Digital Project -- Digital Camera Interface Iñaki Navarro Oiza Report ::: Code ::: Slides Introduction The aim of this project is the development and construction of an interface between a CMOS camera and a computer. The Camera The Camera called c3088 uses a CMOS image sensor OV6620 from Omnivision . The System The communication from the microcontroller to the camera to change the properties of the camera is made using the I2C. Some image process is made to detect the center of a white object. Some pictures taken with the camera Normal Images Panoramic Image More information More information about electronics and robotics can be found in and in
Engineering ToolBox Technical Library Electrical Engineering News, Resources, and Community | EEWeb scitoys.com - Radio Building a simple crystal radio. A crystal radio is the distilled essence of a radio. It has very few parts, it needs no batteries or other power source, and it can be built in a short time out of things you can find around the house. The reason a crystal radio does not need any batteries is the amazing capabilities of the human ear. We are going to launch right into this chapter by building a working radio using parts that we buy at stores like Radio Shack or through mail order. Later we will learn more about radios by looking at even simpler versions that might not work as well as our first radio, but can show the important radio concepts more easily, because they have fewer parts. Then we will improve our radio, making it louder, making it receive more stations, and making it look real nice. Lastly, we will build each part of the radio from scratch, using things we find around the house. Our first radio For our first radio, we will need these parts: A sturdy plastic bottle. Del.icio.us
blog: HOW TO - Getting Started with Arduino I’ve compiled a brief tutorial on getting started with Arduino for the absolute beginner. I’ll cover where to learn, what to buy, and where to go for help. Why should you crafters be interested in Arduino? Where to learn First and foremost is the Arduino website. What to buy – the absolute basics for learning the platform The board: I recommend the USB Arduino board, pre-assembled, for first-timers. Photo: Sparkfun Some LEDs (light-emmiting diodes): most of the basic tutorials involve lights. Photo: Wikepedia Wire: You’ll need some 22 gauge solid (not stranded) hook-up wire to connect your board to your components. Needlnose pliers and wire strippers are both available at RadioShack, but check out Techni-Tool for some more options. – Link. That’s all you’ll need to get started! What to buy – next steps and general resources General electronics resources for parts can sometimes be tough to navigate with their poor web interfaces, but you’ll get used to the information overload. • Mouser Related
Chapter 10: Computers and Electronics -- Build a simple 1 watt audio amplifier A simple 1 watt audio amplifier The solderless breadboard makes it easy to experiment with additions to the radio circuit. In this section, we will build a simple amplifier, so that a whole room can hear the radio through a speaker. Our amplifier will not be ear shattering, since we have made it as simple as we can to build, but the output is pretty impressive for a single transistor. Click on photo for a larger picture With the amplifier, our radio looks like the photo above. Below is a closeup of the amplifier section: We carry all the parts for the amplifier (except the battery) in our catalog. The amplifier needs these parts: An MPSW45A Darlington transistor This is the main working part of the amplifier. Using the labeled grid as before, the parts are connected this way: A more permanent version As before, we can copy the circuit onto a printed circuit board and solder all of the parts firmly in place. How does it do that? The heart of the amplifier is the transistor. Del.icio.us Google
FC's Electronic Circuits FC's Circuit Archive contains many electronic circuits that I have designed and documented. I have attempted to include a number of unusual circuits, with an emphasis on useful applications over simple toy circuits. The majority of these projects can be built with readily available discrete components. Only a few of the circuits here rely on microprocessors. Bucking that trend, the Arduino platform is an easy to learn microprocessor platform with a free software development environment that is so popular it should be around for many years. Most of the circuits on this site have been drawn with the open-source and cross-platform XCircuit circuit drawing program. I'm a big fan of the Linux operating system. Linux makes a great platform for dedicated systems: take an older computer, install Linux and the appropriate free software utilities and turn it into a specialized device.
Welcome - Fritzing scitoys.com - Computers and Electronics Building a computer controlled radio transmitter How would you like to send text messages to your friends without wires, and without an Internet connection, and without paying monthly fees? In this project we will build a very simple radio transmitter that you attach to a serial port on your computer. The computer then runs a free program that converts words you type into radio signals that are decoded by another computer, using a cheap radio receiver, and a sound card. With a little study, you don't even need the second computer, since the radio signals are in Morse code, which anyone can learn to decode in their head with a little practice. Click on photo for a larger picture The computer controlled transmitter needs these parts: (We carry most of the necessary parts in our catalog.) A one megahertz oscillator You can use other frequencies if you have a radio that can receive them. For our first transmitter, we will connect the parts with alligator clips. Controlling the transmitter
Evil Mad Scientist Laboratories - Resources for getting started This is a short list of resources for getting started with AVR microcontrollers. It’s intended as a supplement to intro AVR classes that we have given. We intend to periodically update this list; leave your suggestions for additions in the comments, please. (Last update: October 2012) First of all, these GUI installers for the GNU AVR toolchain are really excellent: Two flavors for Mac and Windows: CrossPack (Mac – recommended solution) MHV AVR Tools (Windows – recommended solution. On Linux and Unix-like operating systems (Macs included) you can also follow the directions given by bdmicro (330 kB PDF) for installing the components one at a time. Almost certainly the best place to get started is at Ladyada’s AVR tutorial. A couple of other sets of instructions and reference guides: Some notes on hardware: A few interesting examples of AVR source code: TV-B-Gone, the open-source version.Gobs of other good examples at Ladyada.netProcyon AVRlib by Pascal Stang.
Working With Three-Phase Power: Introduction to Electricity Electronics Project Design Schematics and circuit diagrams