Wireless, battery-powered CSI synchronization platform based on ESP32-C3. Phase-locks multiple nodes over the air using Wi-Fi FTM and a VCTCXO. Sub-PPB accuracy.
iot hardware esp32 lock wifi wi-fi csi phase ftm antenna-array aoa sensing angle-of-arrival indoor-localization vctcxo music-algorithm eso32-c3
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Updated
Mar 5, 2026 - C