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Digital Phased Arrays, Made Affordable

ESPARGOS builds low-cost digital phased arrays for wireless sensing from commercial off-the-shelf wireless communications chips. ESPARGOS One is our first 4 × 2 antenna dual-polarized 2.4 GHz Wi-Fi antenna array, built from phase-synchronized ESP32 chips.

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Demo Applications

Camera Overlay

Show received WiFi signal power and delay as an overlay on top of a camera image.

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Azimuth-Delay Diagram

Visualize the azimuth and delay characteristics of incoming WiFi signals in real time.

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MUSIC Spatial Spectrum

Use the MUSIC algorithm for angle of arrival estimation: Visualize spatial spectrum.

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Combined Antenna Array

Combine multiple 4 × 2 ESPARGOS antenna arrays into one large phase-synchronous array.

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Instantaneous Frequency-Domain CSI

Visualize the frequency-domain channel state information captured by all antennas.

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Instantaneous Time-Domain CSI

Visualize the time-domain channel state information captured by all antennas.

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Phases by Antenna

Visualize the received phase at each of the 4 × 2 antennas of the antenna array.

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Received Phases over Time

Monitor the average received phase at all antennas as it changes over time.

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Time of Arrival

Monitor the precise time of arrival of WiFi packets at each antenna array.

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