platformio-core Projects

The TYPE-2 is an ESP32-S3-based polyphonic synthesizer featuring a custom hybrid dual-rate DSP engine and analog-modeled filters. It utilizes FreeRTOS for task management, I2S for high-fidelity audio, and capacitive touch for a responsive user interface.

Midad is an open-source firmware for Xteink e-ink devices, specifically engineered for Arabic script and right-to-left languages. Running on the ESP32-C3 platform with FreeRTOS, it provides a comprehensive e-reading experience with advanced text shaping, OTA updates, and a unique suite of integrated applications like a gym logger and Tasbih counter.

An ESP32-based pixel-art virtual pet platform for M5Stack devices that reflects live metrics from sources like Datadog and PostHog. The system uses a Python-powered hub to communicate over BLE or MQTT, allowing the mascot to react to technical telemetry or AI agent activity. It is built using the Arduino framework on FreeRTOS and features a modular configuration system for custom assets and HID functionality.

TinyMakerWifi is an enhanced firmware for the TinyMaker MSLA resin 3D printer that introduces WiFi connectivity, a web-based dashboard, and direct integration with PrusaSlicer. Built on the ESP32 platform using the Arduino framework and FreeRTOS, it features advanced resin tracking, power-loss recovery, and over-the-air (OTA) updates.

An embedded desk display project using the Waveshare ESP32-S3-Touch-AMOLED-2.16 to track live Claude Code usage, local weather, and background agent health. The system leverages the LVGL graphics library for its UI and connects to a host computer via Bluetooth LE using the NimBLE stack.

An open-source DC uninterruptible power supply designed specifically for the Raspberry Pi 5, featuring triple-input power paths and smart battery management. It utilizes a dual-MCU architecture with a CH32X035 for power delivery and an RP2040 for the user interface, while supporting remote monitoring via FreeRTOS and the lwIP stack.

An ESP32-powered emulator for the Berbel BFB 6bT remote control, designed to integrate Berbel kitchen hoods into smart home environments. It features real-time status decoding, MQTT auto-discovery for Home Assistant, and utilizes the NimBLE stack to optimize memory usage.

Codelight is a multi-platform monitoring and remote control system for AI coding agents such as Claude Code, GitHub Copilot, and Cursor. It utilizes a Python companion daemon to broadcast agent status and manage interactive prompts across ESP8266-based desk screens, Android devices, and desktop environments via WebSockets and D-Bus.

A secondary e-ink desk display designed for AI Agents like Claude Code and Codex, utilizing the M5Paper V1.1 hardware. The project features a Python-based daemon for server-side rendering and an ESP32 firmware that supports Wi-Fi, BLE, and USB communication.

Claude Pocket is a voice-activated AI assistant firmware for the M5Stack Cardputer ADV, powered by Anthropic's Claude and OpenAI's Whisper and TTS APIs. It features a custom C++ implementation that handles voice activity detection, streaming transcription, and real-time audio playback on hardware without external PSRAM.

OpenAirScope is a high-performance, open-source environmental monitoring platform built on the STM32H743 and ESP32-C3 microcontrollers. It features multi-protocol wireless connectivity including LoRaWAN, Wi-Fi, and Bluetooth, alongside a sophisticated sensor suite for comprehensive air quality and acoustic analysis.

DeskPet is a pixel-art companion for the M5Stack Cardputer that synchronizes with Claude Code sessions via Bluetooth Low Energy. Built on the ESP32-S3 using the Arduino framework and NimBLE, it provides real-time visual feedback on AI agent states, including task progress, token usage, and permission approvals directly from the device's keyboard.

An AI companion robot project for the M5Stack AtomS3R that connects an ESP32-based body to local AI services. It supports speech recognition, local LLM chat, and text-to-speech integration while providing a hardware interface for sensors and servos.

This project provides pre-compiled Tasmota firmware binaries specifically optimized for smart meter reading via SML and advanced scripting on ESP32 and ESP8266 platforms. It features a dual-track approach offering both the classic Tasmota Scripter and the high-performance TinyC VM, utilizing FreeRTOS for background processing and LittleFS for filesystem management. The firmware supports energy monitoring, Google Charts visualization, and emulation of smart battery interfaces like Shelly Pro 3EM.

An automated irrigation system built with ESPHome for the M5Stack AtomS3-Lite and Unit Watering modules. It supports up to six plants via I2C expansion and features moisture-based automation and safety limits through Home Assistant integration.

Clawdmeter is an ESP32-S3-powered desk dashboard that monitors Claude Code token usage and displays it on a 2.16" AMOLED screen. It uses the LVGL library for its high-resolution UI and the NimBLE stack to communicate with a host daemon via BLE, while also functioning as a HID keyboard for shortcuts. The project features dynamic pixel-art animations that react to real-time API utilization rates.

A physical companion device for the Claude Code AI assistant, utilizing the M5Paper V1.1 e-ink display. It features real-time session mirroring, hardware-based tool approval, and touch-screen interactions powered by ESP32 and a Python-based daemon.

HydroponicOne is a production-grade IoT control system for hydroponic environments, utilizing ESP32 microcontrollers for real-time sensor monitoring and actuator automation. It features a modern technical stack including a React dashboard, a Node.js backend, and a dual-database architecture using PostgreSQL and InfluxDB.

A high-performance, multi-backend secp256k1 elliptic curve cryptography engine optimized for CPU, GPU, and embedded systems. It supports a comprehensive cryptographic stack including ECDSA, Schnorr, and ZK proofs, targeting platforms like ESP32, STM32, and RISC-V.

AgentDeck is a multi-surface physical control interface for AI coding agents, enabling real-time steering of agents like Claude Code and Codex via hardware. It supports 13 different display surfaces simultaneously, utilizing a Node.js or Swift-based bridge to coordinate between terminal-based agents and devices like the Stream Deck+, Android tablets, and ESP32 displays. The system includes a sophisticated performance evaluation framework (APME) that uses local SQLite storage to track and optimize agent efficiency.

This firmware extracts water and gas usage data from Itron EverBlu Cyble meters using ESP32 or ESP8266 microcontrollers and a CC1101 radio transceiver. It implements the proprietary RADIAN protocol on the 433 MHz band, offering seamless integration with Home Assistant through both MQTT AutoDiscovery and a native ESPHome external component.

PicoSound is a dual-core audio engine for the Raspberry Pi Pico (RP2040) that offloads audio processing to Core1 to ensure glitch-free playback. It supports an 8-channel mixer, synthesized waveforms, and WAV file streaming via LittleFS or PROGMEM, targeting both Arduino IDE and PlatformIO environments.

This project enables ESP32 microcontrollers to manage Tesla vehicle charging and monitor telemetry over Bluetooth Low Energy using the ESPHome framework. It supports key pairing, charging current adjustment, and vehicle wake management while utilizing FreeRTOS for task handling on the ESP32 platform.

TinyBling is a wearable electronic pendant featuring 16 WS2812C-2020 addressable LEDs driven by a CH32V003 RISC-V microcontroller. It utilizes custom assembly-optimized bit-banging to control NeoPixels without hardware SPI, supporting various light animations and interactive games. The project is designed for compact PCB manufacturing and runs on a rechargeable LIR2032 coin cell.

A dedicated e-Ink remote control for Home Assistant built for ESP32-S3 devices like the M5Paper and Lilygo T5. It utilizes the Home Assistant WebSocket API for real-time state updates and control without requiring additional server-side plugins.

OpenSpool is an open-source filament management system that uses NFC tags to automatically sync spool settings with 3D printers. Built on the ESPHome framework for ESP32 microcontrollers, it integrates with printers via MQTT to automate filament identification and configuration.

An open-source USB power meter based on the CH32V003 RISC-V microcontroller and INA219 sensor. It monitors voltage, current, and power (up to 100W/20V/5A) and displays data on a 0.96-inch OLED screen. The project features a compact design with PD 2.0 pass-through support and includes comprehensive hardware, firmware, and 3D enclosure files.

BugBuster is an open-source, four-channel analog/digital I/O debug and programming tool built around the ESP32-S3 and the Analog Devices AD74416H. It features a high-precision ADC/DAC, waveform generation, and a 32-switch MUX matrix, all managed by a FreeRTOS-based firmware and a cross-platform Tauri desktop application.

A collection of custom ESPHome components designed for Xiaomi MIoT devices that utilize the MIoT Serial Communication protocol. It enables users to replace proprietary cloud-dependent firmware with open-source alternatives for local control of air purifiers, fans, and humidifiers via Home Assistant.

A custom firmware for the LilyGo T-Deck handheld device, featuring a graphical IRC client built with LVGL. It supports WiFi connectivity, audio playback, and various command-and-control features on the ESP32-S3 platform.

A remote relay control system based on the ATmega328 microcontroller and Quectel M66 GSM module. It features SMS-based command processing, 433MHz remote control integration, and environmental sensing via the AHT20 sensor. The project includes a custom power supply design and a non-blocking state-machine-driven firmware architecture.

A comprehensive collection of programming examples and projects for the mBot2 robot and CyberPi control board. It provides support for both MicroPython and Arduino (PlatformIO) development, covering hardware features such as motion sensing, AI, networking, and motor control.

An Arduino-based firmware for E-Ink weather stations targeting ESP8266 and ESP32 platforms. It supports BME280, SCD41, and DS18B20 sensors, provides MQTT connectivity for smart home integration, and features a web-based UI for configuration and custom design uploads.

A rendering service and ESP32 client system that converts Home Assistant data into optimized 1-bit monochrome images for E-Ink displays. It features a Node.js backend for HTML-to-BMP conversion and an ESP32 firmware that supports chunked image downloading to accommodate memory-constrained hardware.

A high-resolution, wireless laser Digital-to-Analog Converter (DAC) powered by the ESP32-S3. It features 16-bit 8-channel output, SD card playback, and support for ILDA Digital Network (IDN) and custom UDP streaming protocols.

A collection of ESPHome configuration files and external components specifically designed for M5Stack hardware. It provides ready-to-use YAML templates for devices like the CoreS3, Atom EchoS3R, and PowerHub, utilizing the ESP-IDF framework for Home Assistant integration.