Building an IV plotter from an Arduino Nano - How do you use this thing, anyway?

Some instructions and wiring diagrams to make things easier.

_{Building an IV plotter from an Arduino Nano - Table of Contents}

If anyone is going use Rodriguez, I figure it’ll be beginners looking for an easy to build project. That’s kind of Rodriguez’s only real advantage - the circuit is simple.

Unfortunately, beginners have trouble with converting schematics to wiring diagrams. I have an “issue” open on the Rodriguez GitHub page right now from a person who seems to have some trouble getting it wired properly.

To help that person and anyone else who may be interested in Rodriguez, I drew up some breadboard wiring diagrams this afternoon. I put those diagrams and some instructions in the Rodriguez wiki.

I had a look around for programs to make breadboard wiring diagrams, and found PEBBLE. I don’t know how good it is for complicated things, but it did just fine making the relatively simple wiring diagrams for Rodriguez.

There’s not much to tell about making the wiki, it was just a bunch of drawing and writing and making pictures. Have a look at the wiki to see the finished product.

The wiring diagrams are mildly interesting:

Basic diagram

Diode diagram

NPN diagram

PNP diagram

I couldn’t find a way to label the transistor connections inside of PEBBLE, so I used GIMP to add the “EBC” markings.

Someday I’ll get around to adding the FET functions, but I still haven’t gotten around to ordering some FETs.

_{Building an IV plotter from an Arduino Nano - Table of Contents}