fix: added apk and aia also updated readme

Author: SuhanVerse

AIOR.aia

@@ -100,7 +100,7 @@ void loop() {
     else if (bt_ir_data == 2) { backward(); }
     else if (bt_ir_data == 3) { turnLeft(); }
     else if (bt_ir_data == 4) { turnRight(); }
-    else if (bt_ir_data == 5) { Stop(); }
+    else if (bt_ir_data == 5 || bt_ir_data == 0) { Stop(); } // 0 or 5 = Stop
 
     // Voice control (momentary)
     else if (bt_ir_data == 6) { turnLeft();  delay(400); bt_ir_data = 5; Stop(); }
@@ -189,7 +189,7 @@ void sweepServo(int startAngle, int endAngle, int step) {
       delay(20);
     }
   } else {
-    for (int a = startAngle; a >= endAngle; a += step) {
+    for (int a = startAngle; a >= endAngle; a -= step) {
       scanServo.write(a);
       delay(20);
     }
@@ -239,7 +239,7 @@ void Check_side() {
   delay(150);
   distance_R = Ultrasonic_read();
 
-  // Return center
+    // Return center
   sweepServo(0, 70, 5);
   delay(150);
 

AIOR.apk

@@ -2,10 +2,13 @@
 
 _A Line Follower + Obstacle Avoiding Robot Car Controlled by IR Remote & Mobile App_
 
-![Arduino](https://img.shields.io/badge/Arduino-UNO-blue?logo=arduino)  
-![License](https://img.shields.io/badge/License-Apache%202.0-green)  
-![Platform](https://img.shields.io/badge/Platform-Arduino%20IDE-orange)  
-![Status](https://img.shields.io/badge/Status-Active-brightgreen)
+<div>
+
+![Arduino](https://img.shields.io/badge/Arduino-UNO-blue?logo=arduino)
+![License](https://img.shields.io/badge/License-Apache%202.0-green)
+![Platform](https://img.shields.io/badge/Platform-Arduino%20IDE-orange)
+
+</div>
 
 ---
 
@@ -60,11 +63,11 @@ This project is perfect for **students, hobbyists, and robotics enthusiasts** wh
 - **Microcontroller:** Arduino UNO
 - **Motor Driver:** L298N for left & right motors
 - **Sensors:**
-- IR sensors → Line following & obstacle detection
-- Ultrasonic sensor → Distance measurement
+  - IR sensors → Line following & obstacle detection
+  - Ultrasonic sensor → Distance measurement
 - **Control Modules:**
-- HC-05 Bluetooth → Mobile app control
-- IR Receiver → Remote control
+  - HC-05 Bluetooth → Mobile app control
+  - IR Receiver → Remote control
 - **Servo Motor:** Rotates ultrasonic sensor for scanning
 
 ---
@@ -73,11 +76,10 @@ This project is perfect for **students, hobbyists, and robotics enthusiasts** wh
 
 ### IR Remote
 
-- `+` → Move Forward
-- `-` → Move Backward
-- `>>|` → Turn Right
-- `|<<` → Turn Left
-- `>` → Stop
+- `▲` → Move Forward
+- `▼` → Move Backward
+- `▶` → Turn Right
+- `◀` → Turn Left
 - `1` → Obstacle Avoidance Mode
 - `2` → Line Follower Mode
 - `3` → Manual Mode
@@ -91,6 +93,25 @@ This project is perfect for **students, hobbyists, and robotics enthusiasts** wh
 
 ---
 
+## 🎮 Command Mapping Table
+
+| App Control (MIT Block)             | Data Sent (1‑Byte Number) | Arduino Code Interprets As | Robot Action                 |
+| ----------------------------------- | ------------------------- | -------------------------- | ---------------------------- |
+| **Forward (TouchDown)**             | `1`                       | `bt_ir_data == 1`          | Move Forward                 |
+| **Backward (TouchDown)**            | `2`                       | `bt_ir_data == 2`          | Move Backward                |
+| **Left (TouchDown)**                | `3`                       | `bt_ir_data == 3`          | Turn Left                    |
+| **Right (TouchDown)**               | `4`                       | `bt_ir_data == 4`          | Turn Right                   |
+| **Stop / Button Release (TouchUp)** | `0`                       | `bt_ir_data == 0` → Stop   | Stop Motors                  |
+| **Stop Button (optional)**          | `5`                       | `bt_ir_data == 5`          | Stop Motors                  |
+| **Voice Left**                      | `6`                       | `bt_ir_data == 6`          | Short Left Turn (momentary)  |
+| **Voice Right**                     | `7`                       | `bt_ir_data == 7`          | Short Right Turn (momentary) |
+| **Manual Mode**                     | `8`                       | `mode = 0`                 | Switch to Manual Control     |
+| **Line Follower Mode**              | `9`                       | `mode = 1`                 | Enable Line Following        |
+| **Obstacle Avoid Mode**             | `10`                      | `mode = 2`                 | Enable Obstacle Avoidance    |
+| **Slider (Speed Control)**          | `21–255`                  | `Speed = data`             | Adjust Motor Speed (PWM)     |
+
+---
+
 ## 📱 Mobile App Setup
 
 - Install the provided **APK** on your Android device
@@ -122,14 +143,20 @@ This project is perfect for **students, hobbyists, and robotics enthusiasts** wh
 
 ### Robot Car Build
 
-<img src="docs/robo_2.png" alt="Robot Car Front View" width="400"/>
-<img src="docs/robo_1.png" alt="Robot Car Back View" width="400"/>
+<p>
+  <img src="docs/robo_2.png" alt="Robot Car Front View" width="350"/>
+  <img src="docs/robo_1.png" alt="Robot Car Back View" width="350"/>
+</p>
+
+### 🎥 Full Demo on YouTube
+
+[![Demo Video](docs/play.png)](https://youtu.be/u6bmt4iUy5o?si=hHZo-fITO03jiOHA)
 
-### Full Demo on YouTube
+### Remote
 
-<a href="https://youtu.be/u6bmt4iUy5o?si=hHZo-fITO03jiOHA" target="_blank">
-  <img src="docs/play.png" alt="Demo Video" width="250"/>
-</a>
+<p>
+<img src="docs/ir_remote.png" alt="IR Remote" width="250"/>
+</p>
 
 ---