Components Needed
- Arduino Board: Options like Arduino Uno or Nano.
- Sensors:
- Ultrasonic sensor for obstacle detection.
- IR sensors for line following (if needed).
- Motors:
- DC motors or servo motors for movement.
- Motor driver (like L298N) to control motors.
- Chassis: A robot chassis to hold the components.
- Power Supply: Batteries or a power bank.
- Additional Electronics:
- Jumper wires and a breadboard.
- LEDs for indicators (optional).
- Camera Module: For capturing images of text.
- Wi-Fi Module (ESP8266): For sending data online.
- SD Card Module: If you want to store data locally.
Steps to Build the Article Robot
-
Design the Chassis:
- Assemble the motor mounts and wheels on a suitable base.
- Attach the Arduino board, battery, and modules securely.
-
Set Up the Motors:
- Connect motors to the motor driver and establish a connection to the Arduino.
- Program basic motor movements (forward, backward, turn).
-
Incorporate Sensors:
- Attach the ultrasonic sensor to the front for distance measurement.
- Implement code to avoid obstacles or line follow if using IR sensors.
-
Camera Integration:
- Mount the camera module to capture articles or text.
- Use Optical Character Recognition (OCR) software to extract text from images (e.g., Tesseract).
-
Networking:
- Set up the Wi-Fi module to send data to a server or store it on an SD card.
- You may want to implement a simple web server on the ESP8266 to access the data remotely.
-
Programming:
- Write the Arduino code to control motors, read sensors, and process images.
- Consider creating functions for movement, scanning articles, and data transmission.
-
Testing:
- Run tests to ensure functionality.
- Iterate on the design and code based on performance.
-
Enhancements (Optional):
- Add speech recognition to issue commands.
- Implement advanced AI to summarize articles directly.
Example Code
Here’s a simple code snippet to get you started with motor control and ultrasonic sensor integration:
cpp
#include <AFMotor.h>
AF_DCMotor motor1(1); // Assign motor to port 1
AF_DCMotor motor2(2); // Assign motor to port 2
const int ultrasonicTrigger = 9;
const int ultrasonicEcho = 10;
void setup() {
Serial.begin(9600);
pinMode(ultrasonicTrigger, OUTPUT);
pinMode(ultrasonicEcho, INPUT);
}
void loop() {
long distance = measureDistance();
Serial.print("Distance: ");
Serial.println(distance);
if(distance < 20) {
motor1.setSpeed(0);
motor2.setSpeed(0);
// Add logic for avoiding obstacle
} else {
motor1.setSpeed(255);
motor2.setSpeed(255);
}
delay(100);
}
long measureDistance() {
digitalWrite(ultrasonicTrigger, LOW);
delayMicroseconds(2);
digitalWrite(ultrasonicTrigger, HIGH);
delayMicroseconds(10);
digitalWrite(ultrasonicTrigger, LOW);
return pulseIn(ultrasonicEcho, HIGH) * 0.034 / 2;
}
Conclusion
Robot with Arduino is a rewarding project that allows you to explore robotics, programming, and data processing. With creativity, you can expand its capabilities by integrating more advanced features. Happy building!
