The Platform — Beyond the Sleep Lab

At its core CozZie Glow is a modular, web interfaced, data logger and peripheral control
platform. It started as a sleep lab. It doesn't have to be.

The core is simple: a Pi running headless, a Flask web interface, serial control of physical
hardware, data logging, and remote access via Tailscale. The application is whatever you point
it at.

A Pi Zero W on the porch with a Dallas temperature sensor, a pressure module, a humidity
sensor, a home built anemometer and rain gauge — that is a data logging weather station with a
remote web interface. Same base. Different mods. BOOM.

The modular design is what makes this a hobbyist dream. You don't need to understand the
whole system to contribute. You need an idea for a sensor or a feature, the module template to
follow, and enough curiosity to try. Each module is self-contained. Drop the file in the modules
directory, restart the app from the web interface, and it appears. No core modifications required.

CozZie Glow is open source because it belongs to anyone who needs it. It is built on hardware
every electronics hobbyist already owns. The module template means the barrier to contribution
is low. The community is the next step.

Recommended Hardware

Start here: Raspberry Pi Zero W — base system, thermal monitoring, alarm, light control,
health logging, weather integration. $15. Runs beautifully.

Upgrade when the mods demand it: Raspberry Pi 4 — camera mod, audio DVR, processor
intensive modules.

The migration path is seamless. Start on the Pi Zero W. When you outgrow it — pull the SD
card, slide it into the Pi 4, update, done. Same OS. Same Flask base. Same mods. Same

config. Nothing lost. Nothing reinstalled.

CozZie Glow doesn't care which Pi it runs on.