3D printed Bionic Hand a little IOT and a Xamarin Mobile App
summary
A functioning 3D‑printed prosthetic for a 15‑year‑old is built with printable sockets, four linear actuators and fishing‑line tendons, an Adafruit Feather M0 + motor driver, and a Xamarin.Forms mobile app over Bluetooth LE to choose and upload grip sequences. Sensors move from expensive Myo pads to cheap piezo/force sensors. Total parts run about £500 parts (plus a ~£300 printer), goal to under £1k versus £10–15k commercial arms; project is open source and working but still refining battery, memory and motor PWM issues. Adafruit Feather M0 Xamarin.Forms Bluetooth LE four linear actuators
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