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DSDoogal Simpsondoogal.devJul 26 · 5 min read

How USB-C Power Negotiation Works: Inside the CC Pin

TL;DR: USB-C devices don't melt when connected to high-wattage chargers because of dynamic negotiation over a dedicated Configuration Channel (CC) pin. Using the USB Power Delivery (PD) protocol, the

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MWMaggie‌ Wanganypcba.hashnode.devJul 24 · 5 min read

Why Your Hardware Startup Shouldn't Start with the Biggest PCBA Factory

There's a moment in every hardware startup's journey where the founder makes a decision that seems obvious but often backfires. It usually sounds like this: "We want to work with the biggest, most est

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MWMaggie‌ Wanganypcba.hashnode.devJul 21 · 4 min read

AI Is Eating the World, But Who's Building the Boards That Feed It?

We're in the middle of an AI hardware gold rush. Nvidia can't make GPUs fast enough. Every startup with a .ai domain is raising millions. Governments are throwing subsidies at semiconductor fabs like

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DPDmytro Padunlowridekeys.hashnode.devJul 19 · 6 min read

LowrideKeys

Keyboard? LowrideKeys? Well… let’s get started! The drive to build something of our own is probably what keeps our small team moving. At some point, you simply sit down and start creating something th

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DKDhananjay kumar Sethdhananjaykuseth.hashnode.devJul 14 · 4 min read

I Built 4 Interactive Engineering Tools You Can Run in Your Browser

Most engineering concepts live in textbooks and MATLAB scripts — you read about a Fourier transform, a PID loop, or a constellation diagram, but you rarely get to touch one. I'm a game developer by da

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LLlarry lieveryday-lighting-lab.hashnode.devJul 14 · 8 min read

How Rechargeable Picture Lights Combine Battery Power, RGB LEDs, and Modular Mounting

Wireless lighting solves one obvious problem: cables. But removing the cable creates a new set of engineering challenges. A cordless picture light still needs sufficient battery capacity, an accessibl

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Ccircuitrockscircuitrocks.hashnode.devJul 6 · 2 min read

Build a 2 Hz to 33.5 MHz Signal Generator on One AVR EB Chip

Want a bench clock source that can hit almost any frequency without keeping a drawer full of crystal oscillators? Here is the shopping list for David Johnson-Davies' Digital Signal Generator, and it i

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Ccircuitrockscircuitrocks.hashnode.devJul 6 · 2 min read

Build a 2 Hz to 33.5 MHz Signal Generator on One AVR EB Chip

Want a bench clock source that can hit almost any frequency without keeping a drawer full of crystal oscillators? Here is the shopping list for David Johnson-Davies' Digital Signal Generator, and it i

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AGAbhipreya Ghoshwowcodeind.hashnode.devJul 1 · 6 min read

VIDYUT: A 210W MPPT Solar Charge Controller Built for Off-Grid IoT (And Why Most MPPT Boards Aren't)

The problem nobody talks about with off-grid IoT By 2034, the world is expected to have more than 40 billion connected IoT devices — up from roughly 17.7 billion in 2024. A huge chunk of that growth i

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AFAeon Flex / Splicer Scornchaincoder.hashnode.devJun 27 · 7 min read

I Mapped an Entire Building’s RF Footprint Without Walking Inside. Here’s How.

It started with a bet. A friend — let’s call him Marcus — works in physical security. He runs RF site surveys for corporate clients. The kind of work where you walk into a building with a spectrum ana

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#electronics

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Trending tags this week

How USB-C Power Negotiation Works: Inside the CC Pin

Why Your Hardware Startup Shouldn't Start with the Biggest PCBA Factory

AI Is Eating the World, But Who's Building the Boards That Feed It?

LowrideKeys

I Built 4 Interactive Engineering Tools You Can Run in Your Browser

How Rechargeable Picture Lights Combine Battery Power, RGB LEDs, and Modular Mounting

Build a 2 Hz to 33.5 MHz Signal Generator on One AVR EB Chip

Build a 2 Hz to 33.5 MHz Signal Generator on One AVR EB Chip

VIDYUT: A 210W MPPT Solar Charge Controller Built for Off-Grid IoT (And Why Most MPPT Boards Aren't)

I Mapped an Entire Building’s RF Footprint Without Walking Inside. Here’s How.