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22 Jul 2014

obr1561_uvod

Viewing angle around 160°-170° and an excellent contrast say in favor of character displays with OLED technology.

OLED technology (Organic LED) slowly but surely finds its place even in industrial devices. After a big success at mobile phones, where they convince by high contrast and an excellent viewing angle, this technology becomes price-affordable and technologically advanced even for industrial applications.Benefits in short:

  • OLED means, that every pixel is principally one „planar“ LED, thus each pixel emits light (white, RGB or some color). That means, that OLED doesn´t have / doesn´t need backlight and it also helps to a high contrast, as there´s no problem with a light bleeding through “off” (black) pixels, as it is often at LCD displays. High contrast also ensures excellent legibility even at a strong daylight.
  • wide viewing angle. As every pixel (point) is itself a light source, it shines in all directions (half-globe) and it provides an extreme viewing angle near to a theoretical maximum of 180°
  • extremely wide operating temperatures range, frost doesn´t “slow down” display response time
  • the same color from every viewing angle. This is vital at color (RGB) OLED displays and it means almost zero color shift at viewing from various viewing angles, so well-known from TFT LCD displays
  • low power consumption, partially dependent on a display content (number of switched-on pixels and their intensity)

New character displays from company Winstar belong to advanced displays with declared features. In our stock can be found types for example WEH001602ABPP5N00000 (16×2, blue), WEH001602AWPP5N00000 (16×2, white), WEH002002ALPP5N00001 (20×2, yellow/orange – „amber“) and WEH002004ALPP5N00000 (20×4, yellow/orange – „amber“) and other. They all have 8-bit parallel interface „6800“ and a modern controller WS0010. Direct comparison of OLED display with an FSTN LCD is best illustrated in the attached video.

OLED displays can be read even “from a side” - [Link]

21 Jul 2014

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With a height of only 4.5 mm are new terminal blocks able to connect LED modules and LED panels aesthetically and with a maximal reliability.

There are numerous SMT connectors on the market, which are suitable for usage on LED panels but even in other applications. That´s why it´s a logic question – why just Wago 2060?

Firstly it is because of a sophisticated construction of a terminal block with a globally known and million times proven screwless spring clamp CageClampS. This clamp has an optimum pressure on a wire ideally responding to a wire diameter, i.e. the thicker wire, the bigger pressure. Also thanks to this is the max. allowed current up to 9A (!). Further, it´s possible to install solid and ferruled wires even without tools. By a simple pressing to a terminal block (for example by a screwdriver), it´s possible to insert even fine stranded flexible leads and by similar way also to disengage. Features of a clamp don´t get worse neither after multiple disengaging of a connection and they remain stable even after a long period of operation.

From other positives it´s necessary to mention a “balcony” construction of an input portion, which makes installation of wires easier and faster. Sufficiently big flat area ensures a reliable application on assembly machines (pick-n-place). And finally – an aesthetic curved shape and a white/cream color cause, that connectors are inconspicuous and they don´t disturb on a PCB.

Terminal blocks are available in 1,2 and 3-pole version. You needn´t be in doubt that you missed development and you still don´t know a circuit operating on 1 pole :-) – naturally the single-pole version is intended for connecting of several modules into series. A big plus is also availability of interconnecting both-sided pins enabling easy and aesthetic creation of a row (string) of several modules.

Pin spacing is 4mm and there´s also available a version with 8mm pin spacing with operating voltage of up to 600V. Connector casing is made of an advanced material (glass fibre reinforced PPA) with a very wide range of operating temperatures.

Novelty is also a newer version – Wago 2061 with up to 12A max. current. Detailed information will provide you the Wago 2060 brochure.

Wago 2060 terminal blocks don’t overtop LEDs - [Link]

19 Jul 2014

obr1560_1

2x UT33 – with a manual and also automatic range selection are ideal “reserve” tool for every workplace.

Majority of us already probably has its own favorite multimeter. However, sometimes it happens, that we need to measure two parameters at once (for example voltage and current) and with one device it´s usually not possible… Even though it´s obvious, that it would be ideal to have two multimeters, you didn´t buy it, because you simply don´t want or can´t invest a considerable amount into another tool (maybe even a “top level” one.
That´s why we have for you a tip how to solve this dilemma. It is the multimeter Uni-Trend UT33 and right in two versions:

  • UT33A – automatic range selection, max. count 3999
  • UT33C – manual range selection, max. count 1999

Both tools feature an excellent price/ performance ratio. For the price of approx. 8-11 Euro they offer measurement of all common parameters, incl. AC (voltage, UT33A also current). UT33A also measures hFE of transistors, UT33C a temperature by a K probe. In many cases a higher resolution of UT33A (3999) can be very beneficial. Decent accuracy, solid construction and exchangeable measuring leads (not hard-wired to a device, as usually in this price-level) belong to another pluses of this series. Naturally, multimeters UT33 are also suitable as a “main” tool for beginning amateurs and students.

Further information will provide you the attached pictures and UT33A and UT33C user manuals.

Universal multimeters UT33A and UT33C for a special price - [Link]

17 Jul 2014

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Programmable DC, AC, current- and high-voltage power supplies, electronic loads, UPS, inverters and chargers of small and high power suitable for production and servicing – this is Elektro Automatik.

When we establish a production or testing workplace, we usually can´t omit a suitable power supply. Sometimes a „universal“ like 2x30V/3A is sufficient, but often not. It´s well known fact for those of you, who produce devices various devices requiring higher current or higher voltage. Typical representatives are equipment for automotive industry, various drives, backup sources, solar devices etc. In these case tens to hundreds Amps and/or hundreds to thousands of Volts are no rarity.

Right for these purposes, German company Elektro Automatik produces devices and systems for power supply and simulation of conditions in a real operation. Adjustable DC and AC power supplies, current sources, electronic loads and other devices can serve for a thorough examination of your devices even in “border conditions” and they can help to discover eventual hidden faults which might occur later in a real operation. Many Elektro Automatik products are programmable and they´re also connectable to some of common buses like CANopen, Profibus, ProfiNet, DeviceNet, Modbus, Ethernet and also RS232. Also interesting are for example electronic loads with energy recovery, where the lost energy doesn´t transform to heat but returns back to mains line with efficiency of about 93%.

Upon request, we´re able to provide you with any product from the Electro Automatik catalogue (14,5 MB).

Where common power supplies end, there the Elektro Automatik begins - [Link]


15 Jul 2014

obr1557_1

IQRF meets demands of developers and smaller companies and brings possibility to develop wireless applications without programming and with minimum initial costs.

IQRF Alliance and an advantage of usage of Direct Peripheral Access – DPA and hardware profiles were introduced to you in our article IQRF Alliance brings wireless networks without programming. By entering to an IQRF Alliance the user gains access to a full DPA functionality, what greatly simplifies development and usage of IQRF wireless modules. DPA ensures compatibility of all products using this protocol and thanks to this it´s possible to add functionality of wireless communication into your product within few days or weeks.

However if you don´t suppose so fast deployment of your product and a 1000 Euro credit/ year is uselessly too expensive for you, now you have a possibility to use DPA and hardware profiles even without entry into the IQRF Alliance. The only thing you need is to develop with modules marked with „DC“ prefix (data controlled), i.e. for example DCTR-52 … Various IQRF modules are available in two versions – standard, as well as „DC“. If you´re a member of IQRF Alliance, standard modules are the right ones for you (without marking „DC“). If you´re not a member of an IQRF Alliance but despite this you wish to use significant simplification of development in a form of DPA and hardware profiles, then the “DC” modules are ideal for you. For a slightly higher price you have a chance to develop and use wireless communication and control with a maximum simplification. It is beneficial to use “DC” modules up to approx. 400 pcs/year. Then it´s already more advantageous to become a member of IQRF Alliance.

IQRF technology features, description of a new development environment IDE and OS, as well as advantages of IQRF Alliance membership advantages can be seen in a record from our webinar Wireless MESH networks without programming.

Creating of wireless MESH networks now even more effective - [Link]

13 Jul 2014

obr1555_1

Discovering of overheating and joints with a high resistance has never been easier and safer. With the type Flir i3 now moreover price-affordable.

Thermal cameras, i.e. cameras sensitive in infrared range bring a useful information – picture with virtual colors responding to a temperature of a scanned surface. Maybe, at the word “thermal camera” you too get an idea about a well known usage in buildings – inspection of a heat leakage (thermal bridges) = status of a thermal insulation of buildings. But that´s only one of many ways to use these devices. In electronics and power engineering it´s far more interesting for example:

  • searching for faults on a PCB, optimizing of layout in respect to an even heat distribution
  • inspection of distribution boxes with cables, terminal blocks and circuit breakers
  • inspection of motors and transformers
  • inspection of cables interconnections (overheating caused by a high resistance)
  • inspection of cooling efficiency – heatsinks, fans, …
  • inspection of solar panels

…and all this at full operation and under (often high) voltage.

„I have an infrared thermometer, thus I need no camera” – this is a frequent opinion – until the time, you once try working with a camera. The joke is, that one picture from for example camera Flir i3 with resolution of “only” 60×60 pixels equals to 3600 measurements of an IR thermometer. It can be said, that one picture taken by the camera even exceeds 3600 measurements (done by an IR thermometer), because a spatial resolution of the thermal camera is usually better (surface measured by one pixel is smaller) than that of IR thermometers. This way it can happen, that a small source of heat (for example a small overheated component) can´t be discovered by an IR thermometer, while with a camera it will be clearly visible. Naturally, there are many applications where only an IR thermometer is sufficient, but cameras are far better for a professional usage and a maximum work efficiency.

That´s why we decided to incorporate into our offer the world renowned cameras from company FLIR, which is on the edge of development in this segment. As a standard stock item can be found type Flir i3 (3600 px) with resolution of 0.15°C and a viewing angle 12,5°x 12,5°. Big 2,8“ TFT display shows all necessary information and settings. Very advantageous is a possibility to store up to 5000 snapshots into a uSD card (2GB, jpg) and a consequent transfer of files into a PC through a USB. Further detailed information will provide you the Flir i3 datasheet.
Upon order we´re able to supply you any other type from company FLIR in a short leadtime..

Even hidden faults can be found with FLIR thermal cameras - [Link]

10 Jul 2014

obr1554_1

There´s only one original, even though with a fake, it´s possible to “gain” also something unwanted – hours of debugging and costs for exchange.

Copying of products and components is perhaps as old as an industrial production is. Logically – it´s easier to jump up to a “running train” (to copy a renowned product) than to develop something new. Everyone, who develops an electronic device probably can confirm, that it´s demanding and expensive. Similarly it´s also at development of chips. Well known and widely used chips for a USB interface . from company FTDI belong to the most popular on the market. No wonder, that it´s fakes appeared on the market, with the same appearance as an original (on the first sight). Despite the fact, that the price of the FT232RL chip is relatively very affordable, a vision of a cheaper purchase was certainly attractive though expensively paid at the end.

On the enclosed photo, there´s an original on the left side and the fake on the right side. It´s visible, that the original has a laser engraved marking, while the fake has it only printed. But that wouldn´t be a problem… Fake worked so-so well until the time, when FTDI upgraded drivers with a utility able to detect fake products. In case of fake, the USB communication fails (sends only zeroes).

On the enclosed photo, there´s an original on the left side and the fake on the right side. It´s visible, that the original has a laser engraved marking, while the fake has it only printed. But that wouldn´t be a problem… Fake worked so-so well until the time, when FTDI upgraded drivers with a utility able to detect fake products. In case of fake, the USB communication fails (sends only zeroes).

The result is clear in this case – exchange of non-working fakes from target devices (from customers! is significantly more expensive that a usage of an original would be. And how to be certain about the authenticity of the component? – by a purchase from an authorized distributor. SOS electronic is already for many years an authorized distributor of FTDI with a close cooperation and an above-standard technical support.

Be aware of the FTDI chips fakes - [Link]

6 Jul 2014

We’ve again reached record attendance of our webinar! More than 100 registered patricipants and 4 winners of Weller products.

Last webinar before summer was dedicated to Weller. Rudolf Horl from Weller prepared interesting information about new soldering station WSD81i, as well as other information about various functions or tips concerning care about soldering station and tips.

Record from SOS webinar – Mastership in soldering - [Link]

3 Jul 2014

obr1552_1

Switch-mode regulator Traco TSR 0.5 will give you as much as you need. If you have an application, where 0.5A is sufficient, then the new series of DC/DC modules is ideal for you.

Maybe, it´s worth to ask a question, whether it makes sense to use a switch-mode regulator for such a low current? For sure yes, at least because of two reasons. If we need to create 3.3V from for example 12V, then at a current of 0.5A a power loss of 4.35W appears at a classic linear regulator. That´s already a quite considerable power, able to heat up a device – especially at smaller enclosures and a dense population on a PCB.

Another reason is energy saving – especially at battery powered devices. Switch mode power supplies (SMPS) have a “genial” feature, that thanks to their high efficiency we use practically whole power drawn from a source, i.e. if we need say 5V/0.5A from a 15V source – we won´t take from it 0.5A but only approx. 0,17-0,18A.

Novelty of company Traco Electronic – series TSR 0.5 is by its function very similar to well known, proven DC/DC regulators TSR1 or TSRN1. The main difference is in a smaller allowed current and a feelingly lower price . That ´s why this series is very suitable for any application, where a current of 0.5A will be sufficient. A big advantage can be a wide operating temperatures range from -40 to +90°C (power derating 5%/K at temperature above 80°C). Maximum input voltage of 32V enables a usage even at power supplying from various alternative energy sources with a big input voltage fluctuations.

This novelty is so far available in a version with 5V output voltage (TSR 0.5-2450) and soon there will be another.

Why to pay for the current, which you won’ t use? - [Link]

30 Jun 2014

obr1551_1

3,5″ display with the processor Diablo16 from company 4D Systems can handle even applications, where processor Picaso is not sufficient. 

So as to make it right – it´s still true, that processor Picaso is a relatively very powerful graphic processor able to manage demanding applications with graphics, animations, sound, video,… Naturally, like each processor, there are applications where its power is sufficient with a reserve and for someone already not. If you suppose, that processor Picaso wouldn´t suit to you by its features, or at least it wouldn´t enable eventual further enhancing of functionality, then the Diablo16 processor will meet even high requirements.

In behalf of processor Diablo16 says not only the computing power itself, but also the other functionality as a memory size, communication interfaces, analog inputs, GPIO and other. Until now, the power of Diablo 16 could be used in two ways – in the uLCD-70DT module (7“, 800×480), or in your own design using the processor itself. Now, company 4D Systems comes also with a 3,5“ module (480*320px) uLCD-35DT, „driven” by this powerful processor.

Another good news is availability of a new CMOS VGA camera module – uCAM-II with a serial output (UART TTL). As a standard, the camera is equipped with an optics with a 56° viewing angle. Also available is the exchangeable optics, with a 76° and 116° viewing angle.

Similarly like at all 4D Systems modules with Picaso and Diablo16 processors, also in case of uLCD-35DT module can be used for development of application a powerful software package – Workshop4 IDE.

Detailed information will provide you the Diablo16, uLCD35DT and uLCD70 flyers.

Try the hell power boxed up in 3,5″ - [Link]



 
 
 

 

 

 

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