# OpenDTU — Open-Source Solar Inverter Monitoring

> Replaces Hoymiles, TSUN, and Solenso cloud gateways with a privacy-respecting local solar inverter monitor — real-time power data via MQTT and web UI on an ESP32 with wired Ethernet support.

## Details

- **Difficulty:** beginner
- **Project Type:** integration
- **Board Types:** ESP32, ESP32-S3
- **Devices:** lilygo-t-internet-poe, lilygo-t-eth-lite
- **Firmware:** Arduino, PlatformIO, MQTT, Home Assistant
- **Use Cases:** Energy Monitoring, Home Automation, Network Infrastructure, Data Logging
- **Links:** Github Url: https://github.com/tbnobody/OpenDTU

## Tags

`solar`, `opendtu`, `hoymiles`, `inverter`, `energy`, `monitoring`, `mqtt`, `ethernet`, `poe`, `home-assistant`

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