The 6502 chip explained down to the silicon

The 6502 CPU’s overflow flag explained at the silicon level  In this article, I show how overflow is computed in the 6502 microprocessor at the transistor and silicon level. I’ve discussed the mathematics of the 6502 overflow flag earlier and thought it would be interesting to look at the actual chip-level implementation. Even though the …

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Make a Variable Resistor boxes with 1 Million Settings

College physics lab we got to use these variable resistance ‘boxes’. They had two inputs and six dials, and could generate one million different resistances across the two inputs. I knew I had to have one, and why not make it myself? This tutorial demonstrates how to build one for yourself for pretty cheap. Materials: …

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FidoCadJ – Simple and intuitive 2D vector drawing for electronics and not only

Description A multiplatform vector drawing program with a complete library of electronic symbols. Schematics and drawings are stored in a very compact text format. There is no netlist concept behind the drawings (so no simulation here, sorry!) but this allows a great graphical flexibility and ease of use, making FidoCadJ the perfect tool for exchange …

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EERAM MEMORY SOLUTIONS REDUCE MEMORY COSTS AND RETAIN DATA AT POWER LOSS

Microchip announces a new family of Serial Peripheral Interface (SPI) EERAM memory products that offers system designers up to 25 percent cost savings over the current serial Non-Volatile RAM (NVRAM) alternatives. The family introduces four reliable SPI densities to Microchip’s EERAM portfolio, ranging from 64 Kb up to 1 Mb. High-density SPI EERAMs up to 1 Mb …

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SMART MARBLES AND AI TO DETECT FLAWS IN PIPELINES

A small team of researchers led by Peter Baltus, professor of microelectronics at the department of Electrical Engineering at Eindhoven Institute of Technology, the Netherlands, has developed small circuit boards equipped with sensors that can easily fit into a small golf-sized ball. While moving inside a pipeline, these swarm of smart marbles or balls can detect any obstacles, damages …

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The Desktop Device – a Customizable Desktop Assistant

In this post, we will learn The-Desktop-Device-a-Customizable-Desktop-Assistant: The Desktop Device is a small personal desktop assistant that can display various information downloaded from the internet. This device was designed and built by me for the CRT 420 – Special Topics class at Berry College which is lead by Instructor Zane Cochran. This instructable will go …

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Make Pocket Sized IoT Weather Station Using D1 mini (ESP8266)

How to make small Weather Cube using the D1 mini(ESP8266) connected to your home WiFi, so you can see its output anywhere as long as you have Internet connection. Overall, this project is not very difficult to build and not too heavy with resources, so it will be perfect like your first IoT project. Steps …

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