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by Stwerp
4686 days ago
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Backscatter refers to reflecting RF power. Ambient backscatter is modulating the reflections of the ambient RF signals as opposed to beaming a signal in from a source as RFID does. The device you built uses the incoming signal to power the device as well as drive the speaker. The devices in this article are using the incoming RF signal to both power the device as well as reflect for wireless communication. |
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