Circuit improves on first event detection: 08/16/2001 EDN -
Design Ideas / The circuits in Figure 1 and Figure 2 exhibit
certain advantages over the circuit shown in the Design Idea in
EDN , "Circuit detects first event," May 3, 2001, pg 89. The
n-player first-event-detection circuit offers several
improvements: It has fewer passive components. It needs only n
diodes instead of (n2+n)/2 for three or more players..
Memory Game: MeGaM is based upon the early 80s
"simple-Simon" game. The opponent (microcontroller) slowly
builds up a random LED sequence, which the player has to repeat
step-by-step by pressing the corresponding push buttons.