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Recent Projects

Cloud-free local control of Mitsubishi split heat pumps: ESP32 talks to the indoor unit's CN105 port and bridges it to MQTT.
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MELCloud Replacement – ESP32/MQTT

stefanschnitzerstefan.schnitzer

Electronic bomb simulator designed for Airsoft matches
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TM1638+CH32V003 Prop Bomb

danjovicdanjovic

A new computer built on my own CPUs, a 65C02/65C816-compatible chip and a RISC-V core, running on FPGAs with HDMI, sound, keyboard and SD.
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Ember65: a modern 65xx computer, from the silicon up

jonathan-steinJonathan Stein

Documenting my path learning embedded systems from scratch including ESP32, Arduino, sensors, and everything in between.
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esp32 Hardware Journey

niam-savaliyaNiam Savaliya

An RP2350 replaces the undocumented controller in Apple's UniDisk 3.5 and drives the stock Sony 800K mechanism on a drop-in PCB
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Disk Hamr: A UniDisk 3.5 controller

robert-ricoRobert Rico

compact, energy-efficient, battery-powered system for ePaper-based display of information gathered via Wi-Fi
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Tinta - low power wireless epaper device

casparcaspar

One SDR receiver. Two hardware platforms. Dozens of decoders. No installation.
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OFFgrid-SDR

diddydiddy

New cut on an old idea
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2026 Mobile Compute Station

curtis-soldanoCurtis Soldano

1-bit MCU switch-level simulator, from reverse-engineered die photos -> transistors -> logic gates -> components
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MC14500 simulator

kbsriramkbsriram

Qwen
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Qwen

rhea-raeRhea Rae

4S LiFePO4 Active Charge-Shuttling Battery Management System
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Active Charge-Shuttling BMS

cadweazlecadweazle

A low-cost SDR receiver. Powered by CH32V467, targeting 1MHz-4GHz, 10-bit ADC, and up to 20MHz bandwidth via USB HS.
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SDR32 - A Modern RTL-SDR Alternative

synapseSynapse

A smart CD player + Internet radio + Bluetooth receiver HiFi component based upon the ESP32 microcontroller
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ESPer-CDP

akasaka-ryuunosukeAkasaka Ryuunosuke

With carefully controlled DSP, the ESP32 can add subtle warmth while still keeping the effect fully adjustable and bypassable.
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ESP32 Tube Sound Processor – Warm Analog Sound

mircemkmircemk

Building bio inspired realistic looking humanoid robots to do chores and sports and stuff.
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My Advanced Realistic Humanoid Robots Project

larryLarry

An open-hardware NEMA 11 positioning stage with printed 1:1 gears, an M3 screw, editable CAD and optical measurements.
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3D-Printed Microscope Stage: Motion Measured

ali-azadbakhtAli Azadbakht

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