  SerialBT.begin("ESP32_Eye_Robot"); 
  pinMode(IN1, OUTPUT); pinMode(IN2, OUTPUT);
  pinMode(IN3, OUTPUT); pinMode(IN4, OUTPUT);
  stopRobot();
}

void loop() {
  if (SerialBT.available()) {
    char c = SerialBT.read();
    command += c;

    if (command.indexOf("UP") >= 0) { moveForward(); command = ""; } 
    else if (command.indexOf("DOWN") >= 0) { moveBackward(); command = ""; } 
    else if (command.indexOf("LEFT") >= 0) { turnLeft(); command = ""; } 
    else if (command.indexOf("RIGHT") >= 0) { turnRight(); command = ""; } 
    else if (command.indexOf("STOP") >= 0) { stopRobot(); command = ""; }
  }
}

void moveForward() {
  digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW);
  digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW);
}
void moveBackward() {
  digitalWrite(IN1, LOW);  digitalWrite(IN2, HIGH);
  digitalWrite(IN3, LOW);  digitalWrite(IN4, HIGH);
}
void turnLeft() {
  digitalWrite(IN1, LOW);  digitalWrite(IN2, HIGH); 
  digitalWrite(IN3, HIGH); digitalWrite(IN4, LOW); 
}
void turnRight() {
  digitalWrite(IN1, HIGH); digitalWrite(IN2, LOW); 
  digitalWrite(IN3, LOW);  digitalWrite(IN4, HIGH);
}
void stopRobot() {
  digitalWrite(IN1, LOW); digitalWrite(IN2, LOW);
  digitalWrite(IN3, LOW); digitalWrite(IN4, LOW);
}

👨‍💻 Developer Notes

Built with ❤️ by Jeyaram B using Android (Java) & ML Kit.

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Version 2025.1.0