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Category Archives: Anything
How to print, preview in VB Studio Express
There is classic basic program for Commodore 64 computer to print maze on the screen. This program random prints “/” and “\” character on screen. I wanted to implement same program on modern computer and print the result. Not only … Continue reading
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Quick hack – optical mouse for Amiga (or Atari) computer
I was testing old Amiga computer and noticed, that somewhere I lost the mouse. It is proprietary mouse for Amiga computer, it even does not work with Atari ones. The mouse itself is very simple- only raw quadrature information is … Continue reading
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Permanent link to Atari 1088XEL SMD
Permanent page for Atari 1088XEL SMD project.
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TI-99/4A
Whenever I talk about designers of the ZX Spectrum computer I use to say that they were smoking weed. Now I acquired one computer from another family of computers, TI99, I can tell that Texas Instruments designers not only smoked … Continue reading
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ZX interface 1 and Microdrive
I collected several ZX Spectrum series computers, but I don’t have any fancy peripherals. After several attempts I managed to buy ZX Spectrum Microdrive and interface 1 for it. As always with ancient hardware it is working a bit, but … Continue reading
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Sinclair QL – modifications for EPROM
I have Sinclair QL, “issue 5” with 3 EPROM chips. One of the chips is riding on the other chip. And yes, it is the original solution from Sinclair engineers- they were pressed by Apple computers new product and they … Continue reading
Real easy Video fix for ZX Spectrum +2 (gray, “Toast Rack”)
I bought a ZX Spectrum +2 gray (toast rack) for my retrocomputer collection and it was the fail. The video output was bad and also there is a serious problem with RAM or ULA. But this article is about making … Continue reading
Printer from calculator, part 2
Continued from part 1. The printer from the calculator is a neat toy, but we want a real USB printer. So, using my new STM32F103 CubeMX USB printer class for communication with the host computer and some tricky INT based … Continue reading
ARM:0018 STM32CubeMX hack – printer class device
This article is about printer class device for STM32F103 and STM32CubeMX. Somehow there is NO printer device class example in whole internet. There ar CDC or HID examples copied from same STM32CubeMX example with minimal explanation, few of mass storage … Continue reading
Cutting PCB panels for new universal STM board
I’ve noticed, that Chinese made “Blue Pill” PCB has fake chips. Some chips are with smaller ROM and RAM size, some chips behaves a bit strange. Also, several mine projects are getting bigger and bigger. Recently, I acquired several bigger … Continue reading