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25 Aug 2014

XMega-Interior

by embedded-lab.com:

Any microcontroller must have I/O pins for taking inputs and providing outputs. The ATXMega32A4U just like any other micro has 34 programmable I/O pins divided unevenly amongst six IO ports. Most I/O ports are 8 bit wide. XMega I/Os have digital, analog and special purpose functions. Some I/O pins have more than one use. A quick view of the XMega I/O pins reveals the purpose of these pins.

XMega I/O Ports - [Link]

25 Aug 2014

obr1572_1

Pleasant actuation characteristics and reliable features of a push button switch Marquardt series 1840 make it attractive for all applications where you require control by a push.

Classic push-button switches are favorite for many decades, maybe also because they´re well known already from the beginnings of electronics. Probably, a nostalgia is not the only reason making them popular, but mainly an easy control, when even an unacquainted person knows, that it´s something “what has to be pushed” to change a status of an electric device.

Exactly a term “to change a status” is important, because at these switches it´s not possible (or not easily visible), whether it´s switched on or off. Though it´s true, that the majority of such switches is a little bit pushed down (lowered) in a switched on status, but the difference is often small. That´s why these switches are not suitable for applications, where from safety reasons it´s necessary to know tha status of the switch before connecting to a mains line.

Switch 1841.1301 (SPNC) belongs to a top in this segment and offers a really pleasant control and a quality switching system with a mechanical endurance of min. 100 000 cycles. 6A/ 250V is far sufficient for many applications and assembly is simple – by means of an M12 nut supplied. An interesting supplement is also a neoprene cap integrated with an M12 nut, enabling to gain a considerable resistance to water and dust. Also available are 2-pole versions – 1842 and also versions functioning as a push-button (momentary).

There are 2 nuts supplied. One is “regular” – hexagonal and the other one is a round type intended to be used as a top cover on a front panel. Further detailed information will provide you the Marquardt 1840 datasheet.

Marquardt 1841 – above standard classics - [Link]

25 Aug 2014

IRnr140814

by elektor.com:

International Rectifier have announced the introduction of the IR66xx series of high performance 600V ultra-fast Trench-gate Field Stop insulated-gate bipolar transistors (IGBTs). The new high power family of devices features extremely low conduction and switching losses optimized for welding applications.

Utilizing Trench thin wafer technology to offer lowest conduction and switching losses, the new devices are co-packaged with a soft recovery low Qrr diode and feature ultra-fast switching (8 KHz – 30 KHz) with 5 µs short circuit rating. The 600 V IGBTs also feature low VCE(ON) and positive temperature coefficient for easy paralleling.

IR Launch Welding IGBT - [Link]

24 Aug 2014

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A breakout board for the 555 timer exposing the leads astable or monostable implementation.

Hello, my name is Patrick Grady and I’m a highschool senior in the US. I’m an avid programmer and tinkerer and love anything related to electronics and computers.

This past winter I took a class in Digital Electronics and was introduced to the 555 timer. One of the most common applications of the 555 timer is the astable mode, which is unfortunately rather clunky to build on a breadboard. This 555 breakout board does more than expose the 555′s eight pins: it sets you up to run your 555 timer in astable mode with slots to insert two resistors and a capacitor of your choice. This board eliminates all the wiring for the 555 timer. The 555 Timer Breakout Board Plus will cut out the tedium of setting up the 555 timer and will allow hobbyists to dig straight in to their projects.

As a electronics hobbyist myself, I recognize the usefulness of this simple device, but also acknowledge its relevance is limited to the niche market of hobbyist electronics. If you want this device or think a friend could use it, please contribute to the campaign and buy a 555 timer breakout board!

555 Timer Breakout Board Plus - [Link]


24 Aug 2014

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A four-channel remote control built using the EnOcean Pi by Kerry Wong:

In my last couple of blog posts, I did a brief overview of the EnOcean Pi sensor kit from Newark and demonstrated how to compile and run the example code using a Raspberry Pi. In this blog post, I will show a real world example – a four-channel remote control built using the EnOcean Pi in conjunction with the EnOcean pushbutton module.

[via]

A four channel remote control using EnOcean Pi - [Link]

23 Aug 2014

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by embedded-lab.com:

The Self-organizing Systems Research Group at Harvard has created a “thousand robot swarm“, named Kilobots, which can self-arrange themselves into shapes and patterns. Each robot in the group moves uses two vibrating motors to move and an infrared TX/RX pair to communicate with its neighbors and to measure their proximity. The Kilobot robot software and hardware design are available open-source for non-commercial use.

Self-organizing Kilobots - [Link]

23 Aug 2014

obr1570_1

Embedded modules may surprise you by their contribution and an overall costs savings.

As we know „embedded module“ is a quite wide term and it can represent a powerful microcomputer with OS, but it can also be a significantly simpler module with a microcontroller and peripherals, still able to add considerable functionality to a target device.

Typical representatives of useful modules, which add a lot – without big costs are so called quick start modules from company Embedded Artists. Their contribution is in a ready-made „tuned up“ PCB containing for example in case of module LPC4088 QuickStart Board (EA-QSB-016) the microcontroller itself (Cortex- M4), memory, display controller and many interfaces like Ethernet, USB, UART, SPI, CAN, PWM, Analog In/Out, I2C, XBee compatible connector and other.

Especially at low and mid-volume production batches their contribution is mainly in the fact, that it is a really proven solution with a guaranteed operating temperatures range, proper ESD protection and mainly – supported by a wide scale of development tools (free). In case of solving of problems, it´s still possible to contact customer support of company and a lot of hints for successful usage, source codes and libraries can be found directly on the producer´s website.

Try to go easier way - [Link]

23 Aug 2014

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World’s smallest Arduino Mega clone: an enhanced electronics prototyping platform. Better than a Mega, smaller than an Uno!  by MEGADOM:

The MegaCube is an affordable and enhanced electronics prototyping platform meant for the intermediate to pro user looking for more than what the Arduino Mega offers in a package that is smaller than an UNO and is easily embedded in a project at a lower cost than the Arduino Mega or its clone offerings.

The Fantastic MEGADOM MegaCube (Arduino Clone) - [Link]

23 Aug 2014

galileo2

by elektor.com:

Microsoft have released a non-commercial version of Windows based on Windows 8.1 to run on the Intel Galileo development board. A spokesperson for Microsoft said “This preview Windows image is another opportunity for makers and developers to create, generate new ideas and provide feedback to help Microsoft continue making Windows even better on this class of device”.

The board and OS are part of the Windows Developer Program for the IoT (Internet of Things) which Microsoft hopes will encourage developers of Internet-connected devices to experiment with Windows platforms. The Galileo kits include the standard Arduino Wiring API and a subset of the Win32 API. At the moment Linux is the OS of choice among makers and for the next generation of devices but Microsoft hopes to break that dominance. Intel released an update to the original Galileo Gen 1 board earlier this month which features an improved control of its PWM (Pulse Width Modulated) output signals to make the board better suited for the management of 3D printers and robotic applications. Galileo Gen 2 can also be powered from the Ethernet port which the earlier Gen 1 version did not allow.

Galileo now runs Windows - [Link]

23 Aug 2014

by mjlorton:

In this series of video I want to take a look at what the industry has to offer in terms of DC Power and Energy Measurement Meters / Analyzers (Analysers). There seems to be a distinct lack of affordable instrumentation in this area.

DC Power and Energy Measurement Meters – Pt 1 - [Link]



 
 
 

 

 

 

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