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FemtoBeacon: Motion sensor board with Wi-Fi and Bluetooth capabilities

Overview

The FemtoBeacon is built around the ESP32-PICO-D4 system-in-package (SiP) module and features an onboard 9-DoF motion processing unit, precision altimeter, RGB LED, a button, two DAC pins, and two GPIO pins. Its small size, light weight, and open hardware design make it an excellent choice for research, AR/VR, and physical computing projects. FemtoBeacon is part of modern computing history. It's quite possibly the smallest open source wireless IMU design in the world - if not, then it's certainly one of the smallest.

Design Files

femto-beacon

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Update:2025-06-23 13:04:31

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