SPICE and KiCad
Designing a power supply can be an interesting yet dangerous engineering task. You can reduce some of the inherent risk by building a model and running simulations with SPICE in KiCad.
Making a Retro-Style Alarm Clock
A few electronic components, some code, and a hand-made wooden case make a fine retro-style bedside clock.
Making a Tiny GPS Position Recorder
Design and construct a battery-powered GPS receiver and recorder in a compact package, with firmware and a Linux-based GUI application for visualizing the data recorded.
A Real-Time Operating System for Microcontrollers
Exploit the full power of your microcontroller with the FreeRTOS multitasking operating system.