ePanorama.net

All about electronics and circuit design

USB cameras on Android 11 fix

Almost a year ago I wrote that USB cameras connected to Android 10 device do not work. This issue stopped me from using my USB endoscope. I tried different applications and nothing seemed to help. The Android version was updated to 11, but the problem seemed to stay. Not the problem has been solved. I

Friday Fun: USB is dangerous?

I saw an alarming sounding headline with worrying picture: Man Goes Up In Flames After Pulling Out USB Stick Without Safely Removing It First https://waterfordwhispersnews.com/2021/05/06/man-goes-up-in-flames-after-pulling-out-usb-stick-without-safely-removing-it-fir “Authorities suspect the cause of the fire can be traced to Murphy previously pulling a USB stick out of his computer without safely removing it beforehand.” This was clearly parody

2-nanometer (nm) node chip

IBM has become the first in the world to introduce a 2-nanometer (nm) node chip. It claims will improve performance by 45% using the same amount of power. IBM Introduces the World’s First 2-nm Node Chip https://spectrum.ieee.org/nanoclast/semiconductors/nanotechnology/ibm-introduces-the-worlds-first-2nm-node-chip IBM has become the first in the world to introduce a 2-nanometer (nm) node chip. IBM claims this

WiFi location

In three years or so, the Wi-Fi specification is scheduled to get an upgrade that will turn wireless devices into sensors capable of gathering data about the people and objects bathed in their signals. In this WiFi is following the footsteps of Bluetooth that got location features already some years ago. “When 802.11bf will be

Ethernet over XLR wiring

I have written about running audio signals over CAT 5/6/7 wires normally designed to carry Ethernet traffic. But is is possible to run Ethernet over audio cabling terminated with XLR connectors? Gearspace discussion at topic “Ethernet over XLR – Can I do this ???” had following question: We recently moved into an old recording studio

Friday Fun: Speaker to mains power disaster adapters

This is an old recipe for a disaster from 1990′s. This converts NEMA mains connector to 1/4″ plug. Offers a nice set of possibilities for unexpected show disasters like electrocution or over kilowatt of constant 60 Hz bass line without an amplifier. It seems that some company really tried yo push this potentially extremely dangerous

XLR mic cable tester

I saw presentation of Sound Tools XLR Sniffer/Sender at https://www.ratsoundsales.com/mm5/merchant.mvc?Screen=PROD&Product_Code=soundtools-xlr-snifsend It was described: “Quickly troubleshoot faulty mic lines and cables with this set of remote end cable testers. The XLR Sniffers can also utilize phantom power to test snake lines and cables in live environments, making it simple to diagnose issues and get your show