Hardware Have a look at the Hardware Overview diagram. Here are the details that go with the numbers. 1. USB is used to program the NodeMCU, but I was unable to power it with USB. 2. The NodeMCU schematic (included in the Files section) shows that there...
After completing the Nand2Tetris course, I had a hankering for creating an actual working computer that I could solder together and program. I took on this challenge mostly for the learning experience. My goals were to get some more experience with digital...
The OLED ScreenIt was bought at Adafruit. I made all the testing and code with it on a breadboard, when it was done I unsoldered the screen and necessary components and soldered everything back on an half SOIC-28 adapter (same sapcing as the ribbon,...
The basic idea is to increase the positional-resolution of an analog-output encoder by looking for *crossover* between various multiples of the input-signals... E.G. the first obvious crossover to detect is when channel A crosses over its inverse. In...
TIRED OF THE JERKS ON THE HIGHWAYS IN USA THESE DAYS?You don't want to mount a PC monitor on your bumper. But your back window could take a small EDDIE BAUER, AUDIOVOX, or UNIDEN TV monitor. All you need is a A/V jack on your laptop or tablet and a 9-12V...
The timekeeping aspect of this project is very simple. While the GPS clock project had granularity down to the 10th-of-a-second, which required some interpolation, this clock only requires one second granularity. There is a need to keep a sub-second...
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...
Video demonstration1kB?!So why even program a tiny sound generator in assembly?The inspiration for this was the 1kB contest. Also I wanted to see if I could really do it. This resulted in a lot of thinking about minimal implementations of algorithms...
I got unhealthy and needed a way to make some kind of income from home with nightmare neighbours and allSo my story on this journey. tbh you can see from I started this account. I got ill, started this hackaday just to keep logs and show people what...
The Mission I needed some stripboard for a prototype. Even in the age of Oshpark and JLCPCB I still find stripboard prototypes to be useful. I can make them in an afternoon and they are easy to modify. But, where to source stripboard? ...
[Edit 2019-11-15: This is becoming the never-ending project. I have been prodded by several people that want to extend the design to work with a stack of supercapacitors. I had no need for that, so I did not put any effort to insure the functionality...
I was getting water for the greenhouse the other day out of an old cow trough that fills with rain water. It is nearby and you don't need to wade into it to get the water. Sadly, you do need to watch for polliwogs as they seem to take up...
Nereid - Kintex 7 PCIe FPGA Development BoardFor many of us, learning FPGA was a natural next step from the world of micro-controllers and Embedded System. You learn the basics of Embedded System, do some projects using micro-controllers and microprocessors...
BlueBoard#01 is... A 100mm by 100mm board that's for prototyping and one-off projects that use SMT and through-hole components. An earlier prototype Features 19 standard footprints2 x 1.27mm pitch footprints (10 pads, 28 pads)1 x 0.65mm and 0.635mm...