How to use Arduino Uno upgrade USBasp firmware - NexusCyber Electronics
Upgrade USBasp firmware by microcontroller 1. Required ItemsItems required for the firmware upgradea. USBasp Programmerb. Computer with USB port and AVRdude software installedc. Latest Firmware. avrdude –C .. i.
Best Practices for Designing a Pragmatic RESTful API | Vinay Sahni
Your data model has started to stabilize and you're in a position to create a public API for your web app. You realize it's hard to make significant changes to your API once it's released and want to get as much right as possible up front. Now, the internet has no shortage on opinions on API design. But, since there's no one widely adopted standard that works in all cases, you're left with a bunch of choices: What formats should you accept? How should you authenticate? Should your API be versioned? In designing an API for SupportFu (a lightweight Zendesk alternative ), I've tried to come up with pragmatic answers to these questions. ... or just skip to the bottom and signup for updates Key requirements for the API Many of the API design opinions found on the web are academic discussions revolving around subjective interpretations of fuzzy standards as opposed to what makes sense in the real world. Use RESTful URLs and actions But what can I make a resource? SSL everywhere - all the time
Updating firmware on USBASP bought from eBay « Roger Clark
I bought a cheap USBASP clone Atmel programmer from eBay a few weeks ago, to use with the Arduino IDE. (see images below) The board worked ok, but kept giving errors avrdude: warning: cannot set sck period. please check for usbasp firmware update and I was unable to program an ATTiny85 on a breadboard when running at 3.3v (it worked fine at 5V), so I decided to bite the bullet and attempt to update the firmware on the USBASP using one of my Arduino boards as the programmer. There appears to be a lot of misleading and confusing information on the web about how to do this, so I thought I’d document what worked for me. NOTE. Check that avrdude can connect to the USBASP In the windows command window, typeavrdude -C .. This entry was posted on 18/05/2013, 17:56 and is filed under Arduino.
19 Beautiful and Colorful Websites for your Inspiration
In the Northern Hemisphere, summer is just around the corner, and to celebrate that, there’s nothing better than checking out some beautiful and colorful websites. Colors are a great way to get attention, and to add personality and interest to a design. Choosing the right color palette may change the whole outcome of a design, so today we will show you how some very talented web designers are using color to create beautiful websites. Butterfly Bark PR Dumbo Townhouses Simple as Milk Summer in Tennessee Ready to Inspire TriplAgent Julia & Artem Dear Mum Polecat Kick my Habits herrlich media Dubbel Frisss Design Embraced rdio Kluge Interactive Flourish Brand Stylists colourcode Wall Creations About the Author Gisele Muller loves communication, technology, web, design, movies, gastronomy and creativity. Related Posts 276 shares 11 Inspiring Typography Focused Web Designs We all know that typography is a very important element of a good design. Read More 510 shares Examples of Well Designed Contact Pages
Equipping Arduino with a powerful Web server thanks to the Wi-Fi Shield
We’ll show you today how to use the WiFi shield and its libraries to turn Arduino into a Web Server; in addition, we are going to use the I/O Expander shield to provide more input and outputs to the platform. We will describe how to handle the specific library to use the WiFi shield as a WEB client for a public website that will collect data coming from sensors. The Arduino-based WEB server can be accessed using a normal browser, displaying sensors values or activating outputs. In the examples provided with the library, there is already a code sketch that shows how to create a WEB server. To overtake these limitations we have implemented the WiFi library in a more efficient way, by using Javascript functions embedded in the HTML code, and controlling the browser – server communication through AJAX mechanisms (using Javascript XMLHttpRequest object). This basically means that part of the graphic rendering is performed by the browser. I/O Expander WEB Server From the store I/O expander shield
40 Cool jQuery Animation Tutorials
Since its arrival, jQuery has caught the web by storm and now it is one of the preferred solutions in creating fancy animations on web pages. jQuery provides great cross browser support, it is lightweight and easy to use. Right now, you can see jQuery effects applied in a number of ways that effectively demonstrate its power to define and control small-scale web animations. Until newer technologies like CSS3 fully mature with adequate support from major browsers and all, jQuery will continue the lead. We will still be seeing a lot of its application in navigation interfaces, sliders and other image display mechanisms, in enhancing web typography and more going forward. Therefore, to help you work your way around jQuery, I am sharing with you some of the best jQuery animation tutorials and plugins I have been able to find. As you will see, these tutorials will help you acquire skills in making various animation effects. Advertisement jQuery Animation Tutorials
Is this the cheapest way of adding WiFi to Arduino?
2xod rose a question about efforts put to Arduino have a WiFi connectivity. A good example is I Arduion Yun. Is it fair that WiFi part of it have order of magnitude more processing power than Arduino micro itself. Of course powerful Wifi module gives flexibility and easy user experience. Most of these modules are simple devices that communicate via serial interface. Read
Statistical Formulas For Programmers
By Evan Miller DRAFT: May 19, 2013 Being able to apply statistics is like having a secret superpower. Where most people see averages, you see confidence intervals. When someone says “7 is greater than 5,” you declare that they're really the same. In a cacophony of noise, you hear a cry for help. Unfortunately, not enough programmers have this superpower. As my modest contribution to developer-kind, I've collected together the statistical formulas that I find to be most useful; this page presents them all in one place, a sort of statistical cheat-sheet for the practicing programmer. Most of these formulas can be found in Wikipedia, but others are buried in journal articles or in professors' web pages. Send suggestions and corrections to emmiller@gmail.com Table of Contents 1. One of the first programming lessons in any language is to compute an average. 1.1 Corrected Standard Deviation The standard deviation is a single number that reflects how spread out the data actually is. Where: SE=s√N 2. 3.
Fuck Off As A Service (FOAAS)
