At a mere 2 square micrometers in size, this is the world's smallest QR code and it's 'smaller than most bacteria'

The QR code is so small, in fact, that it can "only be recognised with an electron microscope". As a result, the research ...
Hackaday

New Tool Makes 3D Printed PCBs, Fast

Getting PCBs made is often the key step in taking a dodgy lab experiment and turning it into a functional piece of equipment.
Hackaday

Sliderule Simulator Teaches You How To Do Calculations The Old Fashioned Way

Ever wanted to know how engineers made their calculations before digital calculators were on every workbench? [Richard ...

An 'electrical' circadian clock balances growth between shoots and roots

Plants don't just respond to light and water, they also run on an internal daily timekeeper known as the circadian clock. Researchers have now discovered that the plant circadian clock can regulate ...
Circuit Digest

DIY Raspberry Pi Pico Text-to-Speech Using Wit.ai

Type a sentence into the input bar at the top of the Serial Monitor and hit Enter to send it to the Wit.ai API. The console will log " Requesting TTS " followed by " Buffer ready, starting playback ," ...
Amazon S3 on MSN

Make a fence panel clock that stands out

Expert DIYer April Wilkerson crafts a distinctive fence panel clock that adds character to your walls.

Don't ask 'why?' but this tech tinker turned the audio jack on their PC into a power button. A kinda borked power button

The person in question is Adam Lee, better known by his YouTube channel name of mryeester, and his latest endeavour sounds simple in principle but is actually quite hard to do: powering on a PC using ...