FirmataDecive does not work any more

FirmataDecive does not get ready in version
because FirmataConfig is not valid

same setting worked in version 2021.3.3, 2021.3.2, 2021.3.1

Same probleme here.
See also this thread

Indeed, thanks. Turns out the target code generated by the compiler in 2021.4 is actually correct while it wasn’t in earlier versions. If you can’t wait on a new preview build, the fix is rather easy, you need to add a Create [FirmataConfig] inside the FirmataDevice patch:


Or simply wait on a new build - VL.IO.Firmata 1.0.2 will contain this fix.

Merci. It works.