2025.01.10

🚨 Partition Layout Change

Coming from firmware version 2024.06.03 or older *1), you cannot upgrade to this release (or any future release) by performing an over-the-air (OTA) update using the web interface! Read and follow the upgrade instructions, where additional information is available as well.

If you upgraded to version 2024.08.18 or newer already *2), you should be good to perform an OTA update using the web interface (unless you are using the generic_esp32_4mb_no_ota firmware variant).

*1) Technically: If you are still using the "old" partition layout where the sketch size is only 1,920 kB. See Info -> System in the web UI to know your current sketch size.
*2) Only when upgraded using the respective .factory.bin image over a wired connection to the ESP32, such that the partition layout was actually updated alongside the firmware.

Upstream

This release includes upstream OpenDTU v24.11.7.

⚡ Breaking Changes

• BREAKING CHANGE: remove default scaling/compensation for unused inputs
• BREAKING CHANGE: huawei grid charger with MCP2515 requires IRQ pin

🚀 Features

• Support for Huawei AC charger using the CAN Transceiver on OpenDTU Fusion CAN/Iso shield.
  • Feature: huawei grid charger: support serial CAN controller (Conflicts with CAN-based battery providers!)
• Support for HMS-1600/-1800/-2000 inverters with firmware 01.01.12
  • Feature: Detect if inverter supports 'Power Distribution Logic'
• Mitigate overscaling issues when used with "solar-passthrough batteries".
  • Feature: support configuration of the input power threshold for overscaling per inverter
  • Feature: Input power threshold for maxIncrease is less strict and respects the overscaling configuration per inverter
• Feature: show hint if device profile missing or not selected
• Feature: webapp: show hardware UART allocations
• Feature: hide inverter totals if no inverters configured
• Feature: webapp: warn about small lower power limits
• Feature: auto-detect SoC precision for MQTT Battery provider
• Feature: include MPPT power in debug log
• Feature: sub-second DTU poll interval resolution

🐛 Fixes

• Fix: wait for inverter stats before doing full solar-passthrough
• Fix: use battery when in full solar-passthrough
• Fix: need to skip BOM also when migrating config
• Fix: rename solar-passthrough losses to conduction losses
• Fix: DPL: proactively set known limit on inverters
• Fix: Huawei AC charger sends signed values
• Fix: webapp: DPL: config hint only for governed inverters
• Fix: wrong usage of 'isSunsetAvailable'
• Prevent solar powered inverters from getting stuck at low limits
  • Fix: Don't check shading for max increase when inverter limit is below 15%
  • Fix: assume small increase for shaded inverter
  • Fix: maxIncrease for solar inverter with PDL
  • Fix: maxIncrease for overscaling solar inverter
• Setups without a solarcharger interface configured will not try to do full-solar-passthrough
  • Fix: disable solar_passthrough_enabled by default
  • Fix: check config.Vedirect.Enabled for passthrough
• Fix: huawei grid charger: prevent deadlock on mutex

🌎 Web Application

• webapp: avoid undefined serial for InputSerial
• webapp: DPL: clean up obsolete language tokens
• webapp: DPL: use new terminology "governed" inverters
• webapp: show OpenDTU-OnBattery-specific config version
• webapp: improve styling of hints on home view
• webapp: allow to reduce MQTT publish interval down to 1 second
• webapp: add "-OnBattery" in "NotReady" language token
• webapp: fix warning message about pin mapping profile name length
• webapp: define pin mapping interface for Huawei and PowerMeter
• webapp: add proxy for /huaweilivedata location
• webapp: show precise data age for inverters

🛠 Under the hood

• DPL: beautify log by considering plural for amount of inverters
• DPL: optimize verbose logging output
• config.json: remove skipping BOM a second time
• introduce and use ConfigurationClass::migrateOnBattery()
• DPL: cache load-corrected voltage
• github actions: switch to ubuntu-24.04
• power meter serial SDM: whitespace/style cleanup
• delete .DS_Store
• match file "COPYING" to OpenDTU-OnBattery
• huawei grid charger: split controller and CAN driver
• huawei grid charger: make MCP2515 driver private to controller
• huawei grid charger: whitespace cleanup
• huawei grid charger: clean up #defines
• huawei grid charger: web API: remove unreachable code
• huawei grid charger: start HW interface abstraction
• huawei grid charger: prepare to accept tx and rx pin config
• huawei grid charger: de-duplicate config (de)serialization
• huawei grid charger: merge common code in base class
• huawei grid charger: avoid reboot on settings change
• huawei grid charger: revise message outputs
• huawei grid charger: TWAI: asynchronously poll for messages
• huawei grid charger: remove unused parameter
• huawei grid charger: use DataPointContainer
• huawei grid charger: do not include FreeRTOS headers
• huawei grid charger: clean up main's setup() function
• huawei grid charger: rename setting to "TWAI" rather than "VP230"
• huawei grid charger: simplify task name in web UI
• huawei grid charger: always allow setting offline settings
• generalize feature "VE.Direct" to "Solar Charger" (#1442)