Edward Patel epatel

## sense-camera.py
#!/usr/bin/python3

#
# Show camera on the sense hat.
#
# Grab a 96x64 image and then average down to 8x8 for the sense hat
#

import io
import time

## raspberrypi-tips.txt
Jessie -> Stretch
=================
$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get dist-upgrade

$ sudo sed -i /deb/s/jessie/stretch/g /etc/apt/sources.list
$ sudo sed -i /deb/s/jessie/stretch/g /etc/apt/sources.list.d/*.list

$ sudo apt-get update

## cd.html
<!DOCTYPE html>
<html>
<head>
<meta name="apple-mobile-web-app-capable" content="yes" />
<style>
html,body {
    height:100%;
}
body {
    display: table;

## enable_sigfpe.m
    fenv_t fe;
    if (fegetenv(&fe) != 0) {
        // error
    }

#if defined __arm__
    fe.__fpscr |= __fpscr_trap_divbyzero;
#elif defined __i386__
    fe.__control &= ~FE_DIVBYZERO;
    fe.__mxcsr &= ~_MM_MASK_DIV_ZERO;

## get-telldus-ip.sh
# Used in Mac OS X Teminal.app (bash)

ping -c 3 255.255.255.255 | grep from | awk '{ print "ping -c 1 -q " $4; }' | sed 's/://' | sort -u | bash > /dev/null ; arp -a | grep ac:ca | sed 's/^.*(//' | sed 's/).*//'

## quick-n-dirty-timer.h
#include <sys/time.h>
#define START_TIMER \
  struct timeval _tpStart; \
  struct timeval _tpEnd; \
  gettimeofday(&_tpStart, NULL)
#define STOP_TIMER \
  gettimeofday(&_tpEnd, NULL); \
  std::cout << "Time: " << (_tpEnd.tv_sec-_tpStart.tv_sec)+(_tpEnd.tv_usec/1000000.0-_tpStart.tv_usec/1000000.0) << "s" << std::endl

## vvector.h
/*
 * vvector.h
 *
 * FUNCTION:
 * This file contains a number of utilities useful for handling
 * 3D vectors
 *
 * HISTORY:
 * Written by Linas Vepstas, August 1991
 * Added 2D code, March 1993

## gist:4241968
/*
 * main.cpp
 *
 *  Created on: 08.12.2012
 *      Author: sk
 */

#include <iostream>
#include <windows.h>

## test.c
#include <stdio.h>

/* ----------------------------------------------------------------------
   This part declare all structs from the "the-structs.def" file
 */

#define STRUCT_BEGIN(_name) struct _name {
#define STRUCT_END(_name) };
#define STRUCT_FIELD(_type, _name) _type _name;

## get_pixel_values.m
CGImageRef image = uiimage.CGImage;
NSUInteger width = CGImageGetWidth(image);
NSUInteger height = CGImageGetHeight(image);

// Setup 1x1 pixel context to draw into
CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
unsigned char rawData[4];
int bytesPerPixel = 4;
int bytesPerRow = bytesPerPixel;
NSUInteger bitsPerComponent = 8;
	#!/usr/bin/python3

	#
	# Show camera on the sense hat.
	#
	# Grab a 96x64 image and then average down to 8x8 for the sense hat
	#

	import io
	import time
	Jessie -> Stretch
	=================
	$ sudo apt-get update
	$ sudo apt-get upgrade
	$ sudo apt-get dist-upgrade

	$ sudo sed -i /deb/s/jessie/stretch/g /etc/apt/sources.list
	$ sudo sed -i /deb/s/jessie/stretch/g /etc/apt/sources.list.d/*.list

	$ sudo apt-get update
	<!DOCTYPE html>
	<html>
	<head>
	<meta name="apple-mobile-web-app-capable" content="yes" />
	<style>
	html,body {
	height:100%;
	}
	body {
	display: table;
	fenv_t fe;
	if (fegetenv(&fe) != 0) {
	// error
	}

	#if defined __arm__
	fe.__fpscr \|= __fpscr_trap_divbyzero;
	#elif defined __i386__
	fe.__control &= ~FE_DIVBYZERO;
	fe.__mxcsr &= ~_MM_MASK_DIV_ZERO;
	# Used in Mac OS X Teminal.app (bash)

	ping -c 3 255.255.255.255 \| grep from \| awk '{ print "ping -c 1 -q " $4; }' \| sed 's/://' \| sort -u \| bash > /dev/null ; arp -a \| grep ac:ca \| sed 's/^.(//' \| sed 's/).//'
	#include <sys/time.h>
	#define START_TIMER \
	struct timeval _tpStart; \
	struct timeval _tpEnd; \
	gettimeofday(&_tpStart, NULL)
	#define STOP_TIMER \
	gettimeofday(&_tpEnd, NULL); \
	std::cout << "Time: " << (_tpEnd.tv_sec-_tpStart.tv_sec)+(_tpEnd.tv_usec/1000000.0-_tpStart.tv_usec/1000000.0) << "s" << std::endl
	/*
	* vvector.h
	*
	* FUNCTION:
	* This file contains a number of utilities useful for handling
	* 3D vectors
	*
	* HISTORY:
	* Written by Linas Vepstas, August 1991
	* Added 2D code, March 1993
	/*
	* main.cpp
	*
	* Created on: 08.12.2012
	* Author: sk
	*/

	#include <iostream>
	#include <windows.h>
	#include <stdio.h>

	/* ----------------------------------------------------------------------
	This part declare all structs from the "the-structs.def" file
	*/

	#define STRUCT_BEGIN(_name) struct _name {
	#define STRUCT_END(_name) };
	#define STRUCT_FIELD(_type, _name) _type _name;
	CGImageRef image = uiimage.CGImage;
	NSUInteger width = CGImageGetWidth(image);
	NSUInteger height = CGImageGetHeight(image);

	// Setup 1x1 pixel context to draw into
	CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();
	unsigned char rawData[4];
	int bytesPerPixel = 4;
	int bytesPerRow = bytesPerPixel;
	NSUInteger bitsPerComponent = 8;