About

I dabble in electronics. Here are some of my projects, thoughts, and ideas.

The goal of this blog is to document my experiments. Some of these will be to just try things out, others will be more useful applied projects. Most of the applications will be around tracking things and collecting data. I want to track how much I use the different appliances in my house, my standing desk at work, etc. There are products out there to do at least some of that already, but I want to be able to build those myself.

In addition to building things, the focus will also be on collecting and analyzing data. I will also review books and other things here, like kits and maybe the odd piece of gear.

Another topic I’m getting interested in is software-defined radio (SDR). I will likely write about my experimenting in that area here as well.

A Bit of History

I’ve been playing with electronics since I was 12 or so. I started with some Philips electronics kits to build things, and spent many hours as a teen taking things apart and desoldering boards. I always enjoyed peering into things and trying to figure out how they worked. I wasn’t nearly as successful in building things as a kid.

I also took electronics for two years in high school. The school I went to had a specialized computing track, and one the electives there was electronics. We built all sorts of circuits on breadboards, both analog and digital. We ended up designing the printed circuit board for an audio amplifier (not the original circuit though, I believe that came from a book) and building that.

At university, I was fascinated by the low-level hardware courses and took some extra ones where we designed a simple 4-bit CPU and had to make it run on an FPGA.

So I have some history doing these things and know my way around most analog and digital components. I’m generally much better at building digital circuits, and with cheap and powerful microcontrollers it’s easy to just do the otherwise analog parts in software. One of the things I want to work on therefore is to build more mixed analog and digital projects, and do as much in the circuit as possible.

Who Are You, Anyway?

Oh, sorry. I’m Robert Kosara. I run the eagereyes blog on visualization and visual communication. I also make a lot of noise on Twitter.

All content on this site is created by me, unless noted. You’re free to use anything you find here as long as you note where you got it from.