Collaborate Disseminate
Many of us remember back in our school days taking tests and filling out answers on a Scantron sheet, those long rows of A, B, C, D, and E that …read more Continue reading Bubbles, Belts, and Bulbs: How the Scantron Works
While there is a time and place for wirelessly controlled devices, sometimes you want something you can just reach out and touch to interact with, no apps to install or …read more Continue reading LightComposer – Reach Out and Touch Your Lighting
Many oscilloscopes have provisions to be connected to a computer and used remotely, but most of those interfaces are fairly rudimentary. To address this, [Winfried] has developed the SDS-Remote, a …read more Continue reading SDS-Remote Brings Power-User Features to Siglent Scope
Building your own sprinkler system controller isn’t that difficult on the face of it, but what happens when your system starts to grow, adding more distant areas? To tackle this, …read more Continue reading RS-485 Sprinkler Control: Scaling Irrigation Across the Farm
We’ve all had those times when your electrical device of choice is running low on battery. Sometimes you even plan ahead and are also carrying a battery pack, but what …read more Continue reading 2026 Green Powered Challenge: SolMate Charges On the Move
Not so long ago, e-ink devices were rare and fairly pricey. As they have become more common and cheaper, some cool form-factor devices have emerged that suffer from subpar software. …read more Continue reading Pocket-Sized e-Ink Gets a Firmware Upgrade
When taking macro photographs, you often need just a tiny bit of controlled motion — so little that it’s tough to pull off by hand. To address this, [Salveo] designed …read more Continue reading Tiny Moves, Big Depth: An Open-Source Macro Focus Slider
One of the great things about building electronics today is how affordable SMT components have become — sometimes just fractions of a cent each. That low price often means ordering …read more Continue reading Tame the Tape: Open-Source Dotterboard for Bulk SMT Parts
Remember those brick cellphones in the 1990s? They were comically large by today’s standards. These phones used the 1G network to communicate and, as such, have been unusable for decades …read more Continue reading No More Paperweight: This Vintage Brick Phone Is Back Online
E-readers are an awesome creation allowing you to display digital information in a way that requires little battery life. While there’s plenty of very impressive models to chose from on …read more Continue reading Calculator Case to Scratch-Built Pocket E-Reader