OpenPrintSense - 3D Printed BLE Flex Sensor Glove

OpenPrintSense - 3D Printed BLE Flex Sensor Glove OpenPrintSense is an open-source project that combines 3D printing, hardware, and software to create a wearable finger tracking system. The key innovation is a fully 3D-printed flex sensor that uses conductive TPU filament - as the sensor bends, its electrical resistance changes, allowing precise measurement of finger flexion. Data is transmitted wirelessly via BLE to an Android smartphone. How It Works The 3D-printed sensor combines flexible TPU with conductive filament. When you bend your finger: - The conductive filament stretches - This increases the electrical resistance - The microcontroller reads the resistance change via analog input - The bend angle is calculated and sent to the app Use Cases - 🎮 Gesture-based game controllers - 🤖 Robot hand control - 🏥 Rehabilitation therapy tracking - 🎵 Musical instrument interfaces - 📊 Motion capture for research Electronics - Microcontroller : Seeed XIAO nRF52840 Sense - Power : USB-C or 3.7V LiPo battery - Wires : For connecting sensor to microcontroller 3D Printing Materials - Flexible Base : Bambu Lab TPU 90A - Flexible structure - Conductive Element : Recreus FilaFlex Conductive - Variable resistance sensing Read the GitHub for more information on assembly and functionality: https://github.com/PaBu04/OpenPrintSense Have fun building the project! Stay ceative!