Convert Cheap LED Bulb to IR Bulb
Mario Mosaic Tabletop
How to Make a 18650 Li-ion Battery Pack!
Raspberry Pi Stop-Motion Animation Rig
Tide and Weather Clock
Build the Rainbow Apparatus
Sonoff Garage Door Opener
Night Vale-Inspired Smoked Wings W/Cactus Buffalo Sauce
Uber Home Automation W/ Arduino & Pi
I agree with you on AC & DC power supplies in the home. Excluding major appliances, everything in my home now is running DC via transformer (phones, computers, modem, lights, etc.) which is frustration when I see one plugged in & being inefficient.
Free Lumber the Hard Way
Raspberry Pi Class
The Plasma Speaker