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PT2258 paired wih ESP8266 to get the maximum from a tone controller, PCB and code with video setup is shared in this tutorial.
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Wi-Fi Server Based 6 Channel Tone Controller

sagar-001Sagar 001

Integrate any UART-based pollution sensor with polluSensWeb. Everything runs locally in the browser — no drivers, no cloud. Easy.
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Your Air Pollution Sensor in Browser

aleksei-tertychnyiAleksei Tertychnyi

This project proposes an optical–structural hypothesis for the flat rotation curves of spiral galaxies. Instead of invoking invisible mass,
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Layered-light interpretation of galactic rotation

younes-hassanabadiYounes HASSANABADI

Radiation measurement device with Raspberry Pi Pico and STS-5 tube
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Geiger counter

florian-wilhelm-dirnbergerFlorian Wilhelm Dirnberger

Smart meter system to track, visualize, and analyze electricity, water, gas, and heat
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smart-MAIC Energy Monitoring System

bsverdlyukb.sverdlyuk

Sketches with constraints and a feature history. What more could you want.
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BREP.io A browser based parametric modeler.

mmiscoolmmiscool

A system designed to capture and collect energy from EMFs, now being refined to enhance circuit efficiency and output.
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AEFC - Ambient Energy Field Converter

rhea-raeRhea Rae

Exploring RF only LoRa mesh behavior using various devices.
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LoRa

rhea-raeRhea Rae

The unlikely Piezo Speaker Tone Driver
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Piezo Speaker Driver

matthewMatthew

Transcribe MIDI to readable music notation
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MIDI transcriber

lion-mclionheadlion mclionhead

A low cost robotic hand for robots and humans
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Yeah Robotic Hand (formerly Rebelia)

vittorio-lumareVittorio Lumare

XiAleste Next is an 8-bit home computer, which is compatible with software for the Amstrad CPC6128 released on 13 June 1985
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XiAleste

h2wh2w

A video projector out of parts that I've felt bad throwing out about
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The Projector Project

mkdxdxmkdxdx

ESP32 Based GPS Navigator with OSM offline maps.
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IceNav

jordi-gauchaJordi Gauchía

Open-source real-time music visualizer that lets you create animated color themes by describing them — AI turns your ideas into visuals.
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Music Visualizer with Colorful AI-Generated Thems

sylwesterSylwester

A fully open modular dock for Framework Expansion Cards, designed for power scaling, custom modules, and future operation powered directly f
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DockFrame

pedro-manuel-martnPedro Manuel Martín

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