Frank DeCaire

I completed all the wiring for the Nibbler and of course, it doesn’t work. I was expecting that. In fact, if it worked correctly, I would have suspected something was up. Here’s what the front and wired side look like so far: The first thing I did was beep the wires, or rather, check continuity. … Read moreNibbler – Wiring Complete

I wired up all the VCC and GND pins on all discrete components, as well as the chips. Here’s what the bottom of the board looks like so far: I’m not spending a ton of engineering time on this circuit. So I didn’t do my due diligence and compute how much power each chip used … Read moreNibbler – Power Wires Complete

I finished arranging and soldering the wire wrap sockets to the board. I also wired up the VCC and GND buses. Here’s a photo of the latest version: The bus bar running down the side is ground, and the one running across the top is VCC (+5v). I have mounted most of the discrete components. … Read moreNibbler – Ready to Wire

The circuit for the 4-bit computer called Nibbler is simple. It only has 17 ICs, which means it can be easily assembled on a prototype board with wirewrap sockets. Or so I thought. First, it’s tough to find the variety of wire wrap sockets needed. Amazon actually sells a few, but you have to watch … Read moreNibbler – Getting the parts organized

Introduction I recently (like a few months ago) stumbled onto an article about the Nibbler. It’s a 4-bit computer built out of discrete logic. There is no microprocessor, so this is lower level than slapping together a minimal system with a Z-80. Here’s the original article if you want to see what I’m attempting: Nibbler … Read moreA 4-bit Computer