It has been 2 years since I worked on ESPCLOCK V1. I actually started the design for V2 shortly after that, and bought all the required parts, but stuff happened, and I didn't get to spend much time on the project. But things are getting back on track...
Sometime last year some friends approached me about a project they were working on and maybe wanted me to get involved with. While this didnt lead anywhere one of the concepts we were discussing really intrigued me and I wanted to have ago, seeing it...
GERBER PCB: https://mega.nz/file/zZ5hmRSa#dQFUK1ZjS5RdYPjYKaGl5hNydDziKjKeKmunMRPJ75U SCHEMATIC DIAGRAM A very easy electronics project: it is an astable oscillator that causes the LEDs that appear in the diagram to blink. Here we will see the schematic...
Around 1985 I built a 10x10 LED oscilloscope based on one of the Forrest M. Mims III designs. It used a CD4017 Johnson counter for the horizontal sweep and an LM3914 bar-graph driver for the vertical driver. The display was coarse, and I never measured...
Some years ago, I set out to make my own OLEDs. This took a lot of persistence as many materials providers, manufacturers, and researchers refused to work with me, some of them providing their own brand of discouraging words along the way. Luckily, I...
The theme of this years badge is based on one of my favorite movies, The Fifth Element. Of course there is a little DEF CON flare thrown in there but we tried to stay faithful to the original prop. At least as far as we could in PCB form. For instance...
Conway's Game of LifeThis project implements well known Conway's Game of Life.Note that this implementation uses Periodic Boundary Conditions to simulate a field of an infinite size, i.e. each boundary is connected to the opposite boundary. This makes...
If you need a very-high throughput or a multithreaded web server to host data for everyone on the web, look at Apache (with CGI), NGINX or https://www.gnu.org/software/libmicrohttpd/ However they are limited by the CGI's basic inability to preserve a...
I use an ancient Telequipment D43 oscilloscope for most of my measurements. It is in fact a couple of years older than I am. I've had it for 30 years now, and have no plans to scrap my old friend to replace it with a modern digital oscilloscope....
This project makes use of Photo Luminescence using paper layered with Strontium Aluminate which has a green glow although different mixes can result in different colours and persistence. Once charged, light from the paper will continue to be emitted...
This project is based on PIC24EP512GP806, which has 52K (53,248 bytes) of Data memory and 512K of Program memory. CPU speed is 140 MHz (70 MIPS), but here it runs at 120 MHz (60 MIPS).Due to the limited amount of RAM, frame resolution is 220x220 pixels,...
Objectives: receiving date and time from the DCF77 transmitter, decoding it, displaying it on a 128x64 pixel dotmatrix displayreceiving UTC from GPS satellites with a GPS module, displaying it on a 128x64 pixel dotmatrix displaystand-alone date and time...
RSS FEED OLED ESP8266ESP8266 Based RSS Feed on color OLEDThis is an example of RSS Feed implementation on ESP8266 using MQTT as transport protocol and SSD1331 based color OLED screen as displayWhat is RSS?RSS is a standard for publishing feeds to the...
Links to project details (GIT, Wiki, Docs) are on the left. The laziest intro to this project is the 2-minuite video created for THP Quarterfinals (i.e. the first video I made):Or even better, see my full 5-min final video (there is also the semifinal...
CatFeeder This project builds an automatic feeder for cats (or other small animals). The goal is build a complete, DIY solution, from the fabrication of the container, to software are electronics. The feeder is managed using a web interface, so you can...