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 […]
I got the chance to play with an Intel Edison board a couple of months ago, and I just got my own board today, so I spent a bit of my afternoon settings things up, and playing with it. One thing I noticed, is that most tutorials and guides for the Edison were written for the version of the […]
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 […]
For a few months now (and after successfully using a cheap USB analyzer with my Pocket C.H.I.P) I’ve wanted to make a sort of standalone Logic Analyzer / mini linux machine that I could have on my bench. I originally wanted to use one of my C.H.I.P boards, but I soon stumbled upon a bit of a difficulty: It’s […]
A recent discussion on the Pocket C.H.I.P forums made me dig up memories of my time with DJGPP (a wonderful DOS port of GCC), and its quite functional text-based IDE; RHIDE. I thought that it would be great to have RHIDE running on my Pocket CHIP for doing simple C/C++ development on the go, as […]