The Massachusetts Institute of Technology (MIT) has discovered that pure crystalline carbon–graphene–sandwiched between two ferroelectric layers results in devices with built-in memory that operate in the terahertz range, potentially opening the door to next-generation applications: [via]
Terahertz Graphene Ferroelectrics Debut at MIT – [Link]
by Publitek European Editors
This article looks at the latest touchscreen sensor technologies and the wide range of interfaces that the different technologies use. It also evaluates the different approaches for interfacing such sensors for human interfaces from three, four and five wire to USB, covering sensors and interfaces from Atmel, 3M, IR Touch Systems, and NKK Switches. Resistive 4- and 5-wire touch sensors are the most popular and most common touchscreen technologies with about 75% market share, mainly due to their low costs and simple interface electronics. The high volume of these screens requires a low-cost reliable interface, often with a low-power element. This can be provided through a range of analog features combined with low-power modes for portable, battery-powered applications.
Evaluating Different Approaches for Interfacing Touchscreens - [Link]
Raul from Coding Laboratory has designed a DIY ECG project using an Arduino and Xoscillo:
To display the wave I am using XOSCILLO, a very cool and open source tool (which I wrote ) that converts your Arduino into an oscilloscope.
Minimal ECG using an Arduino and Xoscillo - [Link]
Seeedstudio has announced what may be the smallest Arduino compatible board yet. The BareDuino Nano was designed by 15 year old maker Niek Blankers from the Netherlands, and sports the same processing power as Arduino Uno in a 21×14 mm footprint and includes an FTDI programming interface and on-board voltage regulator. [via]
Seeedstudio BareDuino Nano — smallest Arduino yet - [Link]
This project details the design of a very low dropout adjustable power supply. A good power supply is essential to electronic projects, and being able to hook this up to a breadboard makes it very useful to hobbyists. It features a dropout of only 40mV – 400mV compared to 1.25V – 2.0V for a LM317 circuit. This means you can use a wider range of input/output voltages, including generating 3.3V from as low as 3.7V (such as 3 AA’s or a lithium ion battery)!
Low Dropout Adjustable Breadboard Power Supply - [Link]
NXP Semiconductors has announced a family of small-footprint wireless modules based on the ultra-low-power JN5168 microcontroller. Supporting multiple network stacks including ZigBee Home Automation, ZigBee Light Link, ZigBee Smart Energy, JenNet-IP and RF4CE, the JN5168 wireless modules feature footprints as small as 16 x 21 mm and very low power consumption in transmit and receive modes.
All modules have 256 KB flash memory, 32 KB RAM and 4 KB EEPROM, as well as low-power sleep modes. An SPI interface allows external flash memory to be connected for applications that require over-the-air firmware updates, and all other main functions and I/Os of the chip, such as I²C, ADCs, UARTs and PWMs, are accessible. [via]
Low-power Wireless Modules Support Multiple Protocols - [Link]
86 participants saw the real demonstrations of fast 4D Systems displays programming live.
4D Systems displays are user-friendly so you don’t have to be an expert. You could learn more about them during SOS webinar, that was dedicated to 4D Systems displays. This webinar informed you about:
- advantages of modules and 4D Systems displays,
- development environment,
- unique development process.
Developers appreciated practical demonstrations of programming because it is better to see once than to hear 100 times. From among all participants who submitted short questionnaire, we have drawn a new owner of programming cable. ŠThe winner is Mr. Kamil Palčo from PALCO IT, s.r.o.
Congratulations to the winner. You already can register for next webinars which we prepare for you. More information about current webinars can be found at www.soselectronic.com/webinar.
You can watch the complete 4D systems presentation from the webinar online
Webinar 4D Systems impressed with practical demonstrations of programming – [Link]
The LT®8610 step-down regulator integrates key high performance features in one compact IC. It offers synchronous rectification, for efficiencies up to 96%. The low quiescent current of 2.5µA extends battery life and saves extra circuitry. High speed switching minimizes board space and helps avoid EMI problems. A low dropout of 200mV at 1A load allows wide VIN range. The LT8610 is a great choice for many step-down applications requiring high input voltages up to 42V and load currents up to 2.5A.
High Efficiency, Ultralow IQ, 42V, 2.5A Sync Buck Regulator - [Link]
soldersplash.co.uk have just built their first prototype of Wifi DipCortex. Which is a Cortex M3 LPC1347 + TI CC3000 WiFi radio in a tiny 40 Pin dip format for easy breadboarding or adding to your product.
WiFi is something we have wanted to do for a long time, but there are a lot of technical and regulatory challenges around it. If you’re running an OS on an embedded PC like the Raspberry PI, WiFi is simple, you buy a cheap dongle and the intelligence is in the driver.For a low power embedded project where you’re not running an OS it gets a lot harder and that means it’s expensive. So the only real option is to use a WiFi module and these are normally expensive.A few months ago, whilst designing the DipCortex, we identified a module that is low cost and comes with FCC, IC & ETSI certification, saving huge costs assocaited with getting radio equipment through testing. The goal was to squeeze this module, the TI CC3000MOD, on to a board the same size as the DipCortex which was a massive challenge, as the DipCortex is sized to replace a 40pin DIP package.
WiFi DipCortex – An embedded WiFi module to power your next product - [Link]