Extra Fizzy Homemade Carbonated Beverages

Have you ever been disappointed with how flat your homemade rootbeer or soda is? After spending an hour watching rootbeer and dry ice bubble in a cooler you would expect something fizzy, sadly the concoction never lives up to expectations. In order have carbonation strong enough to spray soda everywhere you need three things: Cold […]

Simple Water Heater Emergency Heat

This year’s Halloween nor’easter has started me thinking about how to heat my apartment if the power goes out for an extended period of time. If the water and gas are still on, one possibility is to make a simple hydronic heating system using the water heater. The basic idea is to hook a hose […]

Arduino AVR High-Voltage Serial Programmer

This Arduino sketch is useful for rescuing ATtiny microcontrollers rendered useless by incorrect fuse settings. It does this by putting the bricked tiny into high-voltage serial programming mode and writing the fuses to safe values.