This project is solving the Karkhana Rover challenge. Description
Project Title: BinaryEdu Robot Team: Karak. Aim of the project: Educate children mathematics, science and coding by robots.
For now, many educational robots for kids exist, but most of them have a pure graphical user interface, and teach only programming concepts. For this year’s project, we created an Arduino-based robot that have two servos, and can be controller to move forward, backward, left and right. Therefore, two parameters control the movements of the robot: the direction and how many steps should it take in that specific direction.
There are generally two methods to interact with the robot: - The hardware method, which we use DIP switches or the control glove to input a binary number, that gets converted into an integer for the steps number. Then, we press one of four switches (up, down, left or right) which tells the robot what direction to move - The software-based method, where a program (based on processing) was created. A window, that is designed to look and function like a terminal, pop-up. Then, the kids can enter the control statements, view a help terminal-like help window, and even change the design of the window!
Pictures: a general look at the project: http://goo.gl/rvwIMX the small robot: http://goo.gl/ZW6MkY the control panel: http://goo.gl/OChvQI
Kids can use this robot to drive it throughout a maze, to reach the end of it. 2 mazes were created for testing: 1- a maze were kids drive the robot, reach a small target, take it, then go for the end. the "rock" was made from paper and magnets. a magnet attached to the robot attracts the rock and holds it. picture: http://goo.gl/dRjVAq 2- a maze-like table of numbers, can be used to teach kids addition and subtraction of numbers that can be input to the robot. picture: http://goo.gl/AvqI4C
The control glove is a normal glove, with flex sensors mounted on the fingers. When the finger is bent, the resistance of the flex sensor changes and can be read through the Arduino. Using this ability, we know each finger, whether it is an open or close (one or zero). 3 fingers are used for the input, which equals 3-bit input. Thumb, index finger, and the middle finger were used. picture: http://goo.gl/zqykLf
The other control method, DIP switches, are just 3 DIP switches aligned to create a 3-bit inpit.
The software control –the terminal- is a window that kids can enter their control statmens in the form of (direction > enter > steps) i.e. (move right press enter 3 press enter).
Used Equipment: Software: Arduino Software Processing software
Hardware: 1x Arduino UNO 5x Flexes sensors 2xContinous rotation Servo motors 3x LEDs 5x 10 K ohm resistor 4x 330 ohm resistor Breadboard (1x 9V to Barrel Jack Adapter) optional (1x 9V Battery) optional 3x Push buttons Cytron frame and tires
Cost: 80$ to 90$ (Depends on verity of sensors and tools)
Power Consumption: 5 volts for the Arduino (provided by the USB) , and 5 volts DC source for the Servos.
License: GNU General Public License version 3.0 (GPL-3.0)
Source Code/Project URL: https://github.com/11maxed11/BinaryEdu-robot
Schematic - http://www.4shared.com/office/0ePPFnBrba/Schematic.html
Youtube 2-min video - http://www.youtube.com/watch?v=gV1Xvw8Bn-Q