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Portable dual fluxgate magnetometer with real-time heatmap display and PC analysis for magnetic anomaly mapping.
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Magnetron Geoscanner Basic V2 – Portable Magnetic

ertugrul-sarikayaertugrul sarikaya

USB-powered PCB prototype for 20 Hz–20 kHz signal analysis
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Audio Band Signal Analyzer and signal Generator

gedionGedion

A simple yet powerful system for Air Quality monitoring
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Air Quality station

jp-gleyzesJP Gleyzes

An open control system for creating thriving worlds inside your vivarium, powered by Raspberry Pi, wired with Node-RED
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Freya - Vivarium Control System

sanne-spuq-santensSanne 'SpuQ' Santens

Notes
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Synthetic piano

lion-mclionheadlion mclionhead

Magnetic Road Transport System for TT Scale Layout — DIY Control on ESP32
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Magnetic Road Transport System for TT Scale Layout

oldaOlda

Wearable BLE-MIDI gestural instrument: 12-notes, 20 scales, aftertouch, flex glissando, X/Y accelerometer, LED display, patch save/load
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SNEAKY GESTURES V2

michel-morinMichel Morin

Arduino Uno based temperature controller using MAX6675 and K-Type thermocouple with automatic 5V relay switching and safety protection
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Arduino MAX6675 Temperature Controller

himanshu-dadaHimanshu Dada

Or should that be 'A new hope'?
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Excalibur 64 - A new build

daveDave

Windows based editor for Apple Basic.
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Apple Basic IDE

cyplesmacyplesma

A 7-channel open-source EEG development kit that combines a dry-electrode headset, ADS1299 chip and AI agents
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NeuraDock: A Hackable 7-Channel EEG Workstation

neuradock001Neuradock001

Handwritten digit recognition on a $3 MCU. Neural network exported as a standalone C header by Hasaki. No runtime, framework or dependencies
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MNIST on ESP32-C3 — No TensorFlow, Pure C

alex-rositoAlex Rosito

An open platform for turning cheap servos into smart actuators.
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OpenServoCore

aaron-qianAaron Qian

Electronic Payload to record and display flight data for model rocket.
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Rocket Payload

bud-bennettBud Bennett

Simple and cheap logic reader for PC with USB
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Logic reader

keithKeith

A probe to measure temperature using an oscilloscope.
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Oscilloscope Thermometry

schuyler4schuyler4