Researchers at the University of Arkansas and the University of Michigan have reported the first use of ultra-low power temperature sensors using graphene-based solar cells. The test is the first ...

It’s easy enough to find a solar-powered charger for iPods, cell phones, and other gadgets, but this ultra-tiny solar-powered sensor system is smaller than anything else on the market — 1,000 times ...

A new CO₂ sensor demonstrates the system design model carved out for smart building applications. Greatech, a German hardware developer and manufacturer of energy-efficient wireless embedded systems, ...

[Manish] packed lots of functionality into this radiation sensor module. The device is completely solar powered and weatherproof, so it can be mounted anywhere. It uses a Geiger Muller tube to monitor ...

In the golden age of convergence, creating a compelling piece of standalone hardware is tough. If it doesn't interact with your phone, it's a non-starter. If its functionality can be replicated with ...