abhikpal

/*
 * Joystick and the serial monitor.
 *
 * This sketch outputs data from the joystick at 9600 baud to the 'Serial Monitor' (the serial 
 * monitor needs to be opened to view this data).
 *
 * CIRCUIT:
 *     - Joystick VCC to Arduino 5V, joystick GND to Arduino GND
 *     - Joystick vertical axis to A0, horizontal to A1
 *     - Joystick pushbutton connected to digital pin 2 using a pull-up resistor

abhikpal

/*
 * OBSTACLE AVOIDER ROBOT
 *
 * A simple Arduino based obstacle avoider robot that uses two infrared distance sensors to
 * "look for" obstacle and change its behavior accordingly. If the robot detects an obstacle to its
 * left, it turns clockwise; if the obstacle is on the right, it turns anti-clockwise; and moves
 * forward if no obstacle is found.
 * 
 * Abhik Pal
 * (abhik@ardubotics.com)

abhikpal

/*
 *  Music Visualizer ver2
 *  This sketch extracts values from the input audio stream
 *  which happens to give the same values as our output
 *  stream as "Stereo Mix" has been set as the default device.
 *  The values are used to draw waveforms representing the
 *  average, left and right channels and send the values to an
 *  Arduino which changes the brightness of a LED.
 *  This is an upgrade to the previous Music Visualizer Project
 *  at : http://theblubot.blogspot.com/2014/01/simple-music-visualizer.html

abhikpal

/*
 * A Simple Monochromatic sound Visualizer
 *
 * This sketch plays a sound and sends the average 
 * values in the audio buffer as integer values to the arduino
 * where an LED changes its brightness based on the values sent.
 *
 * This project is an extension to the "Glowing Dodecahedron"
 * project and adds a bit of functionality to the dodecahedron.
 * The "Glowing Dodecahedron" project is available with instructions

abhikpal

/*
 * Interfacing Arduino from Processing
 * Example 1 Arduino Sketch
 * 
 * The Arduino listens for any data on the serial buffer.
 * If any data is received it is stored in a char-variable.
 * If the received value is 'H' then the led is turned on and
 * if the received value is 'L' then the LED is turned off.
 * No action is taken for other values.
 *

abhikpal

/*
 *  	The Clock Problem
 *	To find the time when the hands of a clock make a specified angle.
 * 	
 *	based on equation given by Khan Academy(www.khanacademy.org) user Just Keith
 *	M = (2/11) * (30*H +- 90) 
 * 
 *	Code by Abhik Pal
 * 	17th September 2013
 */

abhikpal

/*
 * Arduino Code for 
 * Simple Talking Intruder Alert System
 * 
 * Abhik Pal
 */

#define pirPin 7 // PIR Sensor connected to pin 7
#define ledPin 13 // LED connected to pin 13