Tag Archives: soselectronic.com

FUN but REAL: Manually or lying down

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Yes, these are your options when you want to set time relay of 12.51 series from Finder producer.

Italian producer accommodated less active installers that can now set, resp. program time relay also lying down. Of course, something for something – you need to have a computer but luckily it is something that almost any installer has in his pocket – a smartphone supporting NFC. So, how does it work and what needs to be done:
● Select the appropriate moment – it can be even in the middle of the night
● Choose a comfortable bed – empty one would be the best, so you don’t get distracted by anything
● Put on a comfy clothes – even dungarees, but in that case we suggest covering the bed with polythene
● For the first time, you need to be able to connect to wi-fi from the bed so you can easily download free app FINDER Toolbox from the GooglePlay.

Lay comfortably down – the most well-known and used positions are these four:

  • on the back
  • on the belly
  • on the side version L (on the left)
  • on the side version R (on the right)

In case of using a polythene, you can use all four positions also with legs on the pillow

  • The work itself is just a “game on the phone”
  • Start the game FinderToolbox. Set when and for how long you want that thing to be on and save the settings.
  • The most difficult phase of programming is about to get started. Get off the bed, come to the time relay and touch the actual time relay with your smartphone – that’s when the settings will be transferred to relay

Time relay 12.51 looks like an ordinary time relay on a DIN rail with big nice display backlight – blue signs on white background that effectively shows the necessary information.

Relay also allows programming with joystick (thus manually). This mode is for those who cannot relax while working.


FUN but REAL: Manually or lying down – [Link]

FT900 – flexible bridge between interfaces

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FT900 is 32bit RISC MCU developed for high speed, interface bridging tasks.

FT900 provides a large amount of connectivity options. To name only a few, FT900 can:

● process data from parallel camera input and send them via Ethernet
● transform data from camera to create bitmap compatible with FT8xx (EVE) and send it through SPI to display
● collect and process data from available interfaces and store them to SD card
● communicate with wireless modules connected to SPI or UART and send data through Ethernet, USB or CAN interface
● play music stored on SD card by using of external codec connected to I2S interface.

Software development is supported by:

● GNU Tool chain (GCC compiler, binary utilities, GDB debugger) integrated with Eclipse IDE with C/C++ plugin (CDT)
● UMFTPD2A debugger/programmer (1-wire debugging seamless compatible with GDB)
● MM900EV2A evaluation board with front-facing 1,3M pixel camera module, optimized for use in home security, industrial control, home/building automation systems, data logging and embedded multimedia applications.
● MM900EV-LITE optimized for HMI and embedded display applications

The first samples of FT900L-T, MM900EV2A, MM900EV-LITE and UMFTPD2A can be found in our stock. For FT90x series overview please see MCU brochure.


FT900 – flexible bridge between interfaces – [Link]

Fluke – Quality First

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All of us desire to have quality things for us art is almost a necessity. Quality multimeter saves time for those we are used to from the brand FLUKE.

All of us have experienced in your life situation where a quality product saved us a lot of time and energy. Whether it was an ordinary screwdriver or fork wrench or pliers or quality meter. High quality – this is what FLUKE focusing on. This company is well known among the technically skilled customers.

Take for example the range of measured capacity – FLUKE 287 and FLUKE289 measure up to capacity of 100mF – it is not common for other producers. Frequency range – or measurement range of these multimeters is up to 1MHz, which also can not be found in a mid-range instruments, not to mention the accuracy of the readings – 50000 counts with basic accuracy 0,025% VAC and VDC, 0,15% at current measurement. Of course there are voltage measurement (up to 1000V), current (up to 10A), temperature, resistance and short circuit.

This great instrument (Fluke 289 / EUR) you get now from us also with a set of accessories and practical bag, PC software included (Fluke 289 / FVF / EUR). For those who do not need a high-end multimeter FLUKE has more affordable models, for example sériu FLUKE 17x series or series FLUKE11x, of course, also in FLUKE quality.


Fluke – Quality First – [Link]

Microcontrollers with USB interface are common, but…

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FTDI.FT-X series USB to serial bridges can be still reasonable option even for today.

Microcontrollers with USB interface are common nowadays. Manufacturers provide source codes for USB device classes like CDC, HID, Mass storage and DFU. . Even in this case, programming USB communications may not be a trivial task. If it is only required to replace RS232 serial interface to USB, is worth considering using of FTDI TF-X series USB to serial bridge.Advantages:

  • Entire USB protocol handled on the chip. No USB specific firmware programming required.
  • Detection of connection to DCP (Dedicated Charging Port) USB port.
  • Lower requirements for microcontroller resources. Communication through UART, I2C or SPI is less resource demanding than implementation of USB CDC device class
  • Drivers for Windows, Mac OS-X, Linux and Android for free.
  • Microcontroller pins are connected to USB connector through USB/serial bridge. ESD or overvoltage spikes on USB bus can damage bridge instead of microcontroller. Replacement of small bridge chip is simpler than replacement of microcontroller.

Disadvantages:

  • USB/serial bridge chip requires PCB space and increases cost.

The X-chip brochure and X-chips overview. will provide you more information. Majority of FT-X series chips can be found in our standard stock offer


Microcontrollers with USB interface are common, but… – [Link]

Save space on your PCB with TRACOPOWER!

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TMLM family of 4-20W AC/DC power supply is the right solution on most important requirements – constraint space, high efficiency and cost saving.

Every square inch of your PCB costs money. It is a fact, and if you can reduce your PCB´s area, you actually save money. Moreover if you use a high efficiency power supply you save energy.The TMLM Series switching power supplies, offer highest power density in a fully encapsulated module which can be soldered directly on to PCBs. This feature makes these modules an ideal solution for all space critical applications in commercial and industrial electronic equipment. International safety approvals qualify the product for worldwide markets. SMD-technology and high efficiency guarantees a high reliability of these Power Supplies.

Save space on your PCB with TRACOPOWER! – [Link]

Turn with it with a minimum effort

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Wiha Proturn® screwdrivers enable a comfortable work, even in case you need to gain a high torque.

As we know, the “power” (torque) we´re able to reach by a common screwdriver depends mainly from two factors – from a screwdriver handle size and design and – from our own strength :-). Strength of our hand can be changed only by hard training but a screwdriver intended to gain a maximu “power” is available immediately. The Proturn series from compant Wiha is one of suitable series for this purpose. Series Proturn features a robust two-component handle, with parts made of hard plastic and a soft rubber resulting in a very good grip. Quality chrome-plated and through hardened CrVMo steel guarantees long lifetime.Practical opening in a handle enables comfortable and well-arranged hanging on a wall of your workshop. They´re suitable for all works on electrical devices up to 1000V AC/ 1500VDC (VDE and GS approval). Each screwdriver is individually tested according to IEC60900:2004. Directly from our stock we´re able to supply to you price-advantageous set 470N K601 containing 5 Proturn 3K electric screwdrivers (2,5×75/ 4,0×100/ 5,5×125/ PH1x80/ PH2x100) and one classic voltage tester.

Any other tools from Wiha we´re able to supply to you upon request in a short leadtime and at favourable conditions.


Turn with it with a minimum effort – [Link]

FUN but REAL: Nanotechnologies already in SOS electronic…

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You certainly all know that you cannot trust Wikipedia completely. In our case, it’s not about the lack of credibility but more about incompleteness. It is generally respected that there are more things that belong in the area of nanotechnologies – when something needs to be done from scratch, iPod Nano or Nano-SIM card holder.

With these, there is undoubted trend towards reduction (we heard about Pico-SIMs / but that is more of a pikotechnologies that are not object of our interest as of now).
In conventional applications, size of a SIM is not critical. But in portable devices, every nanometer saved is good. That’s why we offer new Nano-SIM card holders. All are universal – they accept red, green, acorns or bells nano-SIM cards. In higher society hearts, diamonds, clubs and spades are used – these also can be crammed in the holders.

FUN but REAL: Nanotechnologies already in SOS electronic… – [Link]

19″ system of enclosures will provide you unexpected space

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With plug-in enclosures from Fischer Elektronik, it´s easy to solve placing your device into a 19“ „rack“.

What enclosure to use for your electronic device and how to sort them when there are several ones on one place? That´s the question reaching almost to beginnings of electronics. No wonder, that since those times a lot of solutions were developed, which were so good, that they´re actual even nowadays. One of such examples is also a known modular 19“ system (482,6 mm wide), where various electronic devices are placed into a carrying rack.
This system is highly modular and at a fixed width it enables to use various height of devices. That´s why in a 19“ system can often be found thin (slim) devices only few centimeters high, but also giants with a height of several tens of centimeters.

Company Fischer Elektronik as a well known producer of device enclosures, heatsinks and connectors, produces a wide range of enclosures suitable for the 19“ system, where you certainly can find a type suitable for your application. A good example is the VESA series. VESA is a universal series of robust enclosures with removable top plate (cover). It´s available in width of 1U to 6U, what represents 43,8 – 264 mm.

Available are three various depths – 260, 300 and 360 mm. The enclosure consists of easy-to-assemble aluminium profiles. Guiding slots inside enable easy installation of PCBs and also available are various accessories and modifications like hands, lock and panels with ventilation openings. Into the enclosure, it´s possible to place a mounting plate (MPH) into the enclosure, which creates as if a double deck and also TS CE mounting rail. Drawings and detailed information about this enclosure can be found on page N8 in the Fischer enlosures catalogue.


19″ system of enclosures will provide you unexpected space – [Link]

Record from SOS webinar – Everything you have ever wanted to know about Physics of Humidity


Accuracy in a whole range of relative humidity measurement? You could find out during Sensirion webinar. Did you miss our webinar? Watch the video – record…

What´s possible and what not in the temperature and humidity measurement? Design Guidance & Handling Instructions for your applications and products and also application examples. All of this was led by Maximilian Eichbereger from Sensirion.All participants of the webinar could get development kit EK-H5 for special price and as a bonus could get the SHT31 reference design (functional board) for FREE.

Record from SOS webinar – Everything you have ever wanted to know about Physics of Humidity – [Link]

How to ensure a stabile RS485 communication?

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LTM2881 allows RS485 or RS422 communication even in harsh environment.

RS485 is often used as physical layer for industrial buses like ModBus, ProfiBus, InterBus, P-Net, BACnet and Bit-Bus. Bus length depends on data rate and can reach as much as 1000m.

Correct function of RS485 transceiver requires return path between GND of particular transceivers. This path can be created by connecting GND to earth potential (earthing) or by additional wire. In practical RS485 systems, ground potentials vary widely from node to node, often exceeding the tolerable range. This can result in an interruption of communications or destruction of a transceiver. Standard RS485 transceiver LTC485 is fully functional if GND potential difference is within ±7V. If difference exceeds ±14V damage or destruction can occurs.Using of additional wire which connects together all transceivers GND may looks like a good way how to avoid potential differences. But this leads to creation of ground loops that can even worsen situation.

Optimal solution is to use galvanically isolated RS485 transceiver powered from galvanically isolated power supply. In such a way GND of transceiver is fully isolated from earth potential and additional wire can be used to connect all transmitters GND together without creation of dangerous earth loops.

LTM2881 integrates all necessary components for galvanically isolated RS485/RS422 interface including isolated DC/DC converter into one compact part. No external components are required. Isolation is rated to 2500VRMS/1min and 560Vpeak-peak for continuous operation.


How to ensure a stabile RS485 communication? – [Link]