AVR projects and AVR Butterfly gcc port by Martin THOMAS G.d.W. SS2010 FHFFM 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
USB in a NutShell - Chapter 1 - Introduction Starting out new with USB can be quite daunting. With the USB 2.0 specification at 650 pages one could easily be put off just by the sheer size of the standard. This is only the beginning of a long list of associated standards for USB. There are USB Class Standards such as the HID Class Specification which details the common operation of devices (keyboards, mice etc) falling under the HID (Human Interface Devices) Class - only another 97 pages. If you are designing a USB Host, then you have three Host Controller Interface Standards to choose from. None of these are detailed in the USB 2.0 Spec.
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).
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! USB in a NutShell - Chapter 4 - Endpoint Types The Universal Serial Bus specification defines four transfer/endpoint types, Control transfers are typically used for command and status operations. They are essential to set up a USB device with all enumeration functions being performed using control transfers. 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