I got myself a Petzl NAO RL for (ultra-)trailrunning, wich is equipped with a USB C connetor for the battery. My first thougt: Nice, I could run it on a bigger powerbank in my backpack. This kind of works, when using a extention cord with 5 kOhm...
Native C compiler (smaller C) with Color text TV system. Under a tiny memory, libraries are hard to link, so library such print, filesystem is on the flash and call from function-table. PS/2 keyboard(US, Japanese) can be used. Library for Color Video...
ResearchCreating Sudoku Puzzles - This looks most promising!Sudoku Puzzles Generating: from Easy to EvilHow can I generate Sudoku Puzzles? - Create it outside the app, then obfuscate it5 ways to create a Sudoku - Validate that puzzle is solvable each...
How It Works Brief Summary I started with a well-known disassembly of Combat (by Harry Dodgson, later improved by Nick Bensema and Roger Williams). To this, I added a K-nearest neighbor algorithm that uses examples from a training dataset to make a...
Thanks to RT-Thread OpenSource Community Developer #hyafz contributed and opensource this application.1 Introduction plccore is a RT-Thread-based runtime core for programmable logic controller (PLC), together with the upper computer programming...
The internet has a dizzying amount of information on EC and pH. After sifting through it, I found some potentially interesting links that are detailed below. The DIY EC meter project that inspired the original EC portion of this design A tutorial on...
An unexpected cold shower made it clear that I need a new controller for our solar warm water heating system ("split architecture" which is typical for installation in middle and northern Europe - thanks @Saabman for helping me understand that I had...
This idea was born when i saw this project years ago: https://hackaday.io/project/170961-resistor-color-code-clock-v10 NOTE: There is a bug showing resistor values under 100 since gold nor silver can be displayed. AND the multiplier seems to be...
From OpenCores PDP-8 page: Features In this FPGA implementation, the PDP-8 CPU can be configured to emulate the instruction execution of a PDP-8 (Straight-8), PDP-8/S, PDP-8/S, PDP-8/I, PDP-8/L, PDP-8/E/F/M, PDP-8/A, HD-6100, or a HD-6120. The...
For lack of a better place, the Instructions project section gives a detailed description of the system. Last update September 25, 2018. If you would like more information on the custom Raspberry PI board that controls the system, there is another...
One Bit CPUs There are a couple of one bit CPUs on the Internet. I have start with the MC14500B chip. This chip was used many years ago for PLCs but the documentation is still available: http://tinymicros.com/mediawiki/images/e/ec/MC14500B_Handbook.pdf...
After the explorations with #YGREC-РЭС15-bis, I reached several limits and I decided to scale it down as much as possible. And this one will be implemented both with relays and VHDL, since the YGREC8 is a great replacement for Microchip's PICs....