The blog post discusses the repair of a Commodore SR-37 calculator, focusing on addressing a power consumption issue of 1 W when the device is off and fixing a malfunctioning key. The author explains the role of a resistor in the ...
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5.3SVGAlib shim for SDL2
2026-01-14 • programming code graphics effects sfml svga library
A nostalgic exploration of creating a translation layer from SVGAlib to SDL, including code examples and necessary adjustments for graphics rendering.
The author shares their experience of setting up a small 10 cm fish tank and the challenges and advantages it presents. They discuss the limitations of such a small tank, including the inability to use larger equipment and the qui...
The author discusses the unexpected reproduction of a Radix auricularia japonica snail in their aquarium, speculating on its arrival as either an egg or a micro-snail. They describe the appearance of the newly hatched snails and p...
The post explains how to use an oscilloscope to analyze USB-PD negotiation. It details the process of exporting oscilloscope data to Audacity and PulseView, and setting up a logic analyzer decoder. The author also provides tips fo...
The text discusses the repair of an unmarked Apple II Plus clone that wouldn't boot into BASIC. The author found that the issue was with the ROM, which was fixed by cleaning the pins and the socket.
The text discusses the repair of a malfunctioning Commodore 3040 floppy drive, providing detailed instructions on how to clean the drive, fix the drive speed, run drive diagnostics, and verify the disk. The author also shares thei...
0The US government, what a fscking shit show
2025-04-10 •
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The text provides notes on the Common Source Code Project, which includes emulators for Japanese old computers. It gives instructions on how to get ROMs for the emulators, and how to set them up to work in Wine. It also provides d...
The text discusses the problem of inverted characters not showing up correctly in ZX80 replicas. The author explains the issue and the solution, which involves using different 74LS00 and 74LS10 chips, changing capacitors and resis...
0Commodore SR-37 calculator part 3
2025-08-19 •
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02025年10月、iPhoneでメルカリ（アプリ版）にログインできない時の対処方法
2025-10-23 •
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The text documents the construction of a 'Tennis for Two'-like game using op amps. It explains the history of analog computers and op amps, and how they can be used to sum, invert, integrate, and differentiate voltages. The author...
The author discusses their frustration with laptops that don't have USB-A ports and their makeshift solution using various adapters and connectors. They also mention the use of a powered hub and the compatibility of microcontrolle...
The text describes the repair of an Apple II PSU, including the replacement of RIFA capacitors. It includes details of the repair process and the condition of the machines.
The text describes the process of building and repairing a power supply for a replica Apple 1 board. The author details the process of building the power supply, testing the voltages, and debugging the video signal. The author als...
The article discusses how to sniff IR codes with an ESP32 microcontroller without writing a single line of code. It provides detailed instructions on how to connect an IR receiver module to the dev board and how to build the examp...
The text discusses the process of building a ZX80 replica, including the PCB design, etching, and tinning processes, and the use of companies like PCBWay and JLCPCB to automate the process. It also details the use of Inkscape to t...
The author discusses how to make a PS3 controller work on the Switch or other devices supported by GP2040-CE, such as the Xbox and PS4/PS5. They explain that the PS3 controller works on Linux and how to modify Pico-PIO-USB to work...
The text is a review of the Commodore SR-37 calculator, which was listed as non-functional but was repaired by the author. The repair was quick and involved fixing the power adapter and cleaning the gunk from the keys. The author ...