HI,
my company is building a machine for returning reusable packaging.
Once the packaging is returned, the user reads with their smartphone an NFC chip that is on the machine.
Here’s our challenge: the NFC chip has to be readable only when activated for 10 seconds after returning packaging.
If a user goes to the machine without returning packaging, they should not be able to read the NFC.
Do you have any NFC chip that can be activate / deactivated by a board or something similar?
All it should do is detect the passage of something (photocell sensor?) and then activate the NFC for 8 seconds.