3 ms·
Why isn't this widely available yet? There's a few chips that can do battery free Bluetooth, but I haven't seen any commerical products.
by eternityforest 2y ago
Why isn't this widely available yet? There's a few chips that can do battery free Bluetooth, but I haven't seen any commerical products.
- filcuk 2y agoThis one is baterry-powered, and the article says power is the difficult part.
- anentropic 2y agoIt also says: > With the M3, engineers at Michigan are the first to accomplish energy neutrality via indoor energy harvesting in a wireless system of its size. With a 1mm2 solar cell producing 20nW, the device can harvest enough energy under ambient light to run perpetually.