Another cool little thing that can be very easily achieved with XNO - triggering an arduino to do something in response to an account receiving a specified amount.

With a bit of work this might turn into a little Nano Gumball machine.

Besides the obvious cases, like vending machines and retail, one can use this trick to trigger a controlled actions remotely too. For example, a streamer can have a dog-treat dispenser and people can give the dogs treats by sending XNO (with a rate limit to not over-feed the dog) - or for those Live Cameras in zoos. It is so much much easier to program these things with Nano than with bank transfers…