NumiTron Solar sits on top of the G0 (STM32G071) inverter platform and keeps the numbers that actually matter — output power, AC quality, battery state — in front of you, with the ability to switch the unit on or off from anywhere.
From bare PCBs to finished units on a roof — this is the actual G0 platform NumiTron Solar watches.
Each unit gets its own device key. Link it, watch it, and switch it on or off — nothing shared between accounts.
Output power, AC voltage/frequency, current, battery voltage & SOC, and temperature, refreshed every 2 seconds.
View telemetry →Telemetry and controls sit behind session login and bcrypt-hashed passwords — nothing about a unit's state is public.
Create an account →Link any number of inverters to your account with a pre-issued device key — each one keeps its own history.
Manage devices →Switch a unit's output on or off from the dashboard — enabling always requires re-entering your password first.
See it in action →STM32G071RB / Cortex-M0+
Ported from a field-proven TI F2809 inverter application, running the same control loop discipline on a smaller core.
ESP32 UART bridge (planned)
Each device authenticates with a fixed key over HTTP — the same contract the mock data generator uses today.
Session login, bcrypt-hashed
Telemetry is gated behind an account, and enabling a unit's output requires re-authenticating.
MariaDB, self-hosted
Readings, accounts, and devices live in a local database on the same host that serves this site.
Create an account, claim a device with its key, and start watching it live.