156 Results for "%EC%9D%B8%EC%B2%9C%EC%98%A4%ED%94%BC%EA%B0%95%EC%B6%94%E2%9C%9Awww%2Coptime4.com%EC%9D%B8%EC%B2%9C%EC%98%A4%ED%94%BC%20%EC%9D%B8%EC%B2%9C%EB%A7%88%EC%82%AC%EC%A7%80%20%E2%9C%9A%20%EC%9D%B8%EC%B2%9C%EC%98%A4%ED%94%BC%E1%98%9B%20%EC%9D%B8%EC%B2%9C%EC%98%A4%ED%94%BC%EC%82%AC%EC%A7%84%E1%98%9B%20%EC%9D%B8%EC%B2%9C%ED%9C%B4%EA%B2%8C%ED%85%94%20%EC%9D%B8%EC%B2%9C%ED%82%A4%EC%8A%A4%EB%B0%A9%20%ED%83%80%EC%9E%84"
This is a short post about how, roughly, the thinking process goes for figuring things out for this machine. I prefer to go from top to down - I guess its a habit I picked up probably when I worked in engineering bureau during my masters studies doing...
For a project like WITCH-E, it isn't always "fun and games" with the electronics and research. Practical matters need to be addressed such as: How the heck do I mount all of these PCBs onto some acrylic? From a design perspective I wanted to use...
03/03/18Just completed Phase 1 of the ESP32 module assembly. The strategy in a nut shell is (Phase 1) to assemble an integrated development board using the ESP32 D2WD and then a module with same, then (Phase 2) solder the module to the acceptor board...
In 2021, a friend of mine gave me an Apple //e that he'd had sitting in a garage for years. He'd rescued it from a place where another one of my friends had been working, probably around 1996. I've spent a few months cleaning and fixing it up; part of...
SLooking at the Z Yoke design, which is about the same for printed and CNC metal, there is certainly room for improvement. The linear rail car is constrained from any rotation and linear translation in the X & Y, free to move up & down on the Z....
I've generally been running this circuit at 384x256 resolution, and that's how it's configured in the schematics. The main clock is 16MHz, but this is halved to 8MHz to from the pixel clock. It's divided down a couple more times to 1MHz to...
This had 2K of RAM for an 80-column display clocked at 15 MHz. The ideal clock rate for PAL TV is 14.75 MHz, but 15 MHz is still better than the 16 MHz of the BBC micro. The hardware and software are well documented.Werner Beukes recreated this, and...
The characterization test aimed to describe (characterize) the actual behaviour of the existing piece of hardware. The following verification of Ramixx500 V2 was executed: Internal Chip RAM (1 MB) Composite and RGB video outputs (with...
This is a minor update with no big changes. But I've started assembling the machine a bit, mostly because it takes up so much space when spread in pieces. First up is placing the base on the carriage, then lifting the tower in place. The tower weighs...
Throughout all my life I have been fascinated by light installations, and especially those involving LEDs. And, as the years has passed by I have made quite a few projects heavily oriented around leds in one way or another. Most of these projects has...
Created and tested 2 V9958 designs. One using the Sony CXA1645 chip to generate RGB, Composite and S-Video signals. Another that only outputs RGBs signal. The various designs for video boards that i found online, use DRAM memory chips to...
So I had a busy weekend and was able to get the shelves up and loaded with goodies.I built a simple frame out of 2x3's and secured it to every stud in the wall. This makes a very solid base, and it cost relatively little money at around $2.50 for...
I've taken a break from CP/M Plus for the time being so I don't lose interest in the project. I'm currently looking at implementing a colour graphics overlay board. Presently, the colour is generated by an ATmega164P, a 74HC74 flip flop and a 74HC08...
It has been a long time since I had a chance to do another log entry. Sorry for that, but here it finally is!Tair 3S 4.5/300mThe lens I will look at today is the Tair 3S. A 3 element 300mm prime from the USSR/Russia. This behemoth of a lens with its...