https://www.hackster.io/FoxyLab/arduino-nano-as-cp-m-compatible-computer-c09d4e?use_route=project cpm4nano – CP/M-compatible computer based on Arduino Nano. This looks interesting but maybe not very practical. I remember using and CP/M in early 1980s and even remember writing some code to it. →
https://opensource.com/article/18/8/top-10-raspberry-pi-blogs-follow There are plenty of great Raspberry Pi fan sites, tutorials, repositories, YouTube channels, and other resources on the web. This article lists 10 worth to check out Raspberry Pi blogs. →
This is a teardown of Behringer B208D active PA speaker. Inside Here is input pre-amplifier Look inside power electronics metal box Inside here is swich mode power supply (mains to around +-27V) and amplifier board. Amplifier board has 160W class D amplifier chip (below board and possibly broken) for driving low frequency speaker element, 40W →
https://www.edn.com/design/analog/4461000/A-technical-performance-based-view-of-opto-isolators-and-digital-isolators Galvanic isolators are devices that couple an electrical data or control signal across an insulation barrier without any flow of current through it, thereby enabling signals to be transferred while blocking noise. The insulation barrier also safeguards equipment and human operators from high voltages. The earliest isolators were optically coupled devices, also called opto-isolators →
http://www.oulu.fi/university/node/54247 IRC turns 30! This Finnish invention was revolutionary and changed lives. And it lives on. IRC (Internet Relay Chat) was born at the Department of Information Processing Science of the University of Oulu 30 years ago. Jarkko Oikarinen developed the internet chat system back in 1988. →
https://opensource.com/article/17/9/messy-sensor-data This tutorial explains how to use Pandas and Python to work with messy data. If you have never used Pandas before and know the basics of Python, this tutorial is for you. This tutorial shows how to clean up messy data with Python and Pandas in several ways, such as: reading a CSV file →
Managing energy demand spikes with seasonal forecasts of heatwaves and cold spells https://horizon-magazine.eu/article/managing-energy-demand-spikes-seasonal-forecasts-heatwaves-and-cold-spells_en.html The impact of heavy droughts, heatwaves and cold spells on energy demand and supplies would be lessened with seasonal climate forecasts that allow energy companies to better predict spikes in usage ahead of time, researchers say. Researchers already have the ability to →
http://www.iflscience.com/health-and-medicine/scientists-have-successfully-reversed-the-aging-of-human-cells-in-the-lab/ This looks interesting: The researchers were able to reverse the aging process of some old human cells by delivering a specific molecule to their mitochondria, the structures within cells where energy is produced. This approach stops the cells from becoming senescent, a point at which they can no longer duplicate. Some researchers believe that →
https://www.boredpanda.com/art-comics-about-artists/ All artists have a lot in common. To celebrate all the artists out there, Bored Panda has put together a list of hilarious comics that maybe only artists will understand. Or maybe you can also find something funny in them also? Maybe computer or electronics expert could use this same reasoning…. →
https://blog.adafruit.com/2018/08/15/circuitpython-on-raspberry-pi-updated-guides-for-ads1x15-bme680-mcp4725-tsl2561-tsl2591/ It’s CircuitPython on Raspberry Pi! Wire up your favorite sensors and use the same CircuitPython code you’ve been using with microcontrollers right on your Raspberry Pi! Adafruit provides many projects, libraries and example code for CircuitPython on microcontrollers. Python is pretty easy to get it working with micro-computers like Raspberry Pi or other ‘Linux →