A couple of months ago I was asked if I could prepare a sort of workshop on one of my favorite topics: ASM Programming for PIC microcontrollers, which I of course accepted on the spot. Now, I wanted to include a couple of “hands-on” lab sessions in this workshop, and because of this, I needed […]
You don’t see them around that much anymore, but a few years ago the ESP-01 modules took the world by storm as quick “serial to wifi” bridges for microcontroller projects. With a few serial commands you could quickly connect even the most basic microcontroller to the internet over Wifi!
It took me a really long time to do this second part of my Pi-based Logic Analyzer project, mostly because of two things; the first one being that at one point (after I had pretty much all the case design, extra hardware and software tweaking done for my RPi1) I decided to switch to a Raspberry Pi […]
It has become pretty common for me to have one or two unfinished projects on my bench or the shelf, because “I just can’t find the time” to complete them, or because I’m “waiting for something the project needs”. And both things happened in one way or another with a Linear Power Supply kit that I bought after […]
If you are using your Arduino’s PRNG (Pseudo-Random Number Generator) for anything more serious than flashing random lights for your Christmas decorations, there’s a chance you might run into some unexpected issues, as the random() function in Arduino seems to be somewhat broken. Why? Let me explain. Background Most basic random number generators in programming libraries and platforms are based on what is called […]
Not long ago I purchased this neat and compact DC to DC Buck Boost converter that performs reasonably well. It has a maximum output of 38V, 6A and has more than enough flexibility and features to be a secondary power supply in my lab. I recently found a review of this product by Julian Ilett on his channel (which […]
I have a very simple “audio/video” setup in my room. My main computer display doubles as my “TV” for playing videogames and watching movies. Technically speaking is just a 22″ HDTV with a bunch of input options, which I have connected to all of my devices, mostly through an HDMI hub, so I use the same screen […]
This is the second part of my adventure building a UV Exposure box, in which as you can see, I actually finished the build. In the first part I made the structure and planned the electronics. This part covers a whole lot more, distributed over many weeks doing small things here and there.