A typical balcony solar setup pictured in Tauberbischofsheim, Germany. Note the slight angle of the panels, which is more efficient for picking up the most sun versus simply letting them hang vertically. Credit: Triplec85, CC BY-SA 4.0
" data-medium-file="https://hackaday.com/wp-content/uploads/2026/03/2023-05-05_Sogenanntes_Balkonkraftwerk_eine_Mini-PV-Anlage_in_Tauberbischofsheim_01.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2026/03/2023-05-05_Sogenanntes_Balkonkraftwerk_eine_Mini-PV-Anlage_in_Tauberbischofsheim_01.jpg?w=780">Solar power has been around for a long time now. Once upon a time, it was mostly the preserve of research projects and large-scale municipal installations. Eventually, as the technology …read more (https://hackaday.com/2026/03/31/solar-balconies-take-europe-by-storm/)

Reverse-Engineering The Holy Stone H120D Drone
https://hackaday.com/2026/03/31/reverse-engineering-the-holy-stone-h120d-drone/

There are plenty of drones (and other gadgets) you can buy online that use proprietary control protocols. Of course, reverse-engineering one of these protocols is a hacker community classic. Today, …read more (https://hackaday.com/2026/03/31/reverse-engineering-the-holy-stone-h120d-drone/)

Improving FDM Filament Drying With a Spot of Vacuum
https://hackaday.com/2026/03/31/improving-fdm-filament-drying-with-a-spot-of-vacuum/

Keeping your filament safely away from moisture exposure is one of the most crucial aspects of getting a good 3D print, with equipment like a filament dryer a standard piece …read more (https://hackaday.com/2026/03/31/improving-fdm-filament-drying-with-a-spot-of-vacuum/)

An Oscilloscope The Way They Used To Be
https://hackaday.com/2026/03/31/an-oscilloscope-the-way-they-used-to-be/

It’s likely that Hackaday has a readership with the highest percentage of oscilloscope ownership among any in the world, and we’re guessing that most of you who fit in that …read more (https://hackaday.com/2026/03/31/an-oscilloscope-the-way-they-used-to-be/)

How Small Can A Linux Executable Be?
https://hackaday.com/2026/03/31/how-small-can-a-linux-executable-be/

With ever increasing sizes of various programs (video games being notorious for this), the question of size optimization comes up more and more often. [Nathan Otterness] shows us how it’s …read more (https://hackaday.com/2026/03/31/how-small-can-a-linux-executable-be/)

LED Matrix Clock Proudly Shows Its Inner Wiring
https://hackaday.com/2026/03/31/led-matrix-clock-proudly-shows-its-inner-wiring/

Some projects take great care to tuck away wire hookups, but not [Roberto Alsina]’s Reloj V2 clock. This desktop clock makes a point of exposing all components and wiring as part …read more (https://hackaday.com/2026/03/31/led-matrix-clock-proudly-shows-its-inner-wiring/)

A Nebula Straight from the Stars to Your Table
https://hackaday.com/2026/03/31/a-nebula-straight-from-the-stars-to-your-table/

Space may truly be the final frontier, but maybe that frontier can be closer than you thought. Pictures of nebulae and planets bring the colorful sights of deep space right …read more (https://hackaday.com/2026/03/31/a-nebula-straight-from-the-stars-to-your-table/)