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A DIY alternative to commercially available OK-to-Wake clocks for sleep training toddlers.
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DIY OK-to-Wake Clock

tim-sTim S

Build of a diy server using Asrock N100 ITX motherboard inside a 150 year old Victorian coal box.
Project Owner Contributor

Victorian Coal Box N100 Server

john-mcdermottJohn McDermott

Modular, repairable EV built for rural roads—right-to-repair, open-source, and designed to be fixed in a barn, not a factory.
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Heartland EV

jeremyJeremy

A 512-bit magnetic core memory system that runs at 250kHz.
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512 bit Magnetic Core Memory Controller

hx2003HX2003

I built a DIY submarine that any high school student can make!
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PVCSub: A Submarine from the Plumbing Aisle

rupin-chhedaRupin Chheda

DIY 8L brewing machine automates mashing and cooking with temperature regulation, stirring, and a display-guided brew program.
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8-Liter Automated Beer Mashing and Cooking Machine

fieldmanFieldman

Imagine a teapot filled with an infinite number of fortune cookies. If it usually gave good advice, would you do as you are told?
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Teapot in The Garden

glgormanglgorman

custom(izable) circuit for sending some megabytes over differential pairs.
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Not an Ethernet Transceiver

yann-guidon-ygdesYann Guidon / YGDES

45 year old HP Logic Probe is too slow for modern electronics, so I hacked it with a Sparkfun Alorium FPGA board and display
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HP Logic Probe Hack

robert-morrisonRobert Morrison

Integrate any UART-based pollution sensor with polluSensWeb. Via simple JSON conf. —no coding, no special SW! Browser, USB-UART + sensor!
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Your Air Pollution Sensor in Browser

aleksei-tertychnyiAleksei Tertychnyi

Compact Raspberry Pi HAT with LoRa 433 MHz, temp & humidity sensor, RGB LED & 220 VAC relay for remote IoT monitoring control
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LoRaSense RGB Pi HAT – All-in-One LoRa Weather

avi-guptaAvi Gupta

The most ridiculous, overengineered, stupid way to create a 1Hz sinewave using OP-amps
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The 1Hz sinewave generator

phil-weaselPhil Weasel

Add mapping and MQTT-interfacing with ESP8266 and an IMU
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Old Roomba, new tricks

simon-jansenSimon Jansen

Pi Zero 2w mini DLNA Server for use on home wifi or on a phone hotspot
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Pi Zero 2w Mini DLNA Server

diddydiddy

Turning sensors into IoT controllers
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Pipo modules

ruprRupR

Open Hardware and Firmware for a Hall-sensor-based 6-step BLDC motor controller using PIC18F Microcontroller.
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3-Phase BLDC Motor Controller

fawaz-yousifFawaz Yousif

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