Is there any sample code that detects peripheral data events and draws the screen?

[Peitaka]

Is there any sample code that detects peripheral data events and draws the screen?

We are trying to connect an automatic change machine to StoreCommerce to detect data events from the automatic change machine and reflect them on the screen, but have not been able to do so successfully.

Is there any publicly available code that would be helpful?

Thank you in advance.