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A pro-grade stereo audio board for the Raspberry Pi Pico using TI's TLV320AIC3104 CODEC.
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Raspberry Pi Pico Audio Board

richard-pRichard P

500Ah LiFePO4 Battery Bank Monitor Upgrade
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From Voltage Logging to Coulomb Counting

bill-collisBill Collis

An isolated firmware debugging probe
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Grapple Probe

jonathan-herbstJonathan Herbst

Passive moat geometry + Electrodynamic Dust Shield to protect electrical connectors from contamination.
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Dust-Tolerant Add-On for Extreme Environments

nathan-elijah-seguraNathan Elijah Segura

A small Rapid Serial Visual Presentation ebook reader
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ebook RSVP Reader

grgory-paulGrégory Paul

Completed
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21 Band Audio Spectrum Analyzer

samm928samm928

After several amplifier projects, I wanted to build a compact Hi-Fi stereo amplifier based on the well-known STK4191II power amplifier IC.
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Hi-Fi STK4191II Stereo Amplifier

youkito1991youkito1991

A call for open discussion on emergence and why cooperation is needed to understand it.
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We Need to Start Talking About Emergence

sally-jenkinsSally Jenkins

I ported a falling blocks game to my logic analyzer.
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Running code on the HP 1653B Logic Analyzer

alexander-r-prussAlexander R Pruss

Open-source ESP32 CYD environmental station: T/H/pressure/CO2eq on a touchscreen, MQTT (HA autodiscovery, ThingsBoard, Domoticz), OTA
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SensorStation3

viacheslavViacheslav

Program your (handheld) radio using your web browser. Leverage Chirp's 550+ drivers and never need to update anything.
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codeplug.org

jan-szumiecJan Szumiec

Making a machine to shoot electrons at sample and measure backscattered current to generate a sub-micrometer topographical map of sample.
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DIY Scanning Electron Microscope

rafael-voglerRafael Vogler

Learn by doing, explore the computer byte. Toggle in the bits and see their decimal, hex or octal value. Built-in game!
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8-bit Workbench ED: a STEM-kit on number systems

nijssenNijssen

Ardiuno on ATmega328P/ESP32-C3/RASP PP is controling Si4732, Si5351a, and TA2003.
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DIY Airband Receiver with Hybrid RF Front-End

nobchanobcha

text to sound from a phone to control a keyboard without additional software, using a simple web page that emits sound.
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Macro keypad controlled by sound

nicolasmanicolas.ma

A pocket-sized front panel for the diagnostic tools you already use
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Scottina

scottskyScottsky

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