Art Controller: relay board with switches for timing

September 13, 2012 By 12 Comments

Meet the Art Controller, a new dev board available over at Evil Mad Scientist Laboratories. It provides a drop-in solution for switching higher voltage loads (but not mains). The thing we like most about it is the ability to alter a switching delay without reprogramming the firmware.

The board uses an ATtiny2313 for control. It’s fed regulated 5V power … Read the rest

Filed Under: Microcontrollers Tagged With: , , ,

8-bit binary calculator

September 16, 2009 By 41 Comments

binary_calculator

Don’t feel like shelling out $5 for a fancy factory made calculator that won’t even do binary math? [Jeff] decided to prove his mastery of gates and his disdain for base 10 by building a binary calculator using XOR, AND, and OR chips. Calculations can be input in two ways: through digital logic headers or by three banks of … Read the rest

Filed Under: classic hacks, misc hacks Tagged With: , , , , ,