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Build an IoT system that sends real-time WhatsApp alerts from ESP32 over Wi-Fi without a SIM or paid API.
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WhatsApp Alerts with ESP32 Using Cloud

electroscope-archiveElectroScope Archive

Use an Arduino UNO R4 Wi-Fi and a free cloud API to send real-time WhatsApp alerts based on sensor readings, no GSM, SIM, or official API
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Arduino UNO R4 WhatsApp Alerts via Cloud

electroscope-archiveElectroScope Archive

If you’ve ever left your workshop wondering “Did I really turn everything off?”, this project is for you.
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Workbench Power Manager

jeroen-brinkmanJeroen Brinkman

Aggressive auth loops. Non-standard write patterns. Edge-case PN532 target responses. Reader stress testing like never before.
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I Built an RFID "Disruptor": Confuses Readers

cifertechCiferTech

The digital LED clock that your (great-) grandparents would have used without difficulties!
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Great-Grandparent's Digital Dream Alarm Clock

michael-wesselMichael Wessel

Got an irreparably broken TRS-80 Voice Synthesizer? Give it a brain, um voice transplant!
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Voices of the past, speak up!

michael-wesselMichael Wessel

Robots for #MyalgicEncephalomyelitis & #LongCovid patients, to virtually visit friends and family. #BotkinsCharity
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Botkins Charity Project

dejanDejan

An omnidirectional electric motorbike that in place of wheels uses technology to balance on a single large sphere.
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TALON Omnidirectional EV

nick-thatcherNick Thatcher

You remember that stainless steel tumbler you got at that conference that one time that you don't remember? Let's make it your own!
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Refinishing Yeti Tumbler

manchickenmanchicken

Scout is an open-source RP2350B development board in the Arduino Uno form factor
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Scout: The Arduino That Arduino Forgot to Make

apollo-timbersApollo Timbers

Flexible, compact and beautiful prototyping framework
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next.module

ruslanRuslan

An 8-bit Full Adder, with Accumulator to store one operand. Do binary addition (and subtraction) together with the 8-bit Workbench™.
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Byte Adder Subtractor

nijssenNijssen

Mini-PI Media Server for use on home network or as a wifi access point to stream media from
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Mini-PI Media Server

diddydiddy

Classic arcade with all the latest technological advancements, ready for the classics. Enjoy!
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THE ULTIMATE MINI ARCADE

srrubioSrRubio

Raspberry Pi Pico W turns typed text into natural speech using Wit.ai and I²S audio – simple hardware, cloud TTS, and portable voice output.
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Pico AI Text-to-Speech Voice Output

electroscope-archiveElectroScope Archive

Turn an ESP32-C3 into a talking microcontroller using Wit.ai cloud TTS, I2S audio, and a MAX98357A amplifier — perfect for voice alerts.
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AI-Powered ESP32-C3 Text-to-Speech (Wit.ai)

electroscope-archiveElectroScope Archive

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