The first 5 chips of the GPU were added this weekend. This included the H register (4-bit counters and buffer) and the V and S registers (8-bit flip-flops). Most of the time was taken up with software development for a video timing loop. The end result...
Abstract Three-dimensional scanning technology has reduced dramatically in price and ease of implementation. Unfortunately, these low-cost, three-dimensional scanning systems lack intuitive tracking during the scanning of a part. This leads...
How do we get the analog signals from the respiratory pressure sensor and the 8 expressive buttons via the network to a software synthesizer? We need a MCU and PHY, right? We will use one of our designs we already have at hands from an other project:...
1. First step is to create a plotly account and go to your setting and generate a token. Write down your username, api-key, and streaming token. This information needs to be added to the arduino code.2. Your microcontroller needs to talk to the "plot.ly"...
I learned a new command: dmesg. looks like it just prints out the log from startup of whats going on in the system. Found a real answer on LEDE wiki, These are “driver messages”. events related to hardware being connected/started...
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...
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...
Freeboard .io is a simple opensource dashboard framework that can be used to simply connect Mosquitti to dashboards and display data in real time. in a very easy way . all dashboards can be downloaded and exported and imported in JSON format witch can...
As a part of my thesis on the biohand, I ran some relevant tests (mostly still with no control board, which came in a few days later). Some of these tests are presented briefly here. For more detail, check my thesis! :DPrehensions (Weir et al., 2003)...
Though there was excitement around the first Perceptoscope, it was never designed for everyday deployment. The concept was proven, the seeds of the platform were built, but there was still a lot of work to be done to make it something that locations...
Update: Thanks to Neil for correcting some of my (bad) assumptions about parts.Update 2: It turns out that KiCad doesn't merge plated-through and non-plated-through hole drill files by default. I had to email the NPTH drill file to them separately. Next...
As the misery spreads, it seems only fitting that we should recognize those who are unfortunate enough to suddenly complete the SMD Challenge. To be included in this club, you must submit photographic evidence (or link thereof) of a working SMD...