Who have already ever lost data from any memory medium knows, that it is worth to use a more reliable solution. A relatively small price difference of an industrial memory card in comparison to a price of a common memory card is multiply compensated by a higher reliability. On the opposite side, any data loss or servicing are practically always substantially more expensive.
New APACER uSD cards meet in all paramaters demanding requirements for industrial usage. A wide temperature operating range, high write/read rates, built-in advanced error correction algorithm (ECC), low power consumption, support of SD and SPI mode and many other features designate these cards even for demanding industrial use. They are available in capacities from 4 to 16GB (MLC). 4GB and 8GB are available directly from our stock, other types incl. SLC ones upon request. Detailed information will provide you the APACER uSD datasheet as well as the APACER products overview.
Safety first! – APACER microSD - [Link]
Series 47000, designed as a direct replacement of classic transformers brings more than you might expect.
Myrra 47xxx SMPS overcome supersedes classic transformers by an overall efficiency, power as well as by a standby power consumption. With the same pinout as 1W EI30 transformers, it provides a 5W power, or up to 5,4W at some models. All this for the price comparable with a classic solution, but with smaller dimensions, without any additional components and without problems with cooling. Next to basic features represented to you in a separate article we bring you a more detailed description of particular versions.
47000 series power supplies feature a very low standby power consumption –only 200 mW or 300 mW respectively – at regulated types. With the 4000VAC isolation (input/output), they´re ready for a classs II – reinforced isolation . Operating ambient temperature is from -25°C to Ta, which can be found in a table at each type. To a simple usage also contributes a shortcut protection and a thermal shutdown with automatic recovery. More information will provide you the following tables and the Myrra 47000 datasheet.
Save energy and production costs with Myrra 47000 switch-mode power supplies - [Link]
To switch a few low voltage sources you can use high voltage switch with SNMP support or this small box and control it via USB
USB Relay Board – Switch devices using USB - [Link]
Circuit Lab HD is an electronic circuit analysis tool based on the modified node analysis method.
Circuit Lab HD – iPad App - [Link]
The following display features eight 7-segment displays arranged in two rows of four digits. The on-board MAX7219 driver enables you to easily add eight 7-segment LED displays to your project using only 3 I/O pins of microcontroller. The major advantage of using this board is the time-division multiplexing operations required for continuous refreshing of the display digits are performed by the MAX7219 chip, thereby keeping the microcontroller free for doing other pressing tasks. It is suitable for displaying two variable values simultaneously in a project, such as displaying temperature and humidity, or current and voltage, etc.
8-digit seven segment LED display with SPI interface – [Link]
After discovering how cool RGB LED strips are, I decided to make a bandwidth monitor for the Internet connection at our place. Since there are many users active on the same connection there’s bound to be conflicts where someone is gaming and another is downloading, causing the ping to fluctuate (even with QoS HTB-init set up).
Using RGB LED Strips to Monitor - [Link]
Electrical engineers of the University of Princeton are working on a cheap solar-powered charging system that can be printed on plastic and that transfers the produced electricity wirelessly. The solar cells are made from amorphous silicon (a-Si), a non-crystalline form of silicon. Crystalline silicon (c-Si) is much more efficient when it comes to converting sunlight into electricity but a-Si has the advantage that it can be processed at much lower temperatures (75 °C against 300 °C for c-Si), allowing it to be printed on plastic sheets.
The electric circuit is made out of the same material as the solar cells. And although a-Si has a lower electrical performance than c-Si, when it comes to producing cheap electricity-generating plastic sheet which can be put up anywhere, a-Si is best. By making the charging system available at a large scale, the Princeton engineers aim to have wireless electricity everywhere. [via]
Omnipresent Sun-Powered Wireless Charging Stations - [Link]
With their high-resolution touchscreens, ample computing power, WLAN support and telephone functions, Android smartphones and tablets are ideal for use as control centres in your own projects. However, up to now it has been rather difficult to connect them to external circuitry. Elektor’s AndroPod interface board, which adds a serial TTL port and an RS485 port to the picture, changes this situation. In this webinar Bernhard Wörndl-Aichriedler shows how easy it is to connect your own circuitry to an Android smartphone using the AndroPod interface.
AndroPod – Bridging Android and your electronics projects - [Link]
The enclosure is from Adafruit - about perfect, although it’s a pretty tight fit. The display is an OLED character display. (It’s a little quirky, and it draws more power than a regular LCD, but it’s really bright and clear.) The EM-406A GPS mounts on the top of the case. I drilled a small hole that shows the LED on the GPS module which lets me know when I have a fix. The IR detector is also on the top, so I can use a TV remote to set the parameters. The bottom has the on/off switch, (and now a piezo switch) and a slot that allows removal of the microSD card.
GPS Geiger Counter Data Logger - [Link]
The Approach used here is just an active Voltage Divider. The GND of the Output just has to be centered between the positive and the negative Supply. This can be achieved using a Power Opamp such as the L149 (4A) or the L165 (3A) or any
equivalent type beeing available at your local hardware store. The Schematics below shows how to wire it …
How to transform an Unipolar Power Supply into a Bipolar Power Supply - [Link]