control theory

Nov 25 2025

World’s Most Stable Raspberry Pi? 81% Better NTP with Thermal Management

Austin

I’ve written before about building microsecond-accurate NTP servers with Raspberry Pi and GPS PPS, and more recently about revisiting the setup in 2025. Both posts focused on the hardware setup and basic configuration to achieve sub-microsecond time synchronization using GPS Pulse Per Second (PPS)...

linux python raspberry pi ntp gps pid timekeeping pps chrony control theory

Feb 27 2023

Simple Robust Control Design

pinkmuffinere

The control design process I’ve seen in the consumer electronics industry generally goes like this: Measure or estimate system parameters (inertia, friction, efficiency, etc) for our device. Design a controller for the nominal parameters. Check that our controller works in simulation Test our...

uncategorized control theory lqr robust control