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This ESP32 Antenna Array Can See WiFi

Jeija · demo · Watch on YouTube

Embedded systems & DIY electronicsElectronics & circuit designNetworking & internet infrastructure

What it is

The creator of ESPARGOS, an ESP32-based antenna array from the University of Stuttgart, explains how it senses phase and amplitude of WiFi signals to localize devices and build a WiFi camera. It demos the Python library and project.

Why Hacker News recommends it

Recommended as the companion explanation to the Espargos project, showing how phase and time differences localize devices.

  • 1 people recommended it
  • 1 different months
  • 0 strong recommendations
  • first 2025, last 2026

What HN commenters said

  1. “There's an excellent companion video here”

    Excellent companion explanation of the ESP32 antenna array project.

    leoedin, 2025-02 · Recommendation · in “Espargos: ESP32-based WiFi sensing array”

Excerpts from Hacker News comments, linked to the originals. Summaries and labels were written by a language model from those comments.

Topics: esp32, phased array, wifi sensing, mimo, localization

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