Femtosecond Electronics With Plasmonic Hot Electron Nano-emitters
Science

Femtosecond Electronics With Plasmonic Hot Electron Nano-emitters

A team led by the Technical University of Munich (TUM) physicists Alexander Holleitner and Reinhard Kienberger has found success for the first time in generating ultrashort electric pulses on a chip. They made this possible by using asymmetric metal antennas only a few nanometers in...

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3D Printed Objects that can connect to Wi-Fi without any Electronics
IoT

3D Printed Objects that can connect to Wi-Fi without any Electronics

The world has seen an exponential growth of the Internet of things, where things are becoming connected. Every physical object is giving the chance to be connected to the internet and emit some data about itself with just the addition of some chips, and some form of wireless interface....

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Low-profile antennas can be mounted on metal surfaces
RF

Low-profile antennas can be mounted on metal surfaces

Julien Happich @ eedesignnewseurope.com discuss about a new low-profile 2.4GHz antenna that can be mounted on metal surfaces: Antenova is shipping its first 2.4GHz antenna from its new Reflector series. The Zenon has been engineered to operate without de-tuning on metal surfaces or...

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10km ESP32 WiFi Using Directional Antenna
DIYIoT

10km ESP32 WiFi Using Directional Antenna

[Jeija] was playing with some ESP32s and in true hacker fashion, he wondered how far he could pull them apart and still get data flowing. His video answer to that question covers the Friis equation and has a lot of good examples of using the equation, decibels, and even a practical...

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PureModules, IoT Building Blocks
IoTProducts

PureModules, IoT Building Blocks

New range of building blocks for IoT development are just out there! Just like LEGO, PUREmodules by Pure Engineering are the building blocks for IoT connected smart sensors where there is no need to solder, using breadboard or wires. It’s all done just by snapping the modules together...

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Badgerboard, LoRa Future IoT Development Board
ArduinoIoTProducts

Badgerboard, LoRa Future IoT Development Board

The LoRa Alliance™ is an open, non-profit association of members who believe that the Internet of Things era is now, its LoRaWAN is a Low Power Wide Area Network with features that support low-cost, mobile, and secure bidirectional communication for Internet of Things (IoT),...

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Build Your Own Cheap Antenna Analyser
ArduinoMcu

Build Your Own Cheap Antenna Analyser

Ham radio is the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, etc. Developing a ham radio project may requires using an antenna analyser, a device that is used for measuring input frequency and...

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External antenna modifications for the Raspberry Pi 3
Raspberry Pi

External antenna modifications for the Raspberry Pi 3

In this post dorkbotpdx.org show us a couple of different ways that an external antenna can be added to the Raspberry Pi 3. It's not clear why an external antenna is not an option for the Pi 3, there are a number of possible reasons and I don't presume to know the Raspberry Pi...

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