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Currently focusing on ROS 2 & SLAM.

Peter Wallhead peterwallhead

👨‍💻
Currently focusing on ROS 2 & SLAM.
56 followers · 132 following
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@zacharyvoase
zacharyvoase / curlwhat.py
Created November 13, 2012 18:22
Use curl to make requests from Python. License: http://unlicense.org/
"""
>>> response = curl('http://news.ycombinator.com/')
>>> response.status
200
>>> response.getheader('content-type')
'text/html; charset=utf-8'
>>> response.read(6)
'<html>'
>>> response.close()
"""
@ndarville
ndarville / business-models.md
Last active May 29, 2026 04:06
Business models based on the compiled list at http://news.ycombinator.com/item?id=4924647. I find the link very hard to browse, so I made a simple version in Markdown instead.

Business Models

Advertising

Models Examples
Display ads Yahoo!
Search ads Google
@zaus
zaus / FormRepo.js
Last active July 5, 2025 10:37
Preserve form values across page loads -- i.e. persistent forms. Uses `localStorage` to persist, `jQuery` for utilities.
var FormRepo = function (namespace) {
/// <summary>Persistent form values, saves to localStorage</summary>
/// <param name="namespace" type="String">the namespace to store values in localStorage</param>
// should also protect per page, since we could have the same forms in various places
this.N = namespace + '.' + window.location.pathname;
};
$.extend(FormRepo.prototype, {
namespace: function (key) {
return this.N + '.' + key;
@douglasmiranda
douglasmiranda / gist:5127251
Last active January 18, 2024 05:33
Find all occurences of a key in nested python dictionaries and lists - http://stackoverflow.com/questions/9807634/find-all-occurences-of-a-key-in-nested-python-dictionaries-and-lists
# This is a really old post, in the comments (and stackoverflow too) you'll find better solutions.
def find(key, dictionary):
for k, v in dictionary.iteritems():
if k == key:
yield v
elif isinstance(v, dict):
for result in find(key, v):
yield result
elif isinstance(v, list):
@tfeldmann
tfeldmann / i2c_scanner.ino
Created April 18, 2013 09:13
A I2C Scanner for Arduino
// --------------------------------------
// i2c_scanner
//
// Version 1
// This program (or code that looks like it)
// can be found in many places.
// For example on the Arduino.cc forum.
// The original author is not known.
// Version 2, Juni 2012, Using Arduino 1.0.1
// Adapted to be as simple as possible by Arduino.cc user Krodal
@mnbbrown
mnbbrown / README.md
Last active December 18, 2015 13:59
Go implementation of a JSON consuming RESTful API.

The following is a very barebones PoC implementation of a somewhat RESTful (more CRUD) API that consumes JSON. It's a WIP.

The GenUUID function is based upon nu7hatch's implementation: https://github.com/nu7hatch/gouuid

Things to improve:

  • Error and panic handling/recovery including the JSON marshalling of errors.
  • Persistance & Concurrency Locks
  • Logging
@nodesocket
nodesocket / bootstrap.flatten.css
Last active June 3, 2026 23:25
Below are simple styles to "flatten" bootstrap. I didn't go through every control and widget that bootstrap offers, only what was required for https://commando.io, so your milage may vary.
/* Flatten das boostrap */
.well, .navbar-inner, .popover, .btn, .tooltip, input, select, textarea, pre, .progress, .modal, .add-on, .alert, .table-bordered, .nav>.active>a, .dropdown-menu, .tooltip-inner, .badge, .label, .img-polaroid {
-moz-box-shadow: none !important;
-webkit-box-shadow: none !important;
box-shadow: none !important;
-webkit-border-radius: 0px !important;
-moz-border-radius: 0px !important;
border-radius: 0px !important;
border-collapse: collapse !important;
background-image: none !important;
@arisetyo
arisetyo / index.html
Created July 12, 2013 16:37
Dynamic Real-time Chart Using Chart.js, Socket.io, and Knockout.js
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="author" content="Galenic">
<script src="js/jquery-1.9.1.js"></script>
<script src="js/knockout-2.1.0.js"></script>
<script src="js/Chart.js"></script>
<link rel="stylesheet" href="pure-min.css">
@chengyin
chengyin / linkedout.js
Last active July 11, 2021 15:23
Unsubscribe all LinkedIn email in "one click". For an easier to use version, you can check out the bookmarklet: http://chengyin.github.io/linkedin-unsubscribed/
// 1. Go to page https://www.linkedin.com/settings/email-frequency
// 2. You may need to login
// 3. Open JS console
// ([How to?](http://webmasters.stackexchange.com/questions/8525/how-to-open-the-javascript-console-in-different-browsers))
// 4. Copy the following code in and execute
// 5. No more emails
//
// Bookmarklet version:
// http://chengyin.github.io/linkedin-unsubscribed/
@grantslatton
grantslatton / hngen.py
Last active September 27, 2021 11:07
A program that uses Markov chains to generate probabilistic Hacker News titles.
import urllib2
import re
import sys
from collections import defaultdict
from random import random
"""
PLEASE DO NOT RUN THIS QUOTED CODE FOR THE SAKE OF daemonology's SERVER, IT IS
NOT MY SERVER AND I FEEL BAD FOR ABUSING IT. JUST GET THE RESULTS OF THE
CRAWL HERE: http://pastebin.com/raw.php?i=nqpsnTtW AND SAVE THEM TO "archive.txt"