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Firmware info + supported devices list

Firmware information for STC-dS

Current version Release Notes
released 2022-03-22

Firmware 2.6.4 for P44-DSB devices is a maintenance release for firmware release 2.6. It essentially releases support for an upcoming hue bridge update, and includes some general improvements and bug fixes.

General Recommendation for updates: before updating, please always use the "Download configuration backup" button to download a backup of your device's configuration.

Improvements since production version 2.6.1


  • Ready for upcoming hue bridge firmware release (expected for Q2/2022) which removes SSDP method for finding hue bridge in the local network. New method is DNS-SD (also called Bonjour, mDNS, ZeroConf). SSDP is still supported for old (round) hue bridges.


  • Fixed F6-05-02 smoke detector learn-in.


  • Fixed bugs that could occur in some edge cases such that scene transitions would not work as expected.
  • Web-UI: Fixed custom transition time scene effect to show the parameter field, so transition time can actually be edited.
  • Internal Action Evaluator trigger conditions are now re-evaluated after action script has run to detect script side effects (such as changing a script variable) that might be needed to reset the trigger condition.
  • Shadow devices should now get proper UI in digitalSTROM (added resp. modelfeatures)
  • Support for new p44-mini-e+l hardware platform.


  • Scene operations now have a text description for the scene involved (such as "preset 1" for scene number 5).
  • There is now a toggle to have log display wrap long lines
  • Better error display showing not only numeric error code, but also name text.


  • restartapp() now can optionally also reboot, shutdown or start a firmware upgrade.
  • Fixed inconsistencies in member access, for example assigning variables via globalvars()['name'] = xx.
  • New functions isok()ifok() to catch errors for example when accessing data fields, strrep() for creating string with repeating patterns.
  • random() function can now deliver discrete values in a specified interval, such as integers, halves etc.
  • signal() now can send data, which allows using it as a "pipe" to transmit information between different script contexts and threads.
  • User defined functions can now be created as "local function" to keep them private to the context (e.g. device, mainscript) instead of exposing them globally. Also, for clarity, functions may now be declared "global function".
  • New functions maxblocktime() and maxruntime() for controlling script execution time slice and overall max run time.
  • Fixed crash that could happen when run time error occurred within nested function calls.
  • httprequest() now allows accessing servers using basic auth (because that is needed by some IoT hardware not capable of digest auth). By default, httprequest() does not suggest basic auth and allows it only in SSL connections when the server asks for it.
  • Internal: the event passing mechanism (on which on(..) {...} is based) has been significantly improved and generalized. This also fixes a few edge cases that could cause inconsistencies with events in too rapid succession.
  • Webserver: now allows (but never requests) accessing via http basic auth. This allows IoT hardware not capable of digest auth to still access the web API. Note that basic auth risks exposing the password when used without https/TLS.
  • API endpoint `/api/json/scriptapi` which can be activated via p44script is now accessible without `rqvaltok`token.
  • Special Hardware Support: now direct access to i2c, SPI and modbus peripherals is possible from p44script (userlevel >=1 required)

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