eligrey

/*
 * object.watch polyfill
 *
 * 2012-04-03
 *
 * By Eli Grey, http://eligrey.com
 * Public Domain.
 * NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
 */

bellbind

// node.js 0.5 Diffie-Hellman example                                           
var assert = require("assert");
var crypto = require("crypto");

// the prime is shared by everyone                                              
var server = crypto.createDiffieHellman(512);
var prime = server.getPrime();


// sharing secret key on a pair                                                 

bechu

/*
g++ main.cpp -lboost_system -lboost_thread -lpthread -o main
*/

#include <boost/asio.hpp>
#include <boost/array.hpp>
#include <iostream>


void send_something(std::string host, int port, std::string message)

companje

// Interactive Mandelbrot Set
// Inspired by Daniel Shiffman's Processing example.
// by Rick Companje - www.companje.nl - 6 december 2009

double xmin = -2.5;
double ymin = -2;
double wh = 4;
double downX, downY, startX, startY, startWH;
int maxiterations = 200;
boolean shift=false;

adammw

Node.js for Raspberry Pi

Pre-built binaries

Recent releases have been pre-built using cross-compilers and this script and are downloadable below.

If you have found these packages useful, give me a shout out on twitter: @adammw

ndarville

Grab ffmpeg from https://www.ffmpeg.org/download.html

It's a command line tool which means you will have to type things with your keyboard instead of clicking on buttons.

The most trivial operation would be converting gifs:

ffmpeg -i your_gif.gif -c:v libvpx -crf 12 -b:v 500K output.webm

• -crf values can go from 4 to 63. Lower values mean better quality.
• -b:v is the maximum allowed bitrate. Higher means better quality.

hmartiro

ZeroMQ vs Redis

This document is research for the selection of a communication platform for robot-net.

Goal

The purpose of this component is to enable rapid, reliable, and elegant communication between the various nodes of the network, including controllers, sensors, and actuators (robot drivers). It will act as the core of robot-net to create a standardized infrastructure for robot control.

Requirements:

Hidendra

local result = redis.call('zrange', KEYS[1], 0, -1, 'withscores')

local count = 0
local sum = 0
local min = 0
local max = 0

for i=1, #result, 2 do
   local score = result[i + 1]

nielin

function hex_sha1(s) {
  return binb2hex(core_sha1(str2binb(s), s.length * chrsz));
}

function b64_sha1(s) {
  return binb2b64(core_sha1(str2binb(s), s.length * chrsz));
}

function str_sha1(s) {
  return binb2str(core_sha1(str2binb(s), s.length * chrsz));

fasterthanlime

#include <microhttpd.h>

#define PORT 8888

int answer_to_connection (void *cls, struct MHD_Connection *connection, 
                          const char *url, 
                          const char *method, const char *version, 
                          const char *upload_data, 
                          size_t *upload_data_size, void **con_cls)
{