What's Inside a Smartphone? Exploring the Internals with Apache NuttX Real-Time Operating System

Explore the intricate workings of smartphones through the lens of Apache NuttX Real-Time Operating System in this 25-minute conference talk by Lup Yuen Lee, an Apache NuttX PMC member and IoT expert. Dive into a year-long project that dissects the PINE64 PinePhone's internal components and implements smartphone features using Apache NuttX RTOS. Gain insights into essential smartphone technologies, including MIPI DSI LCD displays, I2C touch panels, USB controllers, LTE modems, and accelerometer/gyroscope sensors. Discover how Arm64 interrupts are handled and learn about innovative approaches to creating smartphone apps using LVGL Graphics Library, Zig Programming Language, WebAssembly Simulation, and Arm64 Emulation. This talk offers a unique perspective on smartphone internals, making complex technology accessible through the implementation of an open-source real-time operating system.