I’m building a compact fall-detection unit around an Arduino board and need a working prototype that can reliably sense a fall with an accelerometer and push an app notification to both Android and iOS. What I need: • Arduino sketch that reads the accelerometer, filters noise, and detects falls with clear, adjustable thresholds or algorithms. • Schematic and parts list so I can assemble the hardware (Arduino + chosen accelerometer + power, no extras). • A lightweight mobile app (cross-platform or twin native builds) that receives the alert via BLE, Wi-Fi, or another easy-to-integrate channel and shows a clear notification when a fall is detected. • Simple documentation—how to flash the code, pair the device with the app, and tweak sensitivity. I already have the basic components; I just need your firmware, app code, and guidance to get everything talking. Keep the solution lean and reproducible on commonly available boards like Arduino Uno/Nano. If you’ve tackled similar safety or IoT projects, let me know—sample screenshots or video of your detection demo would be ideal. Using Arduino MKR1010 WiFi board