Sao Paulo, Brazil. I build home automation systems that work when the internet does not.

My Home Assistant setup does things visitors actually notice: light color temperature that shifts with the sun position throughout the day, and retro-style dashboards running on old iPads mounted around the house. Under the hood: autonomous irrigation with fail-safe fallbacks and UPS monitoring with automatic alerts. Most of it is not public yet - still removing hardcoded keys and writing real docs.

Currently learning Meshtastic for off-grid monitoring in rural areas where cellular coverage is unreliable.

ha-hot-water-circulation Pump monitoring for a hot water recirculation system using a $50 smart plug and native Home Assistant sensors only. Statistical calibration, rate-of-change inrush filtering, predictive wear detection.

ha-entities-for-claude Gives Claude Code real knowledge of your Home Assistant entities - a dependency-free script that reads HA's JSON registries, plus a ready-made agent skill.

adhd-flow Personal productivity system for ADHD - Claude + Google Tasks + Google Calendar. Replaced a paid subscription with a workflow that fits how my brain works.

echoS3R-pyramid ESPHome config for the M5Stack Echo Pyramid + Atom EchoS3R. Includes patched component files for pyramid RGB and custom microWakeWord models. Fork with upstream fixes.

CardputerADV-NFC NFC tag reader, emulator, and writer for the M5Stack Cardputer ADV with the ST25R3916 module. Reads NFC-A cards, saves them to SD, emulates saved cards, and writes NDEF records to blank tags (Home Assistant, labels, digital business cards).

MP3PlayerForM5CardputerEQ M5Cardputer MP3 player with a 7-band software equalizer - real-time DSP on every audio sample. Fork of sanchitminda player.

Home Assistant - ESPHome - ESP32 - M5Stack - Python - YAML - Claude Code - Meshtastic

• ha-irrigation-esp32: autonomous irrigation, standalone operation if HA goes down
• ha-ups-monitor: power failure detection with automatic alerts

Sao Paulo - silasgubi@gmail.com