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nelmstr

More of a meddler than a hacker, but I enjoy my 3D printer, Maslow, and my homelab for self hosting. ESP32 noob

Nebraska

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This user joined on 02/14/2025.

My Projects

I programmed a 4-relay ESP32 dev board to interface with standard overhead door button stations for a web controller.

ESP32 Shop Door Remote

nelmstr nelmstr

Projects I Like & Follow

Supplyframe DesignLab: 2022 Hackada…

Maker Your Own DIY Professional Bench Power Supply Using A Old Computer PSU.

Maker Your Own Professional Bench Power Supply

mukesh-sankhla Mukesh Sankhla

Fully open-source RGB clock with nixie-like edge-lit acrylic digits. Or... an RGB pixel matrix display clock, if you like!

Foxie Clock

will-fox Will Fox

Dead bug style LM386 audio amp circuit inside a human figure made of copper wire.

Audio Man Circuit Sculpture

dean-segovis Dean Segovis

Adventures with an Ender 3

How to win at 3D printing

lion-mclionhead lion mclionhead

My experience designing and making a building DIY 3D printer

DIY Silent 3D Printer

luke-brandon Luke Brandon

A modern MCU-based hardware replacement for the venerable TMC1501 used in the Texas Instruments TI-57 LED calculator.

TI-57 Programmable Calculator Hardware Retrofit

Modeled after a wrist watch video sent to me by our youngest son.

Geneva Clock

greg-zumwalt Greg Zumwalt

FFT spectrum analyzer is an test equipment that uses Fourier analysis and digital signal processing techniques to provide spectrum analysis.

DIY FFT Audio Spectrum Analyzer

mircemk mircemk

how to make IoT based Smart Home Automation Using Blynk & ESP32 to control an 8-channel relay module from the manual switch & smartphone.

Home Automation Using Blynk & ESP32 IoT Project

The Smack-'n-Go Reverse Kitchen Timer

cook'oo clock

sven-gregori Sven Gregori

So it turns out that my kids never remember to turn on the bathroom fan when they take a shower, here's how I fixed that....

Home Assistant Bathroom fan automation

Six "sided" LED Randomizer a.k.a. an electric die

Hexo

thomas-countz Thomas Countz

Single channel TTL driver for in vivo or in vitro optogenetics.

Optogenetics TTL driver

Bluetooth that actually works...

Bluetooth For 2008 Chrysler Grandvoyager

saabman Saabman

Hackaday Prize 2019

Nixie clock with Android support, Web interface support, FM radio, clock/date, sensors, relays, web stream radio stations, bt/wifi control

Soviet Nixie Clock

This article will explain how to create a BLE Repeater using BLE USB dongle called BleuIO and its python

Create a simple Bluetooth repeater using python

Made a Gearbox from scratch for an upcoming Kinetic Sculpture project

3D printed GearBox

arnov-sharma Arnov Sharma

This is fixed output and fixed gain amplifier, variable is said because there are 4 different type of gain output isolated from one another.

Making a variable gain audio preamplifier

sagar-001 Sagar 001

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