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Using a scope and some off the shelf parts, measure the speed of light.
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Measuring the speed of light at home

matt-vennmatt venn

Making a processor from scratch using only 74HC series logic... and then giving it a front panel!
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Front panel computer using only 74HC logic

vactronixVactronix

Sparrow Extended UI, DHOActions, DHOTools, and DHOVisor: a suite of firmware and software designed to take DHO devices to the next level.
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Enhanced the Rigol DHO800/900 Series Oscilloscope

miguel-risco-castilloMiguel Risco-Castillo

Heavy-duty ESP32 audio streamer with built-in Ethernet, MEMS mic, RGB LED and TFT screen option
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Louder-ESP32-Pro

andriymalyshenkoandriy.malyshenko

Drop in replacement for your speaker terminals to make them smart speakers
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Louder-ESP32-Mini

andriymalyshenkoandriy.malyshenko

2×ADS131M08IPBSR 18×pogo_pin_d4x11mm_smd
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FreeEEG16-alpha2

dmitry-sukhoruchkinDmitry Sukhoruchkin

Sega Genesis/Megadrive + Sega/Mega CD + Sega 32x molded into a Sega Saturn Shell.
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Sega Fusion all in one Console

andrewsthomas73andrewsthomas73

Raspberry Pi Zero adapted for the IoT edge
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Edgeberry Zero

sanne-spuq-santensSanne 'SpuQ' Santens

Standalone S/PDIF TOSLINK recorder writing bit-perfect WAV to microSD
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S/PDIF TOSLINK WAV Recorder

elehobicaElehobica

A new kind of turntable stroboscope - the disc itself flickers with a ring of LEDs. No external light needed. Just spin and enjoy!
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LED Stroboscope

elehobicaElehobica

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

A handheld device compatible with PlayStation games, built on Sony's original hardware architecture
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A PlayStation handheld console with pure Sony hard

lcldiyLCLDIY

After 7 years, the project is still very much alive!
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WEEDINATOR 2026 Agricultural Robot

goat-industriesGOAT INDUSTRIES

Windows based editor for Apple Basic.
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Apple Basic IDE

cyplesmacyplesma