1 watt Morse transmitter :

3 Input First Response Monitor:

Big Mouth:

Bingo!!! (on your TV):

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..

Combinational Conjuring Trick:

Conjuring Trick:

Connecting Sega 3D Glasses to a PC Serial Port:

Electronic Coin tosser:

Electronic Craps Game:

Electronic dice:

Electronic fish lure :

Electronic Jam:

Electronic Scoring Game:

Fastest Finger First Indicator:

GameBoy Camera Parallel Port Interface:

GameBoy Cart Programmer:

GameBoy LCD Schematic:

GameBoy MBC1 Circuit Equivalent:

GameBoy Power & Cartridge Schematic:

GameBoy ROM+RAM+MBC1 Cart Schematic:

GameBoy Schematic:

Games: the first game show timer was modified for better performance

Magic Wand:

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.

Number Guessing Game:

PIC Tetris Game:

Pine Racecar Victory Judge:

PowerGlove Interface:

Quiz Game Circuit:

Slot Car T Volt Chronograph:

Super GameBoy Schematic:

Three Input First Response Monitor:

Video Pong: a video game with software generated video signal, based on PIC16F84

Video Tetris: a video game with software generated video signal, based on PIC16F84