Devices / Smart home & cameras / OpenDTU Software for ESP32 to talk to Hoymiles/TSUN/Solenso

OpenDTU Software for ESP32 to talk to Hoymiles/TSUN/Solenso firmware

Name: OpenDTU Software for ESP32 to talk to Hoymiles/TSUN/Solenso firmware
Author: OpenDTU

current

The OpenDTU Software for ESP32 to talk to Hoymiles/TSUN/Solenso is tracked under smart home & cameras. Its latest firmware, 26.3.30, shipped on Mar 30, 2026.

Latest firmware: 26.3.30
Released: Mar 30, 2026
Category: Smart home & cameras
Last checked: Sep 16, 2026

How to update the OpenDTU Software for ESP32 to talk to Hoymiles/TSUN/Solenso

Open update page ↗

Read the release notes first — self-hosted projects break config and schemas between versions more often than appliances do.
Docker: pull the new image tag and recreate the container (`docker compose pull && docker compose up -d`).
Package or bare metal: update through your distribution's package manager, or replace the binary from the releases page.
Back up the config and database directory first. For most projects a downgrade is not supported once the schema has migrated.

Always download firmware from the manufacturer or project itself. Firmwarely links out; it never hosts firmware.

What changed

🐛 Fixes Fix: WebSocket endpoints missing setAuthType for digest authentication 🌎 Web Application webapp: Add response error handling to getTimezoneList() webapp: add app.js.gz 🛠 Under the hood Adjusted copyright information Merge branch 'pr3008' into dev

Manufacturer release notes ↗

Version history

26.3.30

Mar 30, 2026

FAQ

What is the latest firmware for the OpenDTU Software for ESP32 to talk to Hoymiles/TSUN/Solenso?

Version 26.3.30, released Mar 30, 2026. This page is refreshed every hour from the manufacturer's release page.

How do I update the OpenDTU Software for ESP32 to talk to Hoymiles/TSUN/Solenso?

See the step-by-step above. Updates usually arrive through the manufacturer's phone app or roll out automatically. Open the device's settings in the app and look for a firmware or software section.

How does Firmwarely know when there's a new version?

Every hour we read the manufacturer's official release page for the OpenDTU Software for ESP32 to talk to Hoymiles/TSUN/Solenso and record the version, date and changelog. Subscribers watching this device get one email a day when it changed.

Is this an official OpenDTU page?

No. Firmwarely is independent. Device and brand names belong to their manufacturers; always download firmware from the official source.