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USB Made Simple

USB Made Simple

AVR projects and AVR Butterfly gcc port by Martin THOMAS G.d.W. SS2010 FHFFM You may like to visit my ARM-Projects page too (projects and information for NXP LPC2000, Atmel AT91SAM7, STmicro STR7, STM32, LMI LM3S and other controllers with an ARM-core). Available Projects and Information (Content) "Last updated" may be just additional information not always a new version of a software-package. AVR Butterfly Application code port to avr-gcc Introduction The AVR Butterfly (ATAVRBFLY) made by ATMEL comes with a preloaded application. For german readers: Der Quellcode der auf dem AVR-Butterfly installierten Applikation wird von ATMEL für den IAR C-Compiler zum Download bereitgestellt. Even if you do not own an AVR Butterfly you may find usefull information in the BF application code for general ATMEL AVR development tasks. From the gcc-port of the application code some methodes how to convert IAR-code to avr-gcc/avr-libc-code can be learned. Butterfly gcc-port history Software 2.Oct.2003 - 4. Butterfly resources (local and remote)

jQuery 1.4 iPhone reference app - O! Mr Speaker! Thursday, January 14, 2010 [English got you down? Try this post in Belorussian!] Welcome to the year twenty hundred and ten! To help you get your head around the reams of new information, I've created a neat-o reference app for your iPhone - so now you've got no excuse not to know what jQuery.noop, .nextUntil(), or .unwrap() does! To install it, go here on your iPhone then click "+" and "Add to Home Screen" for fullscreen app-y goodness.Please note! The application uses the jQuery touch plugin to appear all native-y, and the offline abilities of HTML5 to store the data for when you feel like reading jQuery docs on the bus. The material is taken from the new docs - which are being changed a lot at the moment, so I'll update this thing again when it all settles down a bit (I won't be doing constant updates, because I don't think you can invalidate individual files in the cache manifest, so you have to get all 350 files again for any changes).

Hobby projects - Simple electronic circuits Computer microphones Learn how to interface electret and dynamic microphones to the standard computer sound card. Metal detectors Theory of operation and schematics of the most common metal detectors used today: Very Low Frequency (VLF), Pulse Induction (PI) and Beat-Frequency Oscillator (BFO). Wireless microphone The wireless microphone transmitter can be built in an afternoon with simple, affordable and widely available parts.

Python 2.6 Quick Reference Style chooser: Modern, Modern B&W, Modern Colored, Classic, High contrast or Printing [Hint: Use styles Modern B&W or Printing to print. If you get problems, try printing the PDF versions instead] Contents Front matter Version 2.6 (What's new?) Creative Commons License. Last updated on July 31, 2010. Feb 10, 2009 upgraded by Richard Gruet and Josh Stone for Python 2.6 Dec 14, 2006 upgraded by Richard Gruet for Python 2.5 Feb 17, 2005, upgraded by Richard Gruet for Python 2.4 Oct 3, 2003 upgraded by Richard Gruet for Python 2.3 May 11, 2003, rev 4 upgraded by Richard Gruet for Python 2.2 (restyled by Andrei) Aug 7, 2001 upgraded by Simon Brunning for Python 2.1 May 16, 2001 upgraded by Richard Gruet and Simon Brunning for Python 2.0 Jun 18, 2000 upgraded by Richard Gruet for Python 1.5.2 Oct 20, 1995 created by Chris Hoffmann for Python 1.3 Color coding: Features added in 2.6 since 2.5 Features added in 2.5 since 2.4 Features added in 2.4 since 2.3 A link Invocation Options python[w] [-BdEhimOQsStuUvVWxX3?]

Mike's Electric Stuff CouchDB: The Definitive Guide Build the BASIC SPY TRANSMITTER - Page 1 of 16 Build the 2 transistor Spy Transmitter Radio frequency projects can seem more difficult than most electronics projects because most of the time you cannot build them on a solderless breadboard and there may be parts used that are not easy to source such as coils and adjustable capacitors. This project is focused towards those who have not yet attempted to build any kind of RF project, and it is laid out in such a way as to make it easy to explore the basic principles of RF circuitry and ensure a successful final product. This simple 2 transistor audio transmitter will send the sounds picked up in a room to any FM radio tuned to the same frequency as the transmitter, somewhere between 80 and 100 Megahertz. The expected range will be at least 100 feet and could be substantially longer depending on the parts used and the quality of your final product. Figure 1 - You can salvage most of the parts needed from an old radio You are Viewing...

Table of Contents Hey there, it appears your Javascript is disabled. That's fine, the site works without it. However, you might prefer reading it with syntax highlighting, which requires Javascript! Introduction Starting Out Starting Out (for real) Modules Syntax in Functions Types (or lack thereof) Recursion Higher Order Functions Errors and Exceptions Functionally Solving Problems A Short Visit to Common Data Structures The Hitchhiker's Guide to Concurrency More On Multiprocessing Errors and Processes Designing a Concurrent Application What is OTP? Clients and Servers Rage Against The Finite-State Machines Event Handlers Who Supervises The Supervisors? Building an Application With OTP Building OTP Applications The Count of Applications Release is the Word Leveling Up in The Process Quest Buckets Of Sockets EUnited Nations Council Bears, ETS, Beets Distribunomicon Distributed OTP Applications Common Test for Uncommon Tests Mnesia And The Art of Remembering Type Specifications and Erlang Conclusion Postscript: Maps

Operational amplifier applications This article illustrates some typical applications of operational amplifiers. A simplified schematic notation is used, and the reader is reminded that many details such as device selection and power supply connections are not shown. Operational amplifiers are optimised for use with negative feedback, and this article discusses only negative-feedback applications. When positive feedback is required, a comparator is usually more appropriate. See Comparator applications for further information. Practical considerations[edit] Op amp parameter requirements[edit] In order for a particular device to be used in an application, it must satisfy certain requirements. have large open-loop signal gain (voltage gain of 200,000 is obtained in early integrated circuit exemplars), andhave input impedance large with respect to values present in the feedback network. Those interested in construction of any of these circuits for practical use should consult a more detailed reference. Supply noise[edit] When