A New, Tiny Wi-Fi Chip For IoT Devices Consumes 5,000 Times Less Energy
Replacing the batteries in a security camera once a month or remembering to charge a smart speaker is not such a difficult task, but if there are several dozen such devices, the maintenance, and the energy required increases.
However, with the latest innovation, IoT devices will no longer require large batteries or frequent charging. Engineers at the University of California San Diego have come up with an ultra-low-power Wi-Fi radio integrated into a small chip to be used in IoT devices. It is just the size of grain but can offer excellent energy efficiency. In fact, it uses 5,000 times lower power when compared to Wi-Fi radios.
This new invention is founded on backscattering, a technique where the transmitter does not produce its own signal but uses the incoming signals from the nearby devices. It then modifies the signals and encrypts its data, allowing manufacturers to enjoy more flexibility. With this, smart home devices can work wirelessly and will no longer require batteries. This will ensure that devices can be made even more compact.
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