Is it possible to develop an app that will generate NFC pulses even when the screen is off?

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Is it possible to develop an application that will generate NFC pulses even when the screen is off?

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No, it’s typically not possible to generate NFC pulses when the screen is off due to power-saving measures and hardware limitations in most mobile devices. NFC requires active power and typically involves interactions initiated by the user or system. Operating NFC while the screen is off could drain the battery quickly and pose security risks.