This project started with a pile of spare parts. When I was an Electrical and Computer Engineering student decades ago, I began hoarding parts. Found a broken fax machine? Well, pull out that LCD panel! Busted old Mac? Pull the power supply! Scanner...
The environmentals display and logger (EDL) displays the temperature, humidity, pressure and time, then logs the data in a microSD card. I'm using an Arduino as the brains of the operation. I bought a COTS SD card module, thermometer/hygrometer/barometer...
Today is the deadline for the Hackaday Prize contest, and that's a great chance to write a recap article about Prism. ---------- more ---------- Before going on with the technicalities, you can read an overview of the reasoning behind the project, learn...
Good news, everyone! Documentation has taken a back seat to getting things done, I hope understandably so. So I’m going to stick to a briefer play-by-play for now. Though things are coming together: Was rather stuck on how to motorize the magazine, dreading...
We've upgraded the Fetch hardware drastically! We are super excited to finally share what has been going on behind the scenes on this project since before COVID hit and slowed down our progress. First, have a look at our latest project update video,...
An oscilloscope is for looking at waveforms, so I started digging around for some stuff to look at. I found the 74AUC gated ring oscillator I had discussed on another project, and fired it up. 74AUC logic outputs have interesting steps in their transitions...
The Kobold K2 processor is quite suitable to run a language like C. Fortunately I had started a compiler project several years ago, but I never finished it. So now I had the opportunity to get some results from all the hours that already went into...
It was harder than I thought to find a good information (for free) about the NFC protocol standards. After reading countless application notes, datasheets, forums and what-not, I came up with the first workable software. I wrote a tiny standalone...
A more proper software release with Readme and License on Github. Added UID readout, which is included in the URL as a parameter. Makes possible to have statistics on how many business cards are read via the NFC. So far the UID is just displayed...
In the last log the watch had only basic watch functionality and couldn’t do much outside of telling the time and reading its own battery state. In the last few weeks the functionality has grown to encompass more of what would be expected from a basic...
Positioning the nozzle by IR remote has grown into a pain in the mane. It would be money to have 3 preset positions. The mane problem with presets was supporting 5 more remote control buttons. The clockspeed had to be stepped up to...
juggie12:21 PMDoes that not come ith experience Charlie ... ? Charlie Morris ZL2CTM12:21 PMI don't mind using other peoples circuits, but I need to understand how they work forst. June12:22 PMThat would be amazing. Charlie Morris ZL2CTM12:22 PMMS-BOSS....
It has been nearly three years since my last update here! But in the mean time, the software is pretty much done (famous last words), we've been playing a lot with ITS and all its graphics fun (multi-player mazewar, spacewar, it really is amazing how...
With the mainboard taken care of, and a proper bus pinout defined, I decided to tackle the memory as next target. Compared to the original, I don't plan to use the old-style Intel 2112 RAM chips, but instead went for the cheapest non-volatile storage...
With wood, saws, chalklines and screws, it's time to get to work. Here's today's activity.Rip one 4x8 to make two 2x8. first is for kicker board, and second is for top.frame up wallStack layout and drill wall holesTo drill the holes, we first...