Tuesday, April 21, 2009

"Binary Box" prototype

This was last weekend's project. This is my "Binary Box" prototype designed mainly for educational use so kids can learn binary to hex conversion. The circuit consists of (5) on-off switches, a 7404 hex inverter, a TIL311 display, (5) LEDs and (5) 330 ohm resistors. (Power switch hasn't been soldered yet). This circuit runs on +5v. As illustrated, you can see that a lit LED indicates a binary 1 if the switch is turned on. Off represents a binary 0. Images show my son giving the unit its first test run -> 1111 = 15 = F. 1001 = 9