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DIY Magnet Polarity Detector - How to Identify Poles with a Hall Sensor from a PC Fan
Pavleski Aug 27,2025
 Recently, while working on a project, I needed to determine the polarity of several permanent magnets of different shapes. At first glance, it seemed simple, bringing the magnets closer together to see if they attract or repel, but I still couldn't determine it precisely this way. So I came up with the idea of making a very simple electronic device that would display the poles of the magnets in a very elegant way with two LEDs with different colors for each pole. It can immediately be...
DIY USB Commodore
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Commodore 16 (C16) Plus 4 RF modulator audio s-video replacement V2 C116 264 series
kinmami Aug 27,2025
Commodore 16 (C16) & Plus/4 RF modulator replacementIt fits the commodore 16 & Plus/4 and replaces the RF modulator with an optional S-VIDEO port and Audio 3.5mm jack.Based on THS7316, the PCB provides a crisp image in Y/C and COMPOSITE yet does not eliminate jail bars.The original DIN port remains valid.BOM list https://www.digikey.com/en/mylists/list/JIYFVU7FGS
commodore 16 audio
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DigiMAX Mk2
E. Aug 26,2025
This is an upgrade over the original DigiMAX, featuring less-expensive chips, channel auto-switching (including lockout to allow for manual/deliberate switching), and a more modern design in general.This design combines the basic features of the original DigiMAX Mk1 with the 8BSS project, all in one tiny package, providing two 8-bit DACs and two 8-bit ADC's on the User Port, with a new auto-switching function which makes writing or reading sample data as fast as if the chips were on the Expansio...
Commodore C64 C128
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C64/C128 Internal stereo SID
E. Aug 25,2025
This is a simple two-SID-chip plug-in board for most Commodore 64's and 128's, including the plastic-case C128-D.The second SID can be placed in any I/O page the machine supports, and it can be moved off of the base of the I/O page you put it in and placed at any other $xx20/40/60/... section therein, if desired. You can also put it in the $D400 page just above the primary SID.This board has provision for the "background noise silencing" hack also, to reduce the digital bus noise the 6581 tends ...
Commodore C64 C128
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C128-DCR Internal Stereo SID
E. Aug 23,2025
This is a simple two-SID-chip plug-in board for the American Commodore 128-DCR.Although it isn't intentional, this board may also fit "flat" C128's and plastic-case C128-D, and C64 motherboard assemblies #250407 and #250469 (but not any of the others). For those machines, it would be better to use the stereo board designed specifically for them:https://www.pcbway.com/project/shareproject/C64_C128_Internal_stereo_SID_17f28143.htmlThe second SID can be placed in any I/O page the machine supports, ...
Commodore C128-DCR
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Commodore Amiga Atari Joystick Pad Mouse External Passthrough USB 5V adapter with ESD protection 64 128 VIC-20
kinmami Aug 22,2025
There is no longer a need for a 5V external power supply unit with a USB port.With this solution, Commodore, Amiga, or Atari computers can provide up to 1A of current through the D-sub 9-pin port.The system is fully protected against ESD, RF noise and overload.The joystick, joypad, or mouse can be connected and used while supplying 5V externally.Important: Do not connect power delivery units or chargers as a back-power supply.BOM list https://www.digikey.com/en/mylists/list/H3EPAYL6P5
Commodore Amiga Power supply
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Room Air Quality Monitor
Arnov sharma Aug 18,2025
Greetings everyone and welcome back!Here’s something super fun and informative: the Room Air Quality Meter Project that turns room air quality data into a vibrant visual experience.This device, which is powered by the Raspberry Pi Pico W and the SGP40 gas sensor, does more than just monitor the air; it visualizes the environment using Conway’s Game of Life on two RGB LED panels.It is designed to constantly track Total Volatile Organic Compounds (TVOC) and convert the measurements into ...
DIY USB 3D printing
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Commodore AMIGA Video connector breakout board DB 23 25 cable wiring SCART
kinmami Aug 12,2025
BOM https://www.digikey.com/en/mylists/list/VZWCRA77CNThe board fits the plastic enclosure of a DB25 and provides all necessary signals for making an RGB cable.
Amiga Commodore Display
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Wireless Power Transmission, Long-Distance and High-Efficiency with Class-E Tesla Coil
Pavleski Aug 07,2025
 Wireless energy transfer also known as wireless power transmission is a method of getting useful electricity from one place to another without the need for electrical conducting media. This innovative technology eliminates the need for traditional power cables, offering a convenient and efficient way to charge or power various devices. A wireless power transmission system generally consists of transmitter that converts input power into a time-varying electromagnetic field and receiver...
DIY USB Commodore
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Delta Nas Project
Arnov sharma Aug 03,2025
Greetings everyone and welcome back.Introducing Delta NAS, a compact and customizable network storage solution built around the powerful LattePanda 3 Delta.Equipped with a 1TB SATA SSD, this sleek setup is housed in a fully custom-designed 3D-printed enclosure. Delta NAS mounts seamlessly onto a wall via a specially crafted tray mechanism that integrates with a standard TV mount, allowing easy sliding and secure placement.What sets this build apart is its internal battery pack PCB, providin...
3D printing SLA Commodore
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With many Samsung zFlip phones hitting the unfortunate fate of a broken folding screen, I took it as an opportunity to build my own silly phone. Taking only the minimum parts required for the phone to...
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