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My first arduino rover.

Robot – work in progress
 
pt3r's picture
By pt3r
@ October 30, 2009
Navigate around via ping))) ultrasound detector.

This is my first robot rover I built with an arduino duemilanove and an Adafruit motorshield. It is not my first attempt however. The motors, tracks and metal frame were bought as a kit. The rover uses a Parallax Ping))) sensor to detect objects.

I plan to add infrared refectors and bumper switches in the future to make sure it does not drive of the table.

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By pikaj00
@ Sat, 2010-01-09 06:23
i was wondering if you could share your full code. im still working on mine id like to see how you did yours if possible. thanks
By pikaj00
@ Wed, 2009-12-30 00:58
hi there i to am building the same exact rover. but i have bitten off more than i chew im not a great coder. i was wondering if you could let me see your code for the sensor loop. i know how to read the sensor and make the vehicle move i use the adafruit motor/sensor shield. do you use an "if" statement to in affect force the rover to drive backwards when it reaches a object. if you dont want to show me your code thats fine but i would appreciate your help.
By pt3r
@ Wed, 2009-12-30 20:34
pt3r's picture

This is the main loop of my rover code:

void loop() {
  lookForward(); // position robot head so it looks forward

  while(distanceInCentimeters() > FORWARD_TRESHOLD) {
    moveForward();
    delay(500);
  }

  stopMotors();
  scanAround();  // find an exit

  if(leftScan > LEFT_TRESHOLD) {
    if( leftScan >= rightScan) {
      turnLeft();
    } else {
      turnRight();
    }
  } else if(rightScan > RIGHT_TRESHOLD) {
    if(rightScan > leftScan ) {
      turnRight();
    } else {
      turnLeft();
    }
  } else {
    // move backwards until the robot can make a turn
    do {
      moveBackward();
      scanAround();
    }
    while(leftScan <= LEFT_TRESHOLD && rightScan <= RIGHT_TRESHOLD);

    if(leftScan > LEFT_TRESHOLD) {
      turnLeft();
    } else {
      turnRight();
    }
  }
}
By protagonist
@ Tue, 2009-11-03 18:08

nice bot. video would be great. it looks nearly like my bot. i look for a task .. cause only drive around is lame

greez from germany