IoT
Handheld ESP32-P4 SDR scanner — P25, ADS-B, NBFM/POCSAG over RTL-SDR, with a custom LVGL LCD shell.
iOS code for controlling EmazingLights Spectra Bluetooth Light Gloves
Node-RED nodes for local network control of Midea smart air conditioners. No cloud dependency at runtime — communicates directly with devices over your LAN using the Midea proprietary protocol.
A physical dashboard that displays your Claude.ai usage limits on a 128×64 OLED screen. Shows the current 5-hour session usage, 7-day cap, and live countdown to reset — updated automatically. No API key required.
An ESPHome external component that makes a cheap ESP32 + IR reading head look like a Carlo Gavazzi EM24 Ethernet energy meter over Modbus TCP — so a Victron Cerbo GX / Venus OS device detects it as a native grid meter, no extra drivers or dbus hacks required.
Full Home Assistant voice assistant on the Guition JC3636K718C round knob display, in pure ESPHome: on-device wake word, music player, timers, addressable LED ring, device control and two built-in games.
High-performance cross-platform streaming compression SDK (~4.3 KB static footprint) for embedded IoT (ESP32), Windows, and Linux. Features zero dynamic allocation and deterministic self-healing.
IKEA UPPÅTVIND → Matter over Thread
An open-source RISC-V firmware platform for ESP32-C6. Implements a BIOS/Payload architecture with a custom system call interface (ABI), independent LP-Core coprocessor management, and an anti-brick A/B OTA system.
Home Assistant custom integration for TP-Link VIGI and InSight cameras
DIY filament dryer based on ESP8266 with dual SHT31 sensors, web interface with live chart, OTA firmware updates, PLA/PETG/ABS profiles, OLED display with rotary encoder control, and exhaust fan automation. Built with Arduino IDE.
ESP32-S3 gadget that displays Claude API rate-limit usage on a tiny TFT screen
IDF v1.2: Cryptographic proof-of-delivery for fuel. ECDSA P-256. Tamper-evident. Stops $2.6M/mo theft.
ESP8266 firmware for GeekMagic SmallTV smart weather clocks with a secure web dashboard, OTA updates, live feeds, Home Assistant support, and ST7789 display UI