Arduino News

CPU BUILT FROM DISCRETE TRANSISTORS

CPU BUILT FROM DISCRETE TRANSISTORS

We all know, at least intellectually, that our computers are all built with lots of tiny transistors. But beyond that it’s a little hard to describe. They’re printed on a silicon wafer somehow, and since any sufficiently advanced technology is indistinguishable from magic, they miraculously create a large part of modern society. Even most computers …

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TURING COMPLETE PROGRAMMING ON ARM WITH TWO INSTRUCTIONS

TURING COMPLETE PROGRAMMING ON ARM WITH TWO INSTRUCTIONS

There are many questions that can be asked for software projects, with most of these questions starting with β€˜Why…?’. This is true for the challenge of proving that cascading stylesheets are Turing-complete, or that you don’t need all those fancy ISA bits of an ARM processors when you already got theΒ LDMΒ andΒ STMΒ commands in the 32-bit ISA. …

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SIMPLE STM32 FREQUENCY METER HANDLES UP TO 30MHZ WITH EASE

SIMPLE STM32 FREQUENCY METER HANDLES UP TO 30MHZ WITH EASE

[mircemk] had previously built a frequency counter using an Arduino, with a useful range up to 6 MHz. Now, they’ve implemented a new design on a far more powerful STM32 chip that boosts the measurement rangeΒ up to a full 30 MHz.Β That makes it a perfect tool for working with radios in the HF range. The …

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Arduino GIGA Display Shield Has Microphone, IMU and Supports Multitouch

Good news for users of theΒ The Arduino GIGA R1 WiFiΒ board: you can now add a nice touch display to your board with minimum effort thanks to the brand-new Arduino GIGA Display Shield. It provides a 3.97” RGB touch screen with 480 Γ— 800 pixels and capable of producing 16.7 million colors. The touch screen is …

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HACKADAY PRIZE 2023 ABUSE A REFERENCE CHIP FOR A CHEAP INSTRUMENT

HACKADAY PRIZE 2023: ABUSE A REFERENCE CHIP FOR A CHEAP INSTRUMENT

A Rogowski coil is a device for measuring AC current that differs from a conventional current transformer in that it has no need to encircle the conductor whose current it measures. They’re by no means cheap though, so over time we’ve seen some interesting variations on making one without the pain in the wallet. We …

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