Bluetooth Wall Player

A wall mounted, low power Bluetooth audio player with proximity sensing wakeup, media controls, metadata display, and environmental sensors.
Part 1: System design and planning
Part 2: Circuit and PCB design
Part 3: Mechanical design
Part 4: Firmware
Part 5: Installation and external power
Part 6: Conclusion, problems and screwups
Toaster Reflow Oven

A toaster based reflow oven controller with baking and reflow functions, customizable profiles, and integrated touchscreen.
Part 1: Oven hardware
Part 2: Controller hardware
Part 3: Manufacturing
Part 4: Controller software
Coming soon...