This knowledge-base explains how to use GPIO library to generate a 0.5 Hz pulse on a pin.
I downloaded the library for VF61 module from here, and I see the recommendation to use the new updated library for VFxx.
I think that the source code of the KB example refers to the old library, because I see the following functions:
but in the updated library I find
Could you confirm this?
Could you update the KB demo example to use the new library for VFxx?