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30 May 2014


This is the portable version of the Xminilab. The Xminilab Portable is a small mixed signal oscilloscope with an arbitrary waveform generator and protocol sniffer.


  • Mixed Signal Oscilloscope: Simultaneous sampling of analog and digital signals
  • Advanced Trigger: Normal / Single / Auto, with rising or falling edge and adjustable trigger level
  • Meter Mode: Average, Peak to peak and Frequency readout
  • XY Mode: Plot Lissajous patterns, See the phase difference between two waveforms
  • Spectrum Analyzer with different windowing options and selectable vertical log
  • Horizontal and Vertical Cursors with automatic waveform measurements
  • Arbitrary Waveform Generator with Sweep on all parameters
  • Display options: Persistence, Different grid options, and more
  • Curve tracer function

Xminilab Portable Small Mixed Signal Oscilloscope 2.42″ OLED - [Link]

29 May 2014


Precise heatsinks from the production of Fischer Elektronik will take care for your devices to stay “cool”.

Over 40 years of experience of company Fischer reflect in an excellent reputation and mainly in a stable high quality of their products. Main production portfolio consists of heatsinks, connectors and enclosures. Narrow specialization on mechanical and electromechanical components is reflected just in details. We can be sure, that a heatsink which we´ll use in our device, will be available the same precisely made even in a year, two,…

Fischer Elektronik takes care for one of the most important feature of heatsinks – planarity and surface smoothness in a place of a supposed touch of component with a heatsink. This a critical place, as even the best heat-conducting pastes have still a noticeable worse thermal conductivity than aluminium and just a high planarity and smoothness enables to use only a thin paste layer.

Also available are versions with an anodized surface (natural, black and other colors) as well as various “exotic” shapes. Upon request company Fischer also makes a custom products, drilling, milling,…
And what in the case that we need to cool kilowatts? – in that case it might be a suitable solution to use a liquid cooling, which can be also find in the Fischer Elektronik catalogue.

Leave an excess heat to Fischer heatsinks - [Link]

28 May 2014


If we´re deciding whether to use a classic transformer or better a modern electronic switch-mode power supply (SMPS), it´s good to realize pros and cons of both technologies.

Switch mode power supplies Myrra series 47000 already found their stable place on the market and they gradually replace classic transformers. Why is it so?

Switch-mode power supplies definitely win in a perhaps the most important requirement of these days – in efficiency (in a whole load range) and in a low no-load consumption (Standby). Similarly also many other factors say in favor of switch-mode power supplies, for example power/ weight ratio, size, simple elimination of a high inrush current, silent operation, minimum stray magnetic field, …From these reasons for the majority of applications it´s better and often even cheaper to use an “electronic replacement” of transformer – for example modules series Myrra 47xxx or AC/DC modules Traco Power for higher power ratings.

Maybe it´s worth to question, whether there´s still any reason to use a classic transformer in usual applications with power demands say 1-1000W? Surely yes, for example in application very sensitive to HF radiation (HF receivers, pre-amplifiers,…) but also in applications with a demand for the highest reliability for decades. Transformer is a component which almost doesn´t age and if properly sealed in a resin, then it´s lifetime is extremely long. As a transformer doesn´t contain any semiconductors, capacitors etc, it´s also very resistant to various spikes, overvoltages and noise in a power line…

Power supplies of 47000 series have a very low no-load power consumption – only 200 mW, resp. 300 mW at unregulated types. With the 4000VAC isolation (input/output), they´re ready for a class II – reinforced isolation. With a built-in protection against shortcut and over-temperature, they´re ready for usage in a virtually any device with power demands up to approx. 5-5,4W.

Detailed information will provide you the Myrra 47000 datasheet and the article Save energy and production costs with Myrra 47000 switch-mode power supplies.

Transformer classic or an electronic one? - [Link]

28 May 2014


Open CPU concept at the Quectel M85 GSM module opens new possibilities in simplification of a design, as a part of system resources can be used for an application.

For a usage of GSM/ GPRS module in a target device we usually need also an external microcontroller, which controls the module itself and an overall communication and it also usually controls other parts of your device. The OpenCPU concept at the Quectel M85 module takes this approach so to say “from the opposite side” and enables to use a part of system resources of the module for your own program. In result it means, that no external MCU is necessary what naturally saves production costs and also a PCB space.

Attached picture illustrates difference between a standard configuration (GSM module + MCU) and the OpenCPU configuration. M85 module already supports also various new standards like eCall/Era-Glonass, M85 OpenCPU support a free GCC compiler (Sorcery CodeBench Lite ARM EABI) and also ARM RVCT. For a development and editing of software can be used several tools like Source Insight and Microsoft Visual Studio. M85 module system resources mainly consist of CPU 32-BIT ARM7EJ-STM RISC 104MHz and memory (64Mb Flash + 32Mb RAM), 640KB is a free space for „App image bin“, 2MB RAM for an application SW and 1MB for files and data.

Closer insight about this interesting system will give you the „Quectel M85 OpenCPU” presentation. Quectel provides various tools, application notes and examples for the OpenCPU system. Upon request, we´ll send you a detailed documentation by an e-mail. All that is necessary is to express your interest in a form below this article.

With the M85 module you don’t need a host MCU - [Link]

25 May 2014


“Plus” version of new graphic modules FTDI with an EVE technology brings a big plus in a form of a compatibility with an Arduino platform. 

Innovative graphic chips of the family EVE were introduced to you in our article: Is a display design difficult? Leave it to „Eve“! or also in the webinar in cooperation with the producer – FTDI. This time company FTDI comes with another significant step to make development easier – compatibility with an Arduino platform.
New versions of VM800 modules with the „P“ (Plus) suffix contain besides the graphic chip FT800 and a touch display (3,5/4,3 a 5,0“) a RISC procesor ATMEGA328P (16 MHz) with a precompiled Arduino „bootloader“ (from the supplied 4GB uSD card). It means, that applications can be developed in a free Arduino IDE environment and to use a huge amount of Arduino libraries. “Plus” version also contains a USB interface with the FT232R chip and a precise bezel (Black or Pearl). Also available are over 50 sample “EVE” applications including various gauges, keyboards and other usable in a target device. It can be said, that the Plus series is designed to be directly used not only for development, but also into a target device as a standalone graphic module (HMI) able to control even other peripheries and to communicate through a USB port. The module can be powered through a microUSB connector or from an external 5V adapter.

FTDI brings for a maximum versatility two possibilities of programming:
• through a so called HAL interface (Hardware Abstraction Layer ) enabling cooperation with various MCUs through an SPI interface as described in the Application Note 246 – VM800CB_SampleApp_Arduino_Introduction
• by using Arduino libraries as described in the document Application Note 318 – Arduino_Library_For_FT800_Series

Thanks to a close cooperation with the producer we already have first pieces in of VM800P modules in stock. Detailed information can be found in the VM800P datasheet.

Be in plus with a graphic platform FTDI VM800P - [Link]

22 May 2014


Connectors M.2 also called as NGFF have a chance to become a widely used standard in computers, communication equipment and M2M applications.

The newest member of the data connectors family in our offer are connectors Attend series 123, so called NGFF – New Generation Form Factor connectors, also known as „M.2“. Their main advantage is implementation of PCI Express 3.0, Serial ATA 3.0 and USB 3.0. buses into one connector. The connector is considerable miniaturized and at the length of only 21.8 mm it has up to 75 pins ( 0.5mm pitch/ 50V/0,5A). M.2/ NGFF are designed as a future standard for SSD memory media, WiFi, Bluetooth, GPS/GNSS, NFC and other modules. As it´s not a “specialty” of one producer but it´s a connector designed as an international standard, their usage in your device can be advantageous thanks to a supposed easy availability even in the future. An important fact is, that connectors are produced with various keying (A-M). That provides a possibility to differentiate various modules on one board and prevents improper connection (PCIe x2, PCIe x4,…).

M.2 connectors are designed for a direct insertion of PCB, i.e. one part of a connection (M) is a PCB and another part is the connector (F). Connectors support various PCB widths – 12, 16, 22 and 30 mm. Depending on a type, M.2 connectors also enable a double-sided assembly of components on a PCB.

Another novelties from the Attend production in our stock are interesting types for SIM cards, as well as combinations 2xSIM(115L-AB380), 2XSIM + uSD (115M-AB360) and other, which can be found below this article.

Will a New Generation Form Factor become a new standard? - [Link]

17 May 2014


DC/DC switch mode regulators TRACO will save the most precious substance – energy. And now they´re even more affordable thanks to a lower price and better stock.

Maybe, switch-mode regulators are familiar to you from your own praxis or at least from our articles New switch-mode stabilisers Traco TSRN-1 for positive and negative output or Try the effective replacement for standard 78xx regulators and many other.
Fortunately even in this segment it´s true, that thanks to a still bigger popularity of these regulators their price drops down. Moreover, thanks to our close cooperation with the producer – Traco Electronic AG and still bigger stocks we gain a better purchase price and that´s why a better sale price for you as a result. It´s the most obvious in the most popular versions like for example TSR1-2450 and TSR1-24120 with output voltage of 5V or 12V.And the main difference between series TSR1 and TMA? TSR is a so called POL (point of load, non-isolated) regulator, thus it works as “almost lossless load” (buck converter) regulating output power similarly like classic regulators (7805, 7812), only naturally with a substantially higher efficiency. Similarly excellent is also an output voltage stability at a load variation ( typ. 0,4% / 10-100% load). Series TSRxx has the same max. output current for all output voltages, i.e. for example 5V/1A or 12V/1A. In many applications it can be beneficial that TSR operates with up to 36V input voltage.

On the other hand, series TMA is an isolation DC-DC module with an output transformer operating at high frequency (tens to hundreds of kHz). Advantage of the TMA series is a complete galvanic isolation of an output voltage (so called floating voltage) and that´s why it´s suitable even for power supplying of various measuring probes, AD converters and other devices requiring isolated power supply or elimination of ground loops. Despite a significant advantage in a form of an isolated output this type of DC-DC modules has somewhat worse output voltage stability at a load change (max +-10%/20-100% záťaž). Max. output power is constant for a given series (TMA-1W, TMR-2, TEN3-3W, …) i.e. versions with a higher output voltage provide a lower current.

The most comprehensive overview of available DC-DC and AC-DC modules will provide you the short-form Traco catalogue and datasheets at particular types.

Traco TSR, TMA – when every Watt is precious - [Link]

15 May 2014


UDOO as one of the most powerful embedded PC (SOM) of this date breaks borders in the price/ performance ratio.

There are several microcomputers on the market, which usually support OS Linux, Android or Windows. Their usage is so to say unlimited – from simpler devices, where we´ll use mainly a ready-made connectivity (USB, Ethernet, bluetooth, WiFi, …) to more sophisticated applications in combination with TFT LCD and a powerful graphics, video, etc. Each type has its advantages (Voipac, Embedded artists, Beagle board, Friendly ARM, Raspberry Pi, …) and one of the most surprising modules is surely the microcomputer UDOO. UDOO is a powerful single board embedded PC based on a powerful Freescale i.MX6 chip and it´s available in Dual or Quad core version.

In our offer can be found the more powerful Quad version (S975-G000-2100-C2, 1GHz), which is roughly 4x more powerful than for example Raspberry Pi. Power of this microcomputer is already really respectable and it manages various 3D visualizations, videos and (real time) communication through various interfaces. Interfaces – it´s the field where the UDOO excels, because it provides on one board interfaces like Gbit Ethernet, 4x USB, HDMI, WiFi, Touch, 76 GPIO, SATA, camera, microSD,… A big advantage is a full compatibility with an Arduino Mega 2560 platform (hardware and software)..

Functionality of the UDOO microcomputer is very wide and a detailed description can´t be summarized into a short article. The best overview of features and possibilities of this module will give you the attached video as well as basic UDOO user manual.

Do you want a microcomputer which will “handle everything”? - [Link]

12 May 2014


Alan Parekh of Hacked Gadgets writes:

Thanks to Circuit Specialists for sending in this 3 chanel power supply. The Hantek PPS 2320A sure packs in a ton of features for the price. The video below goes through the unboxing of the power supply and a quick run through its features. Overall it functions quite well, there are a few questions that need some clarification. I will have a look through the manual and reach out to the guys over at Circuit Specialists if I can’t find the answers.


Hantek PPS 2320A review - [Link]

10 May 2014


We bring you basic useful accessory of every development and testing workplace – measuring and testing leads in the best available quality.

Whether you measure daily or only sometimes, probably you know, how significantly helpful various accessories can be. Or otherwise – how much time can consume unreliable measuring cables or other accessories, when after a long investigation for a mistake in a design you´ll find, that everything is OK, only a measuring cable had a bad contact …

For everyone who has a will and time to assemble measuring tools we have measuring tips, clips, bananas and other accessories from company SKS (Hirschmann-SKS). For those of you, who better prefer ready-made, professionally made measuring cables, we have an elegant solution in a form of the cables themselves, as well as measuring sets. Such cables and sets are especially suitable for professional workplaces and for a mass usage in assembly and testing.

Company SKS is a long time focused for measuring accessories and its products under a mark SKS-Hirschmann are known by their quality and ergonomics. From the wide production portfolio of SKS can be found in our store for example cables with a banana and a socket for a header MALN series), safety measuring leads (MALSW series), measuring leads with bananas on both sides (MLN), measuring leads with measuring tips, as well as measuring sets – PL2600 or PMS series. All measuring leads are highly flexible and with a thick insulation.

For workplaces with a high risk of damage of measuring leads from for example a hot soldering tip or other heat source are an ideal accessory silicone testing leads series MLS SIL. A „complementary” but very valued feature of silicone testing leads is also their extreme flexibility resulting in a very comfortable work. These leads we´re able to provide you upon order. Detailed information about measuring and testing equipment can be found in the Hirschmann SKS catalogue.

SKS testing lead will be your favorites - [Link]





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