Project Solutions

Bike Tail Light With Standlight （1）

Published:2011/8/2 22:15:00 Author:Phyllis

By ralf Nolde Be seen even at standstill! As autumn approaches cyclists become more aware of safety and in particular their visibility to other road users. Dynamo lighting offers the cheapest running costs but has the disadvantage that when the wheels stop rolling the lights go out. This neat circuit stores energy while you are moving to keep the light shining even when you stop. (View)

View full text | Comments | Reading(3153)

Microcontroller

Published:2011/8/2 21:59:00 Author:Phyllis

A dazzling choice of devices…… Lots of semiconductor manufacturers also supply microcontrollers. The plethora of available versions and their increasing flexibility do not make it easy to find the right micro for your specific application. BUYERS GUIDE Comparing and weighting m...   (View)

View full text | Comments | Reading(384)

Rolling Dice （3）

Published:2011/8/2 21:45:00 Author:Phyllis

By Paul Goossens Construction The construction of the boards differs in a few ways from the usual method. In several places we have used standard components, which have to be surface mounted. The reason for this is that we’d rather not have any leads sticking out through the boards. This would result in a number of sharp points on the outside of the dice, which would damage your fur...   (View)

View full text | Comments | Reading(494)

Rolling Dice （2）

Published:2011/8/2 21:37:00 Author:Phyllis

By Paul Goossens Main PCB After these considerations we arrived at the circuits for the dice. At the hart of the circuit is IC1, a microcontroller by Atmel (Figure 1). We have used this type previously and have given a detailed description in past issues of Elektor Electronics. It therefore suffices just to mention that the software for this project can be freely do...   (View)

View full text | Comments | Reading(878)

Rolling Dice （1）

Published:2011/8/2 21:29:00 Author:Phyllis

By Paul Goossens Three-dimensional electronics Projects for electronic dice have previously appeared in Elektor Electronics. Different designs and shapes have found their way into the magazine, but one thing they had in common: they were all two-dimensional dice. But now that is about to change! Electronic dice are usually constructed on flat boards. To give the impression o...   (View)

View full text | Comments | Reading(305)

Virtual Soldering （3）

Published:2011/8/2 2:59:00 Author:Amy

By Dr. Thomas Scherer What can LabVIEW do? LabVIEW has practically everything one would expect from a normal program­ming language: all the usual variable types from bits through double-precision floating-point to arrays and compound types. Even complex numbers are avail­able. It can in some cases calculate directly with physical units. The usual constants from e to the gas ...   (View)

View full text | Comments | Reading(412)

Virtual Soldering （2）

Published:2011/8/2 2:39:00 Author:Amy

Dr. Thomas Scherer What is LabVIEW? The first version of LabVIEW (1.0) appeared in 1986, ini­tially only for the Apple Macintosh computer. At that point the Mac itself was already two years old and repre­sented a revolution in user-friendliness in the history of personal computing. Text-based entry was replaced by graphical metaphors, including a desktop with windows, waste ...   (View)

View full text | Comments | Reading(356)

Virtual Soldering （1）

Published:2011/8/2 2:23:00 Author:Amy

Dr. Thomas Scherer Even experienced electronics engineers occasionally find themselves confronted by the need to swap soldering iron for keyboard: not all projects can be realized purely in hardware. LabVIEW makes an excellent choice of programming language for engineers! When a PC forms an integral part of a technical solution and no suitable software is available off the shelf, so...   (View)

View full text | Comments | Reading(416)

Gameboy Oscilloscope （6）

Published:2011/8/2 1:47:00 Author:Amy

Conclusion We don’t want to claim that choosing an oscilloscope is an easy task, even with this survey to help you. As already mentioned, it’s a good idea (or even essential) to base your choice on your specific measurement tasks, taking future wishes into account as v/ell. This survey and the reported results should then help you to more quickly sort through the available options. ...   (View)

View full text | Comments | Reading(740)

The Grantsdale chipset PCB Design Kit

Published:2011/8/2 1:46:00 Author:Phyllis

The Grantsdale referred to chipset made by Mentor Graphics Corporation for providing Intel Corporation with drop-in core layout (DCL) kits with the Mentor Graphics® Expedition™ PCB design flow. This DCL kit was a follow-on to the Intel 915G/P and 925XE Express Chipset kits integrated the CPU, chipset and other motherboard components for use with the Expedition PCB design flow made personal computer mother...   (View)

View full text | Comments | Reading(521)

Gameboy Oscilloscope （5）

Published:2011/8/2 1:43:00 Author:Amy

Recommendations To start with, it is important to determine how much band­width and how many channels you need for the measure­ments you will be making - both now and in the future. After all, an oscilloscope’s bandwidth and number of channels cannot be upgraded later on. The next thing to consider is that an oscilloscope cannot be ’interfaced’ to the object to be measured without t...   (View)

View full text | Comments | Reading(289)

Gameboy Oscilloscope （4）

Published:2011/8/2 1:19:00 Author:Amy

Digital storage oscilloscopes The Wittig 22-300, the simplest instrument in the ’pure digital’ category, is limited with regard to more than just its bandwidth and sampling rate. Its operation, measure­ment capabilities and display fall short of qualifying it for serious use. This is offset by its modest price. However, you would be wise to consider purchasing a good ana­logue inst...   (View)

View full text | Comments | Reading(703)

THAT＇S CLASS: Audio Amplifiers from A to T （3）

Published:2011/8/2 1:13:00 Author:Li xiao na

By Harry Baggen Classes 5 and T Although the working principle of the Class D amplifier is already several decades old. it never managed to become truly established in hi-fi applications. This was primarily due to excessive distortion and a lack of good semiconductor devices (fast power FETs). In the meantime, several manufacturers have devised variations on thi...   (View)

View full text | Comments | Reading(319)

THAT＇S CLASS: Audio Amplifiers from A to T （2）

Published:2011/8/2 0:56:00 Author:Li xiao na

By Harry Baggen Class A Here we begin with the simplest configuration, the Class A final amplifier, which is also one of the best configurations for high-quality audio reproduction. In its basic form, this configuration can be implemented using a standard emitter follower (Figure 1). The quiescent current through the transistor is equal to the peak ...   (View)

View full text | Comments | Reading(383)

THAT＇S CLASS: Audio Amplifiers from A to T （1）

Published:2011/8/2 0:40:00 Author:Li xiao na

By Harry Baggen The final amplifier is the power source of every audio installation. Its job is to convert a small alternating voltage into a powerful signal suitable for driving loudspeakers, with as little distortion as possible. During the years since the invention of electronic audio systems, designers have come up with various approaches to this problem. It all started with Class A... <...   (View)

View full text | Comments | Reading(273)

Multi Programmer: One Size Fits All （5）

Published:2011/8/1 22:54:00 Author:Li xiao na

By Andreas Oyrer Programming routines The data received is decoded by the routine Decode Programmer Data Q in the file Prog.c. The first byte of the 64-byte report contains the code for the selected microcontroller, while the second gives the desired action. These values are used to call one of a number of different programming algorithms for different devices, as given in the micro...   (View)

View full text | Comments | Reading(345)

Multi Programmer: One Size Fits All （4）

Published:2011/8/1 22:35:00 Author:Li xiao na

By Andreas Oyrer Protocol A protocol is of course required to ensure that data communications between the PC and the programmer are kept in step. The first byte from the PC to the programmer contains information on the selected microcontroller or memory: the value 1 specifies the 9Cx051 series, the value 2 the 89C5x and 89Sx series. The second byte gives the selected action: 1 to re...   (View)

View full text | Comments | Reading(268)

Multi Programmer: One Size Fits All（3）

Published:2011/8/1 22:17:00 Author:Li xiao na

By Andreas Oyrer PC software The software running on the PC is written in Delphi 7. The menu language can be set (under Setup, as shown in Figure 2) to English, French or German. This setting, along with all other settings, is stored in the registry and automatically recalled when the program is next run. <...   (View)

View full text | Comments | Reading(779)

Swiss Army knife （6）

Published:2011/8/1 21:38:00 Author:Phyllis

By Jim Spence Assembly code At some point in time more control or faster speed may be required than a high level language can give. There is no alternative but to resort to use assembler, which is the direct equivalent to programming the processor itself. To do this effectively you will need an ...   (View)

View full text | Comments | Reading(358)

Swiss Army knife （5）

Published:2011/8/1 21:30:00 Author:Phyllis

By Jim Spence ByVac-Terminal ByVac-Terminal does have some built-in features to get maximum performance and ease of use from the Swiss Army Knife. Version 1.0 is free from the Free Downloads section of our website: www.elektor-electronics.co.uk. As an example, to download a program from your text editor you can simply use ’Send File’. If however you are using the EEPROM (View)

View full text | Comments | Reading(344)

Pages:15/22 1234567891011121314151617181920Under 20