Printable Chipless RFID Tags

ChiplessBarcodes

A new generation of chipless RFID tags could soon be set to replace standard product barcodes. A research team at Monash University led by Dr Nemai Karmakar, from the Department of Electrical and Computer Systems Engineering, have been developing chipless radio frequency identification (RFID) tags that can be printed directly onto products and packaging – including postal items, drugs and books – potentially making this new technology cheaper, smaller and faster than any other tracking system on the market.

The team have succeeded in producing fully printable tags for products made of metal and containing liquids including water bottles and soft-drinks cans. Until now, this hasn’t been possible because metal and liquids interfere with the technology. The tag can be printed using an inkjet printer and read when they are attached to reflective surfaces such as metal cans and water bottles.

Printable Chipless RFID Tags – [Link]

Micrel’s High Voltage Synchronous Buck Regulator Family with FETZilla Technology Stays Cool

MIC28511

Micrel Inc. introduced the MIC28511/12/13, a family of pin-compatible high voltage (HV) synchronous step-down switching regulators with integrated power switches capable of providing up to 4 A (MIC28513) output current and a wide input supply range from 4.6 V to 70 V. The MIC28511/12/13 are offered in both Hyper Speed Control™ and HyperLight Load® architectures, which allow for high VIN (low VOUT) operation and ultra-fast transient response while reducing the required output capacitance and providing very good light-load efficiency. These products can be used in wide variety applications including industrial control, power metering, telecom, and medical equipment. The MIC28511/12/13 are currently available in volume quantities with 1,000 quantity pricing starting at $1.49/$1.85/$1.42 respectively.

Micrel’s High Voltage Synchronous Buck Regulator Family with FETZilla Technology Stays Cool – [Link]

World’s first light-activated, molecule-sized switch gets turned on

molecule-size-switch

by Colin Jeffrey @ gizmag.com:

In the pursuit of ever-shrinking circuitry for nanotechnology electronics, increasingly smaller devices and components are being developed. Now researchers at the University of Konstanz and the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) claim to have micro-miniaturized the humble electrical switch all the way down to molecule size and proven its operation for the very first time. Unable to flick such a tiny switch mechanically, however, the researchers instead used light to turn it on.

World’s first light-activated, molecule-sized switch gets turned on – [Link]

Arduino Bike Speedometer

FTAIXO8H3NN9MP6.MEDIUM

by amandaghassaei instructables.com:

Monitor your road speed using the Arduino. This project uses a magnetic switch (also called a reed switch) to measure the speed of one of the bike’s wheels. The Arduino calculates the mph, and send this information out to the LCD screen on the handlebars as you ride. It is compatible with any kind of bike/wheel, simply enter the radius of the wheel in the firmware to calibrate the device for your setup.

Arduino Bike Speedometer – [Link]

The WiPy: The Internet of Things Taken to the Next Level

cf71e8a25009102ae51042014f985425_original-550x286

The IoT development platform that runs Python in real time, and features the perfect blend of power, friendliness and flexibility.

A small, super low power, inexpensive, and 100% Python programmable IoT development board. The WiPy takes the wireless freedom of WiFi and combines it with the power, flexibility, and ease of use of Python. We designed the WiPy from the ground up, with one goal in mind: “Let’s make IoT development fun both for beginners and professionals”.

  • Inexpensive, small and breadboard friendly.
  • Ultra low power (850uA with the WiFi connection active)
  • 100% PYTHON PROGRAMMABLE.
  • Lots of GPIOs, interfaces and peripherals.
  • Powerful CPU and state of the art WiFi radio.

The WiPy: The Internet of Things Taken to the Next Level – [Link]

UDOO Neo = Raspberry Pi + Arduino + Wi-Fi + BT 4.0 + Sensors

UDOO_NEO

Wireless, Credit-Card sized, Android + Linux + Arduino™, Embedded Sensors, starting from $49. What else?

UDOO Neo embodies a new concept: a single board computer suitable for the Post-PC era:

  • Like a Raspberry Pi, you can program it in any language and run a full Linux environment with graphic interfaces.
  • You get all the simplicity of an Arduino-compatible board, thanks to the Cortex-M4 and the Arduino UNO pinout layout, with the possibility of adding most Arduino™ shields, actuators and sensors, both analog and digital.
  • An incredible, smoothly-running Android 4.4.3, it gives you the possibility to build new Android-based smart devices.
  • You get a wireless module: Wi-Fi 802.11 b/g/n + BT 4.0 (Classic Bluetooth and Bluetooth Low Energy), because we hate cables.
  • 9-axis motion sensors are embedded, to build your perfect drone/robot/3D printers/whatever or create new kinds of interactions with the real world.
  • Open-source hardware: because we love to let you hack things or create new devices from scratch!
  • Starting from $49!

UDOO Neo = Raspberry Pi + Arduino + Wi-Fi + BT 4.0 + Sensors – [Link]

DIY FPGA-based HDMI ambient lighting

2015-04-21 21.57.31

by  Scarab Hardware :

Ambient lighting is a technique that creates light effects around the television that correspond to the video content. It has been pioneered by Philips under the brand Ambilight. In this project we will create a basic FPGA-based ambient lighting system that reads the video signal over HDMI. This means we are not limited to computer output. We can use it together with DVD players, video game consoles, etc.

DIY FPGA-based HDMI ambient lighting – [Link]

Pocket USB-powered power supply for the hobbyist

USB_PSU

Always handy small but versatile power supply for everyday work with low-power electronic projects

Presenting USBminiPower – the pocket power supply powered from a standard USB port on your computer.

The adjustable power supply is an absolutely vital piece of equipment for any electronics engineer or hobbyist. However in the vast majority of cases the needs presented towards a lab power supply are quite relaxed and usually within the low voltage range. With the modern component base the current consumption is usually also very low, and in a number of cases a large and fancy (and of course expensive) lab power supply could just be an overkill purchase for many users.

Pocket USB-powered power supply for the hobbyist – [Link]

0-10V Voltage Monitor

0-10V_Monitor_PIC

0-10V Volt monitor project has been designed around LM3914 IC, It is an easy and less expensive project which instantly visualizes voltage level. The project is based on the popular LM3194 IC from Texas instruments. Handy 0-10V DC Voltmeter can be used as a voltage tester.

The LM3914 senses the voltage level at the input pin and drives the 10 light emitting diodes based on the voltage detected on input connector. Circuit works on 12V DC. J1 Jumper is used to select the DOT mode or bar graph mode.

0-10V Voltage Monitor – [Link]