The Four Player Coffee Table Pong Video Game.

Step 8 Mount the circuit board and solder to the matrix.

Fire up your hot melt glue and glue the PCB to the underside of the table.

PLEASE NOTE, I FIRST GLUED IT IN THE MIDDLE TO ONE END OF THE BOARD AND THEN HAD TO MOVE IT BECAUSE I NEEDED TO DRILL A HOLE THERE TO MOUNT THE PADDLE CONTROLLER. SO DON'T MAKE THE SAME MISTAKE THAT I DID! MAKE SURE YOU MOUNT THE PCB AS PER THE SECOND PHOTO.

The cathodes will need the network cable wires to connect them because they require more current, the anodes however can just use the thin enamel wire (this is because we turn on an entire column of cathodes at once which means it may need to handle the current of 30 LED's at once.)

The first photo shows The board mounted to the underside of the table. I simply applied some hot melt glue to each of the four corners. The Solder pads on the left hand side of the photo are for the cathodes. The circuit can handle upto 32 columns of cathodes but since this project only uses 30, you only need to connect the bottom 30. Just start from the bottom and work your way up (I.E. The bottom PCB connection goes to the bottom column of LED cathodes then the next one up, goes to the next one up etc...)

The second photo shows the LED Anodes connected to the top part of the PCB. Again the PCB connections simply line up with the LED's (I.E. the very right row of LED Anodes connects to the very right PCB solder pad. Also, this circuit can handle up to 32 rows of LED anodes but we are only using 30, so all you need to do is start from the right, work your way to the left and leave the last two pads on the PCB alone.