jehugarcia shows us how to make an emergency lithium battery from a kit.
Yesterday, the East Coast was hit hard by a tropical storm that left millions without power.
That got me thinking (and searching) about off-grid alternatives, which led me to jehugarcia’s video on his home DIY Powerwall project.
You may have seen hydraulics on cars, but Carl Bugeja shows you how to make PCBs jump.
In this video I created a new flexible PCB actuator prototype with an attempt at making it bounce