TPS65135 – Single-Inductor, Multiple-Output (SIMO) Regulator

The TPS65135 is a high-efficient, single-inductor, dual-output converter. Due to its single-inductor multiple-output (SIMO) technology, the converter uses a minimum of external components. The device operates with a buck-boost topology and generates a positive and a negative output voltage above or below the input voltage rail. The SIMO technology enables excellent line and load regulation required to avoid disturbance of a mobile phone display as a result of input voltage variations that occur during transmit periods. The device can also be used as a standard ±supply as long as the output current mismatch between the rails is smaller than 50 percent.

TPS65135 – Single-Inductor, Multiple-Output (SIMO) Regulator – [Link]

The Ard-Vark – control devices using iPhone or Android

The Ard-Vark is a basic electronics box that can be remotely controlled by an app on your iPhone, iPad or Android phone. It is Arduino compatible. Have you ever wanted to build a project that needed electronics but you didn’t know how to start? Would you like to add motion to one of your creations, and be able to control it with your phone or tablet and not have to learn electronics, soldering, programming and a few hundred other things? Then the Ard-Vark is for you.

The Ard-Vark – control devices using iPhone or Android – [Link]

Samsung introduce YOUM unbreakable Flexible AMOLED Display

Samsung describe YOUM as thinner lighter and unbreakable! The flexible AMOLED features a TFT Film, Organic Layer Encap (Film) and a Polariser. Samsung Mobile display don´t use a glass substrat they use a special plastic material to reach the high resolution and the bending property. Samsung is ready to mass produce flexible AMOLEDs in Q2 2012!

Samsung introduce YOUM unbreakable Flexible AMOLED Display – [Link]


LadyAda some time ago build a low-cost AVR ISP. In μ there was a further development of the project under the name “AVR ISP Stick” or “People’s Programmer” I take up the project and develop it further with the permission of Ada.

AVR ISP Stick – [Link]

Migrate to a new type of a SIM card connector Attend

New version of Attend connectors for SIM cards replaces the current one. To make it to you easier, we will keep in stock both types for some time.

It is the six-pin „push-push“ type 115A-ADA0-R02, which will replace the older almost identical type 115A-ADA0-R01. New type differs from the older one only in the width and a position of side mounting lugs, which are soldered on a PCB. Lugs of the new type are somewhat closer to the middle of the connector and they are narrower. The difference is probably best illustrated at the enclosed pictures. Both types also contain a switch for SIM card detection. Detailed information will provide you the 115A-ADA0-R02 and 115A-ADA0-R01 datasheets.

Migrate to a new type of a SIM card connector Attend – [Link]

Air Quality Egg

Air Quality Egg by @EdBorden — Kickstarter – [via]

The Air Quality Egg is a sensor system designed to allow anyone to collect very high resolution readings of NO2 and CO concentrations outside of their home. These two gases are the most indicative elements related to urban air pollution that are sense-able by inexpensive, DIY sensors.

Air Quality Egg – [Link]

AVR Articles

Four Walled Cubicle – AVR Articles. Dean writes – [via]

Over the years I’ve written a few fairly lengthy tutorials relating to AVRs. Originally, I posted these over on the AVRFreak’s Tutorials forums, but after many requests for PDF versions and after becomming frustrated at the lack of typesetting expressiveness given in the forum software, I converted over the text into LaTeX.

Now the tutorials are available in PDF form, and can be freely redistributed under an MIT license. I’ve even put up a public mirror of the tutorial LaTeX source SVN repository, so that others can fork off and examine past revisions of the files as I update them in the future.

AVR Articles – [Link]

Arduino based swim timer for night swimmers

swim timer for night swimmers @ DougsDIY – [via]

swim with a triathlete group in an outdoor pool at 6AM three days a week. For half the year I can see stars when I start swimming. What I can’t see in the dark is the analog clock to check my pace on 100 meter laps.

To solve this problem I designed and built a portable digital timer with LED display. The 4-digit 7-segment display is large enough to see from 10 feet away so I can read it without stopping. The timer is encased in a transparent and waterproof polycarbonate tube so that I don’t have to worry about it getting wet or falling in the pool. In fact you can take it to the bottom of the pool and it won’t leak. Normally it just sits on the edge of the pool where I can see it.

There are a variety of LCD swim timers available that are fine for day swimmers. This timer is for night swimmers.

Arduino based swim timer for night swimmers – [Link]