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    • What if we could predict the future?
      What if we could predict the future?
      Compact and Low-Cost ESP32 IoT Air Quality Monitor
      Compact and Low-Cost ESP32 IoT Air Quality Monitor
      The perfect cheap Arduino alternative? (Floppy Boards)
      The perfect cheap Arduino alternative? (Floppy Boards)
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Bertrand Selva

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  • Encrypted off-grid LoRa messaging terminal with GPS sync and dynamic key destruction. No network, no trace, full control.

    Pi PICO LoRa text messenger

    21
    0
    1
  • A low-power embedded system to forecast temperature two hours ahead

    What if we could predict the future?

    31
    0
    1
  • Low-cost PMR446 collinear with high gain, accurate impedance match, and a fully 3D-printed structure for reproducible builds.

    3×5:8λ PMR antenna :Clean, Matched, 3D Printable

    20
    0
    1
  • Invisible indoor pollutants? This ESP32 IoT node (AP mode) reveals them—TVOC, eCO₂, temperature, humidity rate —via its own Wi-Fi dashboard.

    Compact and Low-Cost ESP32 IoT Air Quality Monitor

    22
    0
    1
  • DIY off-grid terminal using Arduino Mega, TCM3105 modem, GPS, and error correction for resilient text communication.

    Fallout-Style Communication Terminal: AFSK Modem

    19
    0
    1
  • This project presents a compact system capable of determining the direction and elevation of a sound source in real-time with Pi PICO

    Acoustic Targeting Module for Tactical Drone

    273
    0
    7
  • How to spy on your neighbor (scientifically)? Acoustic parabola + NLMS on ESP32.

    Acoustic Parabola with NLMS Adaptive Filtering on

    112
    0
    5

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