Yonggang Huang who together with Professor John Rogers led the project explained “We designed this device to monitor human health 24/7, but without interfering with a person’s daily activity, what’s important about this device is it is wirelessly powered and can send high quality data about the human body to a computer, in real time”. In a side by side comparison with conventional EKG and EEG monitor skin probes they found the wireless patch performed equally well but was significantly more comfortable and less invasive for patients. In addition to monitoring health and fitness data the sensors could also prove useful in identifying body movements characteristic of the early stages of neurological disorders such as Parkinson’s.
“The application of stretchable electronics to medicine has a lot of potential,” Huang said. “If we can continuously monitor our health with a comfortable, small device that attaches to our skin, it could be possible to catch health conditions before experiencing pain, discomfort and illness.”
Photo by John A. Rogers
Smart Band-Aid Wirelessly Monitors Health - [Link]
The electrolyte is also modified with bio-organic nanodots made from peptide molecules. The new battery technology came about as a result of crossover research into Alzheimer’s disease at Tel Aviv University. The work identified organic peptides (amino acids) which are now being used in StoreDot’s bio-organic battery. The nanodots are made from a range of naturally occurring environmentally-friendly bio-organic raw materials and employ a basic biological mechanism of self-assembly, making them cheap to manufacture.
A conventional micro USB connector would not be able to handle the 180 A necessary for a 30 second recharge of a typical cell phone battery. These sort of charge times would remove a significant hurdle in the development of electric vehicles if the technology is transferable. The design is still at its prototype phase; the developers anticipate the final design of the battery and its charger unit will see a significant reduction in size.
Bio-Battery Recharges in 30 Seconds - [Link]
Marcus Linderoth built a clock using a TI MSP430g2553 microcontroller and a HPDL-1414 display, that is available at Github:
After having ported Contiki to the Launchpad, I was eager on doing something with it. I built this simple clock with a vintage HPDL-1414 “smart four-character 16-segment alphanumeric” display and a msp430g2553.
Clock with retro display - [Link]
New antenna 2J620P will provide you a high quality GSM and GPS signal at once, moreover with a very simple assembly.
Tracking of vehicles or goods is still more used what naturally results into a requirement for a suitable antenna. One of them can be the 2J620P. It offers a very simple and elegant solution, as in fact it is “2 in 1” – two antennas in one enclosure, each with a separate RG174 cable and SMA connector. Assembly is absolutely simple – by means of included double-sided foam pad. Also supplied is even a small towel filled by isopropanol for cleaning of a place of assembly as well as antenna itself.
2J620P has a 2.14 dBi gain for GSM and 26-28 dB for GPS. The GPS portion is equipped by an active amplifier, that´s why requires 2.7-5.5V/15-25 mA power supply. In many applications can be also advantageous a flat shape without any nibs.
Detailed description of the antenna can be found in the 2J620P datasheet.
2J620P antenna – GSM and GPS under one roof - [Link]
hardwarehank @ instructables.com writes:
The Atmel ATTiny85 chip is an 8-pin MCU that is totally awesome. If you’ve been programming with the bigger boys (the ATMega series), these are a nice adventure – you’re rather limited in the number of output pins, but a creative design gives us a lot of flexibility in a very small package.
You’ve seen them – those “Apple computers.” Probably in the hands of some Hipster in Portland, while riding his fixie and wearing those thick framed glasses. That pulsating light when Apple laptops are asleep is so … sooooothing. You just want to go to sleep watching it. You know you do.
Today, we’re going to replicate that using our ATTiny85. It’s really easy, and most of it can be implemented in hardware instead of code (!!!).
Apple-style LED pulsing using a $1.30 MCU - [Link]
The MAX31629 I2C digital thermometer and real-time clock (RTC) integrates the critical functions of a real-time clock and a temperature monitor in a small-outline 8-pin TDFN package. Communication to the device is accomplished through an I2C interface. The wide power-supply range and minimal power requirement of the device allow for accurate time/temperature measurements in battery-powered applications. The digital thermometer provides 9-bit to 12-bit temperature readings that indicate the temperature of the device.
MAX31629 – I2C Digital Thermometer and Real-Time Clock - [Link]
hpb @ instructable writes:
I was looking for a dual voltage power supply initially to power an old HDD with 12V and 5V. I wanted to build a home server based on the Raspberry Pi. I later realized that I had a newer hard-drive that needed only 5V. By then I had already designed and built this one. This power supply has a typical efficiency of 85%+ under real-world conditions and is based on TI’s TPS54383 DC-DC converter chip which operates at 300 KHz. A 600 KHz version is also available and is a drop-in replacement for TPS54383.
High efficiency Dual Voltage 3A power supply - [Link]
xlisus @ instructables.com writes:
Choose the hue of light that makes you feel more comfortable.
Simple bluetooth remote control from which you can modify lighting from your mobile device or tablet.
- You have two separate RGB channels where you can get different colors per channel.
- Control adjustable intensity.
- Do it yourself .
- Thanks to the arduino platform in minutes you ‘ll Omniblug armed and ready for use.
Discover all the features provided. Is very easy install this small device.
Android Bluetooth Control Led RGB - [Link]
To satisfy electronic DIY hobbyists, ICStation has developed MAX7219 Dot Matrix Module. It uses the Max7219 chip which do a great job on saving of MCU I/O. It can not only control each point individually, but also can be extended without limitation to meet your requirements on LED Sign, Team Logo and so on.
What’s more, it’s controlled by the STM8S003F3 MCU with 1K data storge space which is low cost, low power consumption, very powerful.
DIY LED Sign with MAX7219 Dot Matrix Module - [Link]
nevdull @ instructables.com writes:
Tactile switches (a specific type of momentary switch) are everywhere and they are especially popular on DIY electronics and microcontroller boards because they are well suited to act as a boot option or reset switch. Particularly, momentary switches are switches that don’t save their state when you depress the switch. That is, when you push the switch (and while you have the switch depressed) the circuit is ON, but once you let off the switch it reverts back to OFF.
Use a Momentary or Tactile Switch as a Pushbutton Switch - [Link]