Home Blog  

7 Oct 2013


Bertho shared his NoLoop galvanic isolator:

I had a problem some time ago with a nasty ground-loop and that cost me the USB port on my old laptop. It took me a while to realize what had happened and it was a generic problem we all run into more often than we think. Time to solve this particular problem once and for all and make generic isolation for Serial and SPI ports.


NoLoop galvanic isolator - [Link]

5 Oct 2013


If you need a reliable and fast storage for your data, then you shouldn´t overlook the Apacer CF6 series. 

Among memory devices, CF (CompactFlash) cards are very popular for embedded devices in such fields as medical, military, gaming, automotive and POS applications to date due to their cost effectiveness, reliability and stability.  Apacer’s latest generation of CF Memory cards – Industrial CF6 cards, significantly boosts the transmission efficiency up to 115/80 MB/ second, realizing the speed of SATA interface when compared with its predecessors. The new series also considerably expands its capacity up to 128GB, making it the best choice for industrial computer and automatic storage.

Apacer’s CF6 serie memory card is available in capacities of 16GB to 64GB in the reliable and highly competitive SLC chip and in capacities from 8GB to 128GB with low-cost MLC chip. Both the two series of products can run stably under industrial-grade wide-temp (-40°C – 85°C) environments, enabling the system to access data reliably even at scorching or extremely low temperatures, which considerably guarantees the service life of products. In addition, in order to enhance the accuracy of data, Apacer’s Industrial CF6 cards also support the 72-bit ECC function, wear-leveling function and S.M.A.R.T. (Self-Monitoring, Analysis, and Reporting Technology), thereby substantially enhancing product reliability.

In respect of ensuring data security, Apacer’s Industrial CF6-Premium Series come with an optional Write Protect function (Premium series). These CF memory cards are designed with a Lock Switch in a lower position so that customers can lock the CF memory cards prior to delivery of the system. Users can only read rather than write the data, thus helping prevent accidental deletion of data caused by careless operation and protect confidential data against vicious tampering.  Apacer offers other series of Industrial Compact Flash Cards CF3 and CF5 series) as well tailored for a variety of customer applications and demands.
In case of interest in any Apacer Apacer products, please contact us at info@soselectronic.com.

Sixth generation of Apacer CF cards reaches almost speed of SATA – [Link]

5 Oct 2013


The highest communication speed UMTS/HSPA+ and an easy communication via USB make the new module ideal for M2M applications. 

Fast data transmission is becoming an inseparable part of devices for automotive industry, measuring, tracking, security systems, wireless terminals (POS), mobile computers etc.
When we´re choosing a module for above mentioned segments, it´s surely worth if the module also offers somewhat so to say “extra”. In case of the UC20 module it´s true, because there´s probably no parameter, which would the UC20 not meet and when you look closer at the datasheet, you´ll also find another functions like for example 2x 15 bit AD converter and other. A big advantage of the UC20 is, that it supports a fast transmission even outside of the 3G networks thanks to a dual mode (+ Multi-band) for WCDMA but even GSM with a support of GPRS/EDGE Multi-slot Class 12. A considerable benefit are also the Windows USB drivers (Linux and Android drivers are in development).

UC20 can air itself even with a high sensitivity and a high integrity of transferred data even in adverse conditions.  For a development support, there are also available reference examples – UC20-reference design as well as UC20-Compatibility design regarding HW compatibility of UC20 with the M10 module.
All package (12x pdf) of software user guides can be downloaded on this link (11MB). Detailed information will provide you the documents UC20-Specification, UC20-Presentation and UC20 Hardware design.

For many applications can be beneficial the UC20 module on a PCB in a form of the Mini PCIe card. Also available is the UC20_EVB development board.
In case of interest in any modules from company Quectel, please contact us at info@soselectronic.com.

Quectel 3G modules of UC20 series will ensure a fast transmission even on 900 MHz – [Link]

5 Oct 2013

You meet them every day without knowing that those are Friwo. However world-class producers know why they use them… 

Friwo power supplies  guarantee top-level specification and reliability, what can help you to gain and keep customers and a good reputation. To have a trust of customers is usually the most important factor influencing whether you will sell your product or not. And trust of customers is usually built on a reliability of a device…

Nowadays, when a device with almost the same functionality can be bought from several producers, the success or fail on the market is in the hands of seeming trifles. Naturally, there´s often a pressure on a very low price, but hand in hand with this requirement, everyone also wants a reliability.
Designers of electronic devices know, that a device with the same functionality can be designed in two basic ways:
1) in a way that it worked on the edge of its possibilities (weakly dimensioned components, slower semiconductors with higher losses, …). Such a device operates at “usual circumstances” properly, only maybe generating a little more heat (lower efficiency). The problem is usually a lower lifetime and a much higher susceptibility to overvoltages in mains line, disturbances, higher or very low temperatures etc.
2) or in a way that it worked with a reserve even in not always ideal conditions (temperature, voltage spikes, ….) even for a price of slightly higher production costs.

It´s obvious, that a device designed by a “pattern no. 2” provides far higher assumption of a reliable operation without claims, service events or a loss of a good reputation. Friwo as the biggest and the only European producer of power supplies in a given range wagered on quality and no wonder, that it´s the first choice of many renowned producers like Bosch, Metabo, Makita, Braun, Siemens medical, Porsche, Geberit, Sagem,….    If you didn´t meet a mark Friwo yet, it may be because Friwo is first of all the OEM producer and almost everyone of us daily uses some product with a Friwo power supply, without knowing it.

On stock we keep a selected range of adapters, but much more important is the fact, that we´re able to provide you any power supply from Friwo and upon order it´s also possible to produce a power supply exactly according to your demands. Friwo disposes with many production capacities, like laser trimming enabling a flexible adjustment of specification. An image about the Friwo power supplies will give you the document Friwo company profile as well as our article „Your devices will fall in love with premium power supplies Friwo”.
In case of interest, please contact us at info@soselectronic.com.

Do you divine where everywhere Friwo adapters and power supplies are used? – [Link]

4 Oct 2013


The MAX31740 is a sophisticated, yet easy-to-use fan-speed controller. It monitors the temperature of an external NTC thermistor and generates a PWM signal that can be used to control the speed of a 2-, 3-, or 4-wire fan. The fan control characteristics are set using external resistors, thereby eliminating the need for an external microcontroller. Controllable characteristics include the starting temperature for fan control, PWM frequency, fan speed at low temperatures, and slope of the temperature-duty-cycle transfer function.

MAX31740 – Ultra-Simple Fan-Speed Controller - [Link]

4 Oct 2013


Intel® Galileo – Intel® Galileo is the first in a line of Arduino-compatible development boards based on Intel architecture.

Galileo is a microcontroller board based on the Intel® Quark SoC X1000 Application Processor, a 32-bit Intel Pentium-class system on a chip. It is the first board based on Intel® architecture designed to behardware and software pin-compatible with Arduino shields designed for the Uno R3. Digital pins 0 to 13 (and the adjacent AREF and GND pins), Analog inputs 0 to 5, the power header, ICSP header, and the UART port pins (0 and 1), are all in the same locations as on the Arduino Uno R3.

Now there is an Intel based Arduino – Intel Galileo - [Link]

3 Oct 2013


Gaurav Chaudhary writes:

This little project will demonstrate how you can build NEC protocol based Infrared Remote Control to use with various NEC Protocol IR receivers. actually there are lots of projects out there to accomplish this task but i have to write my own code because of too many requests on this IR(infrared) Remote Control Relay Board with PIC 12F675 Microcontroller people keep asking “Where is the Transmitter for this” although you can use any NEC protocol based remote ,but i just wanted to build one by my self. so here it is.


NEC Protocol Infrared remote control with a microcontroller - [Link]

3 Oct 2013


If you are looking for datasheets online you may try DatasheetLib.com datasheet library. DatasheetLib offers a huge selection of datasheets on a well designed webiste and without the need to register an account. The website aims to help you find the right datasheet and display it on your browser or download it in PDF format with a minimum of mouse clicks and without annoying advertisements or popups. Once you are on the site use the search function to look for your datasheet. All you need to do is type in the required item’s name, and DatasheetLib will immediately start displaying relevant suggestions as you type. Then choose your datasheet from the list and you go straight to the preview page. The online preview looks fairly intuitive and handles everything well in a distraction-free environment. Each of the datahsheet page is displayed on a thumbnail and you can easily switch between pages clicking on it. Additional, there are related datasheets suggestion on bottom of the page. DatasheetLib.com does a great job in facilitating datasheet search among millions of them and it does it with ease and for free. We suggest you to take a look by yourself.

DatasheetLib.com – Find & Download Electronic Component Datasheets - [Link]

2 Oct 2013

What’s inside an old style bank note/bill accptor/validator for vending machines and the like? How does it detect genuine notes from dodgy ones?

EEVblog #525 – Bank Note Acceptor Teardown - [Link]

2 Oct 2013


This tutorial is an introductory tutorial on getting started with the MSP430 series of controllers by Texas Instruments. muaz @ zeroohm.ae writes:

There are millions and trillions of ways to start using microcontrollers. Hobbyist or people who find hard to code normally prefers Arduino as their coding environment, while engineers might prefer using AVR/PIC. The MSP430 microcontroller is an extremely versatile platform which supports many applications. With its ability to consume ultra-low power it enables the designing engineer to meet the goals of many projects. It has, of course, its limitations. It is inclined mostly towards low energy and less intensive applications that operate with batteries, so processing capabilities and memory, among other things, are limited. However it’s still called a mixed-signal processor and is capable of doing some sort of speech processing. Before starting with some exposure to hardware and software part, I assume that you all have some sort of programming knowledge in embedded c. Even if you know java or c++, you will still be able to adapt to the tutorials easily as the logic will remain the same, only the code language changes.

Getting Started With The MSP430 - [Link]





Search Site | Advertising | Contact Us
Elektrotekno.com | Free Schematics Search Engine | Electronic Kits