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Using 5 cheap BJT (BC547) I built a small, cheap and easy class C QRP amplifier for HF bands.
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1-30 MHz 1W class C amplifier

guidoGuido

The extension board with switches, buttons, leds, VGA output and interface to 5V logic.
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Evaluation board shield for Tang Nano 9k FPGA

pavelPavel

A modular analog computer. The modularity makes the system scalable and flexible.
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Modular analog computer

marco-mMarco M

Shoulder mounted canon from the predator movies featuring a head tracking system.
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Predator Mask and Shoulder Canon

ivoidwarrantiesI_void(warranties)

This is a feature creep that wouldn't just go away. This project is a CLI tool for GreenPAKs using the offical GreenPAK Serial Debugger.
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Open-source GreenPAK CLI tool + GSD driver

anders-helgessonAnders Helgesson

A 13-DOF bionic robot dog with ESP32 & Pi 4B. Supports ROS, OpenCV, and Inverse Kinematics for lifelike movement. Developed by XiaoR Geek.
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XR Corgi: AI Vision Quadruped Robot Dog

alisawualisa.wu

This is another camera body based on Raspberry Pi HQ Cam
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JDC34 Camera

jacob-david-c-cunninghamJacob David C Cunningham

Bed mounted speakers from spare parts
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ASMR speakers

lion-mclionheadlion mclionhead

Interactive kaleidoscope viewer
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Kaleido Cam

sren-wegenerSören Wegener

RetroChallenge 2025/10 Blog
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3D Graphics on the Microprofessor MPF-1B

michael-wesselMichael Wessel

This project is about designing a balancing robot (Firmware + Hardware) based on STM32L4 MCU.
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Balancing Robot based on STM32

yerkebulanYerkebulan

STM32 Audio Codec interface through I2S peripheral: detailed guidance on configuring the peripherals and library integration.
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STM32 Audio Codec

yerkebulanYerkebulan

Mini-PI Media Server for use on home network or as a wifi access point to stream media from
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Mini-PI Media Server

diddydiddy

This project successfully merges the nostalgic charm of a vintage tube radio with the power of modern internet streaming using the Crowpanel
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Building a Vintage Tube-Style Internet Radio

mircemkmircemk

A device to split an addressable LED signal where one output skips a configurable amount of pixels.
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Addressable LED Delay Splitter

maikMaik

Classic arcade with all the latest technological advancements, ready for the classics. Enjoy!
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THE ULTIMATE MINI ARCADE

srrubioSrRubio

Going up?

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