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Innkeep
A hotel PMS SaaS — run your whole hotel from one screen.
02 — Home solar PWA
Solar MonitorLive solar data, from roof to pocket.
A monitoring PWA for a home solar setup. An ESP32 running ESPHome reads the MPPT charge controller and posts readings to Supabase every 30 seconds, and the app shows live production, history charts and battery trends, works offline, and sends Telegram alerts.
Visit live site ↗- Type
- Personal IoT project + PWA
- Hardware
- ESP32 running ESPHome
- Data
- Readings to Supabase every 30 seconds
- Alerts
- Telegram bot
Architecture
From charge controller to phone
- 01
MPPT controller
The solar charge controller is the source of every reading.
- 02
ESP32 + ESPHome
Reads the controller and posts readings every 30 seconds.
- 03
Supabase
Stores readings and serves live and historical data.
- 04
PWA
React + Vite app for live production, history and battery trends.
- 05
Telegram
Alerts pushed through a Telegram bot.
What it does
Everything at a glance, even offline
- Live
Live production
Current solar output as new readings arrive.
- History
History charts
Production over time, at a glance.
- Battery
Battery trends
How the battery charges and drains.
- Offline
Works offline
An installable PWA that keeps working without a connection.
- Alerts
Telegram alerts
Notifications delivered through a Telegram bot.
- Stack
TypeScript + React
Built with Vite, Supabase and ESPHome.
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06 — Let’s talk
Hiring, or have something to build?Let’s talk.
I’m open to full-time frontend roles and freelance projects. Tell me what you’re working on and I’ll get back to you soon.