Native Capacitive Sensor on GPIO

Hello folks,

I just read some threads on the forums and I read this …

I wonder, if it’s possible, to solder a cable to one of the GPIO ports and, if touched, I can trigger something. In my case that would be playing a mp3 file with VS_1053 (which is also the reason, why I don’t have any pins free for this capacitive sensor).

Could anyone please help?

Thanks in advance for your guidance and kindest regards!