All about electronics and circuit design

New Armv9 CPU core

ARM processors touch 70% of the global population. From the edge to the cloud, Arm is on track to touch 100 percent of the world’s shared data. Arm has announced Armv9, its first new ARM architecture in a decade. Arm’s solution to the future needs of AI, security and specialized computing is v9 released at

Questionable breaker locating methods

There are many cases where there is need to trace which electrical outlet is connected to which fuse/breaker. Anyone doing renovation is familiar with both residential and commercial buildings where the circuits weren’t identified properly. New buildings may label circuits very well, but older structures aren’t nearly as accurate or detailed. There’s a big difference

Passive summing mixer

For a passive summing mixer is a circuit to combine two audio signals to one signal. Passive summing works generally ok, both with unbalanced and balanced circuits if all connected circuits are same type (mixed balaced and unbalanced is mixed business if it works as wanted or not). When the devices connected to all inputs

Android WebView problems

A number of Android apps started to crash, including Gmal, for me on my Android phone last evening and this morning. Tried the normal reboot, update apps and system update. Those did not help. While searching for information if there is a known issue I found this: Android apps like Gmail are crashing and ‘WebView’

Cable tester NF-8209 tested

NOYAFA NF-8209 Network Cable Tester is used to measure cable continuity. It enables the measurement of connection errors in UTP / STP twisted pairs. The device is manufactured by SHENZHEN NOYAFA TECHNOLOGY CO., LTD and sold with several different brand names. NF-8209 Main features: 1. Two scan modes selectable: AC filter & Non AC filter.

The Art of Code

WOW, this one is amazing! Rockstar developer presentation!! Join Dylan Beattie – programmer, musician, and creator of the Rockstar programming language – for an entertaining look at the art of code. We’ll look at the origins of programming as an art form, from Conway’s Game of Life to the 1970s demoscene and the earliest Obfuscated

Cassette Tape, it’s inventor and DIY projects

The Compact Cassette, also commonly called the tape cassette,[2] cassette tape, audio cassette, or simply tape or cassette, is an analog magnetic tape recording format for audio recording and playback. It was developed by the Dutch company Royal Philips in Hasselt, Belgium, by Lou Ottens and his team. It’s with sadness that we note the

DMX 512 control board DMX 192 repair

DMX stands for Digital Multiplex DMX512 (Digital Multiplex) is a standard for digital communication networks that are commonly used to control stage lighting and effects. DMX can now be used to control almost anything, reflecting its popularity in theatres and venues. I have some DMX-512 controlled lights and also built some DMX-512 hardware myself. I

Pi day

Today (March 14th, 2021), We are celebrating Pi Day, Pi (π) is the representation of the ratio of any circle’s circumference to its diameter, Pi day is celebrated anually on March 14th since the first three significant digits of π are 3, 1, and, 4. The pandemic hasn’t stopped Pi Day celebrations on 3/14, but