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Multi-platform IoT firmware supporting up to 32 platforms - OBK 2025 summary

p.kaczmarek2 4668 96

TL;DR

  • OpenBeken/OBK is an open-source Wi‑Fi firmware for building-automation devices like relays, LED controllers, thermostats, energy meters, and sensors.
  • It flashes over UART, then uses auto-detected GPIO templates, Berry scripting, Home Assistant integration, REST hosting, and a simulator to speed setup and testing.
  • The project now supports 32 platforms and lists 817 devices, with separate binaries for families such as BK7231, ESP32 variants, Realtek, Winner Micro, and more.
  • Online builds, automatic OTA downloads from GitHub, and GitHub-run tests let developers compile, deploy, and flag bad commits without local toolchains.
  • Some platform features still vary: certain OTA paths are broken, WPA3 must be manually enabled on some ESP8266 builds, and several PWM or sleep features are partial.
AI summary based on the discussion. May contain errors.
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  • Btn_pd_n missing from GD32 button handling

    #91 21914518
    divadiow
    Level 38  
    Posts: 5195
    Help: 446
    Rate: 913
    p.kaczmarek2 wrote:
    OK CDC variant merged

    cool

    p.kaczmarek2 wrote:
    we shouldn't overwrite anything

    not sure what you mean though, the only thing being overwritten is LFS now with every OTA with how it's currently configured.

    I was just trying to get the button working on the GD32 (active high) with role Btn_pd_n but it didn't seem to be effective at all. dInput_pd_n was registering button changes though. Seems Btn_pd/n is missing here? https://github.com/openshwprojects/OpenBK7231T_App/pull/2118/changes

    Added after 5 [minutes]:

    p.kaczmarek2 wrote:
    so will you post it? I can help if needed.


    feel free to add/amend anything
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  • #92 21914635
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14743
    Help: 659
    Rate: 12839
    divadiow wrote:

    not sure what you mean though, the only thing being overwritten is LFS now with every OTA with how it's currently configured.

    ARe you sure new LFS position is 100% safe? No Tuya data there?

    divadiow wrote:

    feel free to add/amend anything

    Great post!
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  • Btn_pd/n support added for GD32 button roles

    #93 21914692
    divadiow
    Level 38  
    Posts: 5195
    Help: 446
    Rate: 913
    p.kaczmarek2 wrote:
    ARe you sure new LFS position is 100% safe? No Tuya data there?


    LFS start was moved to end of OBK OTA slot instead of it being at the start. I'll confirm.

    divadiow wrote:
    I was just trying to get the button working on the GD32 (active high) with role Btn_pd_n but it didn't seem to be effective at all. dInput_pd_n was registering button changes though. Seems Btn_pd/n is missing here? https://github.com/openshwprojects/OpenBK7231T_App/pull/2118/changes


    now added more relating to Btn_pd/n

    IOR_Button_pd / IOR_Button_pd_n in PIN_IOR_NofChan()
    IOR_Button_pd / IOR_Button_pd_n in Button_OnDoubleClick()
    IOR_IRRecv_nPup in the zero-channel role list

    https://github.com/openshwprojects/OpenBK7231...nges/4945c02a18cb1868dd4fa3cdb391a686465322de
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  • #97 21929595
    p.kaczmarek2
    Moderator Smart Home  
    Posts: 14743
    Help: 659
    Rate: 12839
    It looks like a left over from long commands support debugging
    Code editor screenshot showing C function http_fn_cmd_tool with http_html_start and poststr calls
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FAQ

TL;DR: OBK supports 32 platforms and lists 817 devices; “firmware is fully open source.” Flash via UART, test in a PC simulator, and integrate with Home Assistant. [Elektroda, p.kaczmarek2, post #21794531]

Quick Facts

What is OpenBeken (OBK) and who should use it?

OBK is an open‑source firmware for Wi‑Fi IoT devices like relays, LEDs, thermostats, and meters. It targets users who want local control, added sensors, scripting, HA integration, and freedom from vendor clouds. The author states it is “fully open source, free.” [Elektroda, p.kaczmarek2, post #21794531]

Which chips and platforms are supported right now?

As of December 31, 2025, OBK ships binaries for about 32 platforms, including Beken BK7231/T/N/38/52, Espressif ESP8266/ESP32 families, Realtek Ameba series, Bouffalo BL602, Winner Micro W600/W800, XRadio XR806/XR809, Lightning Semi LN882H, ESWIN ECR6600, and others. Check the platforms matrix and linked docs. [Elektroda, p.kaczmarek2, post #21794531]

How do I flash OBK via UART?

You upload the firmware over UART using a USB‑to‑UART adapter and the BK7231 GUI Flash Tool. After flashing, join Wi‑Fi and configure GPIOs. The flasher can auto‑detect GPIO on many devices, reducing guesswork versus Tasmota. 1. Connect UART pins and power. 2. Use the GUI tool to write the binary. 3. Join Wi‑Fi and set roles. [Elektroda, p.kaczmarek2, post #21794531]

Can I run devices 100% locally without any cloud?

Yes. A core goal is freedom from vendor clouds and surveillance. After flashing, devices work fully offline, with local control, REST, MQTT, and HA connectivity. This avoids outages, surprise subscriptions, and vendor lock‑in. The author lists cloud independence as a key motivation. [Elektroda, p.kaczmarek2, post #21794531]

Does OBK integrate with Home Assistant and MQTT?

Yes. OBK connects to Home Assistant without limits and supports MQTT. The simulator even pairs with Home Assistant, letting you validate virtual devices before flashing hardware. This streamlines testing scenes, sensors, and lighting. [Elektroda, p.kaczmarek2, post #21794531]

How do online builds and automatic OTA updates work?

You can compile firmware entirely online via GitHub CI, so no local toolchain is needed. An OBK OTA tool can fetch artifacts on each build and update target devices automatically, including from pull requests and commits. “Build online, deploy OTA” describes the workflow. [Elektroda, p.kaczmarek2, post #21794531]

Is there a PC simulator for designing and testing devices?

Yes. The OBK Simulator for Windows/Linux implements a HAL with a visual schematic editor. You can test advanced circuits, Berry scripts, and HA pairing on your computer. Automatic tests also run on GitHub; failing commits get flagged. [Elektroda, p.kaczmarek2, post #21794531]

How many ready device templates or articles exist?

The community device list shows 817 entries dated 2025‑12‑31. You can filter by platform and by template versus full article. This accelerates onboarding and reduces wiring mistakes. [Elektroda, p.kaczmarek2, post #21794531]

What scripting language and automations does OBK support?

OBK supports Berry scripts across target hardware and in the Simulator. You can add logic, timers, and behaviors without recompiling. The driver list includes complex automations like PixelAnim, DMX, shutters, IR, and data logging helpers. [Elektroda, p.kaczmarek2, post #21794531]

Can OBK host custom web pages and a REST API on the device?

Yes. OBK integrates LFS file storage and a REST interface. You can build HTML/JS control panels, with optional GZIP compression to fit more content. This enables fast local dashboards without external servers. [Elektroda, p.kaczmarek2, post #21794531]

Any known OTA or platform edge cases I should watch out for?

Yes. Examples: XR809 OTA attempts crash the device; ESP8266 uses software PWM and may flicker; some bootloaders block OTA on certain Tuya BK7252 units; web‑based OTA can be corrupted on some chips, so use HTTP OTA instead. Review notes before updating. [Elektroda, p.kaczmarek2, post #21794531]

Does OBK support WPA3 and low‑power modes?

WPA3 support exists on many platforms, sometimes requiring specific ALT builds or sdkconfig flags. Deep sleep varies by MCU; some support only timed sleep and lack GPIO wake. Always check the platform table footnotes when planning battery builds. [Elektroda, p.kaczmarek2, post #21794531]

What drivers and sensors are already supported?

The list includes TuyaMCU (regular and battery), DMX, WS2812 animations, IR/RF, energy chips (RN8209, BL0942, HLW8112), environmental sensors (SHT3X, BMP280, DS18B20), LED drivers (SM2135, BP5758D), displays (MAX72XX, TM1637), shutters, and many more. “Drivers keep expanding.” [Elektroda, p.kaczmarek2, post #21794531]

What do terms like TuyaMCU, OTA, and Berry mean in OBK context?

In OBK, TuyaMCU denotes the driver family for Tuya‑based devices, including battery variants. OTA refers to updating firmware from built artifacts without disassembly. Berry is the embedded scripting language used by OBK and its Simulator. [Elektroda, p.kaczmarek2, post #21794531]

How do I contribute, request drivers, or support OBK?

Share device findings, propose drivers, or test platforms using the GitHub and forum links. You can also support development via the provided PayPal link. The author invites sensor and platform suggestions and thanks major contributors. [Elektroda, p.kaczmarek2, post #21794531]
AI summary based on the discussion. May contain errors.
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