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585

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How to Run an Arduino for Years on a Battery

533

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GarageMinder: Automatic Garage Door

1.2K

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Building A Stirling Engine Bike

341

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Arduino Saves Heat Pump (And heats/cools pool)

319

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Jcorp Nomad: ESP32-S3 Offline Media Server In A Thumbdrive

1.5K

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Smallest Gaming Mouse Has Crazy Fast Polling Rate And Resolution

1.3K

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Reliving VHS Memories With NFC And ESPHome

893

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Running An Entire PS1 Emulator In A DS Cartridge

2

1.1K

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Making A Smarter Laptop Cooler

1.3K

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DIY Door Fan to Fix My Groggy Mornings (decrease night time CO2 in bedroom)

270

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Building A Custom Paper Tape Punch Machine

1.3K

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FazJammer: ESP8266 Bluetooth & Wi-Fi & 2.4GHz Band Jammer

883

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The Most Satisfying Way To Commit (code)

243

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Bento Is An All-In-One Computer Designed To Be Useful (repurposed steam deck)

153

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Iron nitride permanent magnets made with DIY ball mill and tested with DIY magnetometer [Applied Science] [24:26]

1.1K

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Start your own Internet Resiliency Club (Meshtastic & LoRa)

749

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The PCB Router You Wish You Had Made

1.0K

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A 17-year-old designed a cheaper, more efficient drone. The Department of Defense just awarded him $23,000 for it.

1

1.3K

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How A DIY Chicken Coop Door Opener Went From Simple To Complex

2

751

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Build A 400 MHz Logic Analyzer For $35

902

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Simple Open Source Photobioreactor

1.5K

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2025 Pet Hacks Contest: Cat At The Door

1

764

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Air Lab – A portable and open air quality measuring device

1.1K

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Building A Wireless Motorized Fader For Lighting Control

1.3K

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Look To The Sky With This Simple Plane Tracker

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