Archive for May 2017

Turn Any Surface Into A Touch Screen

http://www.iflscience.com/technology/this-spray-can-turn-any-surface-into-a-touch-screen/ This looks interesting. The technology, called Electrick, was developed by scientists from Carnegie Mellon University in Pennsylvania, with the findings published in an open access paper. The spray consists of an electrically conductive carbon-based material. By applying electrodes to the object, and then measuring the voltage at different points, the position of a person’s finger can

Sinewave DC to AC inverter teardown

I have earlier posted DC to AC inverter teardown that showed wat was inside one cheap “modified sinewave” inverter. Now I do a tear-down to a more expensive “true sineware” inverter PI150S from Velleman. This inverter convers 12V DC to nice sinewave 230V 50Hz AC power  (up to 150W). View to front and back. This unit

Launching Open Hardware Satellites – Hackster’s Blog

https://blog.hackster.io/launching-open-hardware-satellites-93813a1fe842 Created almost twenty years ago the CubeSat standard has lowered the barrier to entry to the point where you can put your own satellite into orbit for not much more than the price of a high end car. The 10 cm × 10 cm × 10 cm cubes have become so common that you can buy

We may have accidentally formed a protective bubble around Earth | Popular Science

http://www.popsci.com/radio-wave-shield-space-weather?src=SOC&dom=fb This is interesting if true. This is not the first I have heard EM signals from earth affecting ionosphere.  When the Navy wants to send a message to an underwater submarine, it sometimes uses very low frequency (VLF) radio waves. Some end up in space and according to a new report, they may be forming a

SiFive Unveils the First RISC-V-Based Arduino

https://blog.hackster.io/sifive-unveils-the-first-risc-v-based-arduino-a4d07fe7f21f  “Arduino Cinque” is based on SiFive’s Freedom E310 — the industry’s first commercially available RISC-V core — running at 320MHz. Aside from the SoC, an onboard ESP32 chip provides support for 2.4GHz Wi-Fi and Bluetooth.

Connected lighting may be the IoT killer app | EDN

http://www.edn.com/electronics-blogs/eye-on-iot-/4458410/Connected-lighting-may-be-the-IoT-killer-app?utm_content=buffer341aa&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer The business model for adding IoT connectivity to lighting promises positive return on investment. The push of government-mandated energy reductions is one factor. It is easier, he noted to meet regulatory standards if you can control the light bulb itself. Shutting down lights when rooms (or even sidewalks) are empty or remotely via phone

Enhancing drivers’ eyes, senses, and reflexes with creative electronics | EDN

http://www.edn.com/design/analog/4458402/Enhancing-drivers-eyes–senses-and-reflexes-with-creative-electronics?utm_content=buffer95f2f&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer Although we are not yet technically ready for autonomous vehicles (see this IEEE article: Hit the Brakes—We’re Not Ready for Autonomous Vehicles—I strongly agree), what we can have in the near-term is safety electronics in automobiles. Radar, LIDAR, and camera vision integration are becoming more affordable in modern automobiles.