Tier Jerker

The Finished Shield:



40 lines of IO plus a number of the Arduino's lines brought out to header sockets. A couple of status LEDs and we're done. I've taken the PORTC lines, AKA the analog inputs A0-A5 and D2-D7 to the back of the board. As it is, the shield's pass-through connectors are offset by 50 mil, making piggy-back boards impossible to make cleanly out of proto-board. The power lines and D8-D13 have their pass-throughs in place, as they are essential for my MMC sail.


The Linguine Layout:



I love kynar wire! Did I ever mention that?? :D The enamel coated copper wire is great too.


The EEProm Topper:



This is a a scavenged megabit chip. My first application for this board will be to program this. As it slots into the IO card so it will fit into a small adapter board that I have in mind to enable it to emulate a 64k ROM to transfer code to my burner.


The Assembled Wedding Cake:



Silly! But that's what I like about it. An antidote to the misery happening in the world today ;)

Shields ... On?

Up you blaggard! Up!



No, on second thoughts 'on' is definitely more appropriate in this case. As I mentioned in a previous post I'm crystalising the max expander board. It's about time I ruined my eyes and lungs with some close work.



I'll be putting two of the blighters on this board. Seeing as I'm down there anyway I reasoned that 40 lines is better than 20, what.

I didn't see any sense in making this a fixed purpose board, hence I'm opening up the lines with SIL sockets so further adapters can be inserted. The 1st will be a programmer for some of the megabit EEPROMs that I've salvaged from a couple of P2 motherboards.