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Add a rotary encoder to an Amrel programmable power supply to improve the user interface.
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Amrel Power Supply UX Mod

ogdentoogdento

Architecture and Feasibility Study of a High-Density 40-Channel AM Modulator on Legacy FPGA Silicon with Real-Time MCU Network Integration
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AM Modulator on Legacy FPGA Silicon

thomaswust79thomaswust79

Here you can access all the resources and files for this air pressure kit.
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Air Pressure Sensor Kit

nelson-phillipsNelson Phillips

Handy 7 seg module that crams two DM9368N and two digits onto a single board that I can plug in on my breadboards.
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7 Segment Display Module using DM9368N

john-lonerganJohn Lonergan

An endeavor to replicate the early design of the eponymous toy fortress from the “Masters of the Universe” franchise.
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The Castle Grayskull Prototype Project

1f4091F409

Homemade subwoofer to fill out the bass with my B&W DM4 speakers
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Subwoofer - TangBand W5-1138

john-lonerganJohn Lonergan

An endeavor to replicate the early design of the eponymous toy vehicle from the “Masters of the Universe” franchise.
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The Battle Ram Prototype Project

1f4091F409

Metalwork creation of a rim protected cap from silver plated copper
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Drinking Horn Renovation

john-lonerganJohn Lonergan

A 7-channel open-source EEG development kit that combines a dry-electrode headset, ADS1299 chip and AI agents
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NeuraDock: A Hackable 7-Channel EEG Workstation

neuradock001Neuradock001

Hang on, is that a display on your wall?
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Vertical LED digit display boards

ken-yapKen Yap

Information about reverse engineering process of a cheap aftermarket car LCD device with Car Play and Android Auto support.
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Reverse Engineering F133/D1s device

gamadrildevgamadril.dev

PHONO-EQ-100: a compact, cased MM phono preamp designed to run on a Li-Po battery, over 180 hours per charge, charged over USB-C.
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Tiny Battery Phono Preamp for MM, USB-C Charged

elehobicaElehobica

An operating system written in Java
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The ultimate guid to build a Novel JavaOS

x-wangX. Wang

Utilizes an I2S mic and I2S amp using an ESP32 with the ESPNOW wireless protocol to communicate audio wirelessly at over 600+ meters.
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ESP32 Walkie Talkie

aditya-vermaAditya Verma

A modular, repairable remote station for amateur radio — open hardware, built almost entirely AI-assisted.
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OE5XRX — Open-Source Modular Remote Ham Station

peter-bucheggerPeter Buchegger

Same park, same fee, same night: one pedestal scored 30/100, the next scored 91. Five months of data shows what your surge protector misses.
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RV Pedestal Check

jeff-thomasJeff Thomas