The log An even better ALU touched a few interesting things but has one fatal flaw : the XOR operation needs the NEGated operand SND, because it is also used by the final stage of the adder! The self-tests don't pass and I now remember why. The optimisation...
This log is all about the why, not the how... Space is the limiting factor in this project. I've got a full top PCB pane of 25.4x25.4mm and around 1/3 of that on the bottom side to put parts on. The rest of the bottom side is occupied by the coin cell...
I did some improvements to the code for generating the last 20 readings and a running 10 minute average on a webpage. Of course work on improving things is never done. I"m probably now going to work on improving reliability of the connection between...
With this current heat wave I was curious to find out just how hot my attic gets. I had some DS18B20 1-wire temp sensors on hand so I set out to create a cable for it. and connect it to an ESP8266 D1 board I started off using some speaker...
Now for some functions and settings that we'll run only once during start up.Get radar Station IDWe'll use the location_to_station function to take the lat long coordinates from the secrets file and make a request to api.weather.gov for that particular...
So it's just a straight forward Pi OS Lite deploy onto a 16GB uSD card, configured totally headless, so ssh and WiFi configs put on the boot partition, apt upgraded, then the pi user removed, and my own substituted with sudo access. Lighttpd and...
Key Features in Software Designing: 1 Face Library3 Modes: Scanning Mode, Tracking Mode, and Stand-by Mode3 Algorithms: Face Detection, Face Matching, and Face Tracking1 Stand-by Timeout MechanismFull Progress Design Diagram:Details about each Function:...
Commercial Background Passport recognition is often used in international traveling scenarios such as customs checking, airports registration, hotel check-in, etc. To improve the effectiveness and efficiency, right now there are many digital passport...
Most clocks use sound to wake you up. This clock is no exception. A little "DFPlayer Mini" module does all of that, also MP3 decoding. It even includes a speaker driver. Yue Xin YX5200-24SS module! Check for short circuit between pin 3 and...
After some google searching, I came across the Nordic Semi Power Profiler Kit II. So why make it when there's already an affordable COTS-solution that has the features I need? The desktop application runs in Linux as well. The DIY-route starts...
Welcome to 3D concrete printing, a game-changer in construction and design. This technology enables rapid construction of robust and intricate structures. It's not just a trend; it's a practical innovation that reduces waste and cost. From homes to...
Techniques ReviewWe are going to consider only time series analysis in this section. There are reviews of "complexity measures" (Feldman and Crutchfield 1998, Daw, et.al. 2002). Kuusela, et.al. (2002) compare the results of ten different complexity measures...
Its made entirely from printed parts and things we had laying around. The printer being victimized is an OpenBeam Kossel Pro.MechanicsI started off by quickly designing some linkages in Solidworks. The holes fit some little ball bearings we had laying...
Hardware to buyAlmost all of the hardware for the Pyball is available off the shelf at Adafruit. Feel free to shop around though; these are generic items and you might find better prices at Amazon or one of the big-time suppliers like Mouser, Digi-Key,...