Feature/Build Help: Add Modbus TCP Server to HeishaMon + working platformio.ini for Windows

[ReinhardGruber]

Summary
I’d like to extend HeishaMon with a Modbus TCP Server (to simplify integration with systems like Loxone). To prototype this, I need to build the firmware locally. I’m stuck getting the project to compile with PlatformIO on Windows.

What I’m trying to do:
Build HeishaMon locally (Windows 11) and then add a Modbus TCP Server.
Target device: ESP32-S3 DevKitC-1 (N8, no PSRAM) – only the “large” build is needed.

Where I’m stuck:
I don’t have a working platformio.ini for this repo/environment on Windows.
I also tried the PIO Arduino integration in VS Code, but no luck.

Environment:
Windows 11
VS Code + PlatformIO (pioarduino)

(Tried Arduino Core 3.x too; ran into ESP32 Ethernet API changes vs. older code)

Ask:
Does anyone have a known-good platformio.ini for building HeishaMon (large) on Windows for ESP32-S3 DevKitC-1?
If ESP32 core 2.0.17 (older Ethernet API) is required, could you share the exact platform/framework-arduinoespressif32 pins that work?
Any build flags or lib versions I should lock to avoid ETH.hasIP()/W5500 API breakage?

Why this matters:
Once I can build reliably, I’ll open a clean PR adding a Modbus TCP Server (configurable port, basic holding/input registers, and a minimal map for the main HeishaMon datapoints).

Thanks!

[geduxas]

You should fallow GitHub workflow for compilation.. i done same (platform Io)with small one. And everything worked. OS indeed not matters

[geduxas]

here is ini file which build's heishamon, but not tested if everything is ok, just compiles source:

[platformio]
src_dir = ./HeishaMon/

[env:esp32]
platform = https://github.com/pioarduino/platform-espressif32.git#51.03.07
board = esp32-s3-devkitc-1
framework = arduino
board_build.psram = enabled
board_build.partitions = min_spiffs.csv
monitor_speed = 115200
build_flags = 
	-DARDUINO_BOARD="esp32:esp32:esp32s3"
	-DBOARD_HAS_PSRAM
	-DCORE_DEBUG_LEVEL=0
	-DDEBUG_ESP_PORT=Serial
	-DARDUINO_ETH_INCLUDE
lib_deps = 
	ringbuffer
	pubsubclient
	bblanchon/ArduinoJson
	milesburton/DallasTemperature
	paulstoffregen/OneWire
	adafruit/Adafruit NeoPixel
	

[ReinhardGruber]

I’m building with PlatformIO (Arduino core 3.x). Target module: ESP32-S3-MINI-1 N4R2 (4 MB flash). I set the flash size to 4 MB, but the device goes into a reboot loop with a LoadProhibited panic. Used settings: - board_build.flash_size = 4MB - board_upload.maximum_size = 4194304 # (legacy, added just in case) Rebooting... ESP-ROM:esp32s3-20210327 Build:Mar 27 2021 rst:0xc (RTC_SW_CPU_RST),boot:0x2b (SPI_FAST_FLASH_BOOT) Saved PC:0x4037c07a SPIWP:0xee mode:DIO, clock div:1 load:0x3fce3818,len:0x109c load:0x403c9700,len:0x4 load:0x403c9704,len:0xb50 load:0x403cc700,len:0x2fe4 entry 0x403c98ac Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled. Core 1 register dump: PC : 0x400556b4 PS : 0x00060230 A0 : 0x8202adc1 A1 : 0x3fcebac0 A2 : 0x00000001 A3 : 0xfffffffd A4 : 0x000000ff A5 : 0x0000ff00 A6 : 0x00ff0000 A7 : 0xff000000 A8 : 0x8202a1f8 A9 : 0x3fceba90 A10 : 0x3fc96460 A11 : 0x3c117200 A12 : 0x00000006 A13 : 0xffffffff A14 : 0x00ff0000 A15 : 0xff000000 SAR : 0x00000000 EXCCAUSE: 0x0000001c EXCVADDR: 0x00000001 LBEG : 0x400556d5 LEND : 0x400556e5 LCOUNT : 0xfffffffe Backtrace: 0x400556b1:0x3fcebac0 0x4202adbe:0x3fcebad0 0x4202aec5:0x3fcebaf0 0x42026fd3:0x3fcebb10 0x42006856:0x3fcebc10 0x4202ea2b:0x3fcebc70 0x40380faa:0x3fcebc90 ELF file SHA256: 141faac97ec0e2d7 thanks

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________________________________ Von: geduxas ***@***.***> Gesendet: Freitag, 17. Oktober 2025 10:22 Bis: Egyras/HeishaMon ***@***.***> Cc: Gruber Reinhard ***@***.***>; Author ***@***.***> Betreff: Re: [Egyras/HeishaMon] Feature/Build Help: Add Modbus TCP Server to HeishaMon + working platformio.ini for Windows (Discussion #728) here is ini file which build's heishamon, but not tested if everything is ok, just compiles source: [platformio] src_dir = ./HeishaMon/ [env:esp32] platform = https://github.com/pioarduino/platform-espressif32.git#51.03.07 board = esp32-s3-devkitc-1 framework = arduino board_build.psram = enabled board_build.partitions = min_spiffs.csv monitor_speed = 115200 build_flags = -DARDUINO_BOARD="esp32:esp32:esp32s3" -DBOARD_HAS_PSRAM -DCORE_DEBUG_LEVEL=0 -DDEBUG_ESP_PORT=Serial -DARDUINO_ETH_INCLUDE lib_deps = ringbuffer pubsubclient bblanchon/ArduinoJson milesburton/DallasTemperature paulstoffregen/OneWire adafruit/Adafruit NeoPixel — Reply to this email directly, view it on GitHub<#728 (reply in thread)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AAX5JPNCIBL7ZIS2TP3YV733YCRL5AVCNFSM6AAAAACJIL4T3GVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTINZQG4ZDANY>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[ReinhardGruber]

without "board_build.psram = enabled" the board is booting

[js-ed]

Dear Reinhard , I would really appreciate thi feature . Modbus is more convenient way of communicating with PLCs
Can I get copy of the firmware file including MODBUS ?
Jürgen

[ReinhardGruber]

Hi now i have the correct settings (memory_type = qio_qspi). may you can add to the master branch? thanks [platformio] src_dir = ./HeishaMon/ [env:esp32] platform = https://github.com/pioarduino/platform-espressif32.git#51.03.07 board = esp32-s3-devkitm-1 framework = arduino board_upload.flash_size = 4MB board_upload.maximum_size = 4194304 board_build.partitions = min_spiffs.csv board_build.arduino.memory_type = qio_qspi monitor_speed = 115200 build_flags = -DBOARD_HAS_PSRAM -DCORE_DEBUG_LEVEL=0 -DDEBUG_ESP_PORT=Serial -DARDUINO_ETH_INCLUDE -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 lib_deps = ringbuffer pubsubclient bblanchon/ArduinoJson milesburton/DallasTemperature paulstoffregen/OneWire adafruit/Adafruit NeoPixel

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________________________________ Von: geduxas ***@***.***> Gesendet: Freitag, 17. Oktober 2025 10:22 An: Egyras/HeishaMon ***@***.***> Cc: Gruber Reinhard ***@***.***>; Author ***@***.***> Betreff: Re: [Egyras/HeishaMon] Feature/Build Help: Add Modbus TCP Server to HeishaMon + working platformio.ini for Windows (Discussion #728) here is ini file which build's heishamon, but not tested if everything is ok, just compiles source: [platformio] src_dir = ./HeishaMon/ [env:esp32] platform = https://github.com/pioarduino/platform-espressif32.git#51.03.07 board = esp32-s3-devkitc-1 framework = arduino board_build.psram = enabled board_build.partitions = min_spiffs.csv monitor_speed = 115200 build_flags = -DARDUINO_BOARD="esp32:esp32:esp32s3" -DBOARD_HAS_PSRAM -DCORE_DEBUG_LEVEL=0 -DDEBUG_ESP_PORT=Serial -DARDUINO_ETH_INCLUDE lib_deps = ringbuffer pubsubclient bblanchon/ArduinoJson milesburton/DallasTemperature paulstoffregen/OneWire adafruit/Adafruit NeoPixel — Reply to this email directly, view it on GitHub<#728 (reply in thread)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AAX5JPNCIBL7ZIS2TP3YV733YCRL5AVCNFSM6AAAAACJIL4T3GVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTINZQG4ZDANY>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[ReinhardGruber]

Hi Jürgen, Here’s the current status of my repo: https://github.com/ReinhardGruber/HeishaMonModbusTCP * Reading: works. * Writing: not tested yet. If you have time, please verify the write access. Feedback or issues in the repo (fork) are welcome. Thank you, Reinhard Gruber

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________________________________ Von: js-ed ***@***.***> Gesendet: Donnerstag, 30. Oktober 2025 20:12 Bis: Egyras/HeishaMon ***@***.***> Cc: Gruber Reinhard ***@***.***>; Author ***@***.***> Betreff: Re: [Egyras/HeishaMon] Feature/Build Help: Add Modbus TCP Server to HeishaMon + working platformio.ini for Windows (Discussion #728) Dear Reinhard , I would really appreciate thi feature . Modbus is more convenient way of communicating with PLCs Can I get copy of the firmware file including MODBUS ? Jürgen — Reply to this email directly, view it on GitHub<#728 (reply in thread)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AAX5JPLJTNPNVAU4DHXWA3332JPI7AVCNFSM6AAAAACJIL4T3GVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTIOBTGA2DSMA>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[ReinhardGruber]

[cid:65d7847d-c3c8-4bac-ab1b-2968db24133f] <img width="1889" height="921" alt="image" src="https://github.com/user-attachments/assets/194fa312-e20b-44d3-a4a9-c7fea67e46fc" />

…

________________________________ Von: js-ed ***@***.***> Gesendet: Donnerstag, 30. Oktober 2025 20:12 An: Egyras/HeishaMon ***@***.***> Cc: Gruber Reinhard ***@***.***>; Author ***@***.***> Betreff: Re: [Egyras/HeishaMon] Feature/Build Help: Add Modbus TCP Server to HeishaMon + working platformio.ini for Windows (Discussion #728) Dear Reinhard , I would really appreciate thi feature . Modbus is more convenient way of communicating with PLCs Can I get copy of the firmware file including MODBUS ? Jürgen — Reply to this email directly, view it on GitHub<#728 (reply in thread)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AAX5JPLJTNPNVAU4DHXWA3332JPI7AVCNFSM6AAAAACJIL4T3GVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTIOBTGA2DSMA>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[js-ed]

Hallo , Wow, das ging aber schnell ! Welches binary soll ich laden ? HeishaMon.ino.esp32-v3.9.bin für meine large Heishamon Platine Danke für schnelle Antwort Jürgen Scharfe Dr. Jürgen Scharfe Mozartstr. 22 85435 Erding Tel. +49 8122 902216 Mobil +49 171 6232294 e-mai:l ***@***.*** Von: ReinhardGruber ***@***.***> Gesendet: Montag, 3. November 2025 12:09 An: Egyras/HeishaMon ***@***.***> Cc: js-ed ***@***.***>; Comment ***@***.***> Betreff: Re: [Egyras/HeishaMon] Feature/Build Help: Add Modbus TCP Server to HeishaMon + working platformio.ini for Windows (Discussion #728) [cid:65d7847d-c3c8-4bac-ab1b-2968db24133f]

…

________________________________ Von: js-ed ***@***.***<mailto:***@***.***>> Gesendet: Donnerstag, 30. Oktober 2025 20:12 An: Egyras/HeishaMon ***@***.***<mailto:***@***.***>> Cc: Gruber Reinhard ***@***.***<mailto:***@***.***>>; Author ***@***.***<mailto:***@***.***>> Betreff: Re: [Egyras/HeishaMon] Feature/Build Help: Add Modbus TCP Server to HeishaMon + working platformio.ini for Windows (Discussion #728) Dear Reinhard , I would really appreciate thi feature . Modbus is more convenient way of communicating with PLCs Can I get copy of the firmware file including MODBUS ? Jürgen — Reply to this email directly, view it on GitHub<#728 (reply in thread)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AAX5JPLJTNPNVAU4DHXWA3332JPI7AVCNFSM6AAAAACJIL4T3GVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTIOBTGA2DSMA>. You are receiving this because you authored the thread.Message ID: ***@***.***<mailto:***@***.***>> — Reply to this email directly, view it on GitHub<#728 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/BNCYOVUZIB7TIIAY6A3VFC3324ZVHAVCNFSM6AAAAACJIL4T3GVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTIOBVG4YDGNI>. You are receiving this because you commented.Message ID: ***@***.******@***.***>>

[js-ed]

Hi,
can't find a binary with Modbus in the repository
Currently I have 3.9 but it is older
I have no means of recompiling the entire binary
Thank for soring a binary on github
Jürgen Scharfe

[ReinhardGruber]

https://github.com/ReinhardGruber/HeishaMonModbusTCP/blob/master/binaries/model-type-large/HeishaMon.ino.esp32-v4.00ALPHA.bin

SetTopics -> Offset 1000 !!!!
SET11 SetDHWTemp -> Address 1011