Hands-on builds from the workshop — where ideas get wired, coded, and run before they ever reach a client engagement. Consulting case studies live separately under Case studies.
One firmware image for every device: auto-registration via API, GPIO configuration from a local database, and MQTT to Home Assistant. Privacy-first automation with zero cloud dependencies.
Stack: Pico W, MicroPython, MQTT, MariaDB, REST API, Home Assistant
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A legacy charger re-engineered with a Pico W: voltage dead-band relay control, PWM cooling, solar sync to sun-tracked panels, and MQTT telemetry in Home Assistant.
Stack: Pico W, MicroPython, MQTT, Home Assistant
These builds prove patterns I use with clients — local MQTT, spare hardware, and custom devices when off-the-shelf gear falls short. For client-facing work, see the Denon AVR-3805 case study and services.
