Before LEDs became cheap enough to be ubiquitous, flip-card displays were about the only way to get a digital clock. These entirely electromechanical devices had their own charm, and they …read more (https://hackaday.com/2021/10/02/steppers-and-esp32-make-this-retro-modern-flip-clock-tick/)

Mini Laser Engraver Could Carve Out a Place on Your Desk
https://hackaday.com/2021/10/02/mini-laser-engraver-could-carve-out-a-place-on-your-desk/

Got a couple of old DVD-RW drives lying around, just collecting dust? Of course you do. If not, you likely know where to find a pair so you can build …read more (https://hackaday.com/2021/10/02/mini-laser-engraver-could-carve-out-a-place-on-your-desk/)

Some Pleasing Experiments in 8-Bit Video Cards
https://hackaday.com/2021/10/03/some-pleasing-experiments-in-8-bit-video-cards/

These days, supply chain factors and high demand have made it incredibly difficult to lay one’s hands on a GPU. However, if you’re into older computers, you might find it …read more (https://hackaday.com/2021/10/03/some-pleasing-experiments-in-8-bit-video-cards/)

What Goes Into a High Voltage Diode?
https://hackaday.com/2021/10/03/what-goes-into-a-high-voltage-diode/

When we use an electronic component, we have some idea of what goes on inside it. We know that inside a transistor there’s a little piece of semiconductor with a …read more (https://hackaday.com/2021/10/03/what-goes-into-a-high-voltage-diode/)

Supercapacitor E-Bike With DIY Motor
https://hackaday.com/2021/10/03/supercapacitor-e-bike-with-diy-motor/

Supercapacitor technology often looks like a revolutionary energy storage technology on the surface, but the actual performance numbers can be rather uninspiring. However, for rapid and repeated charge and discharge …read more (https://hackaday.com/2021/10/03/supercapacitor-e-bike-with-diy-motor/)

Forget Digital Computing, You Need An Analog Computer
https://hackaday.com/2021/10/03/forget-digital-computing-you-need-an-analog-computer/

https://the-analog-thing.org/
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2021/09/wired_THAT-combo.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2021/09/wired_THAT-combo.png?w=731">The analog computer of decades-gone-by is something many of us younger engineers never got the chance to experience first hand. It’s pretty much a case of reading about them on …read more (https://hackaday.com/2021/10/03/forget-digital-computing-you-need-an-analog-computer/)

Laser Theremin Turns Your Hand Swooshes into Music
https://hackaday.com/2021/10/03/laser-theremin-turns-your-hand-swooshes-into-music/

In a world where smartphones have commoditized precision MEMS Sensors, the stage is set to reimagine clusters of these sensors as something totally different. That’s exactly what [chronopoulos] did, taking …read more (https://hackaday.com/2021/10/03/laser-theremin-turns-your-hand-swooshes-into-music/)

Hackaday Links: October 3, 2021
https://hackaday.com/2021/10/03/hackaday-links-october-3-2021/