For this challenge, we asked you to show off your hacks that power themselves sustainably from the environment around them. After all, nobody likes wires, and changing batteries is just a hassle. W…
With all the battery technologies and modern low-current sleep modes in most microcontrollers, running a sensor and microcontroller combo off-grid and far away from any infrastructure is usually no…
Many of us will have seen the portable solar panels offered on our favourite online purveyors of electronics, but some who have bought them remain unimpressed with their performance. [t.oster92] h…
Have you ever looked out across the rooftops of a city and idly gazed at the infrastructure that remains unseen from the street? It seems [varunsontakke80] has, because here’s their project, …
As we learn more about all the nasty stuff floating in the air, it becomes more compelling to monitor the air for pollution levels. [Aleksei Tertychnyi] does just that with pollutagNode2, a solar-p…
