UNO: Sd + LCD + 4x4 Keypad + others

I am making a proof of concept work for my studies.

I was looking forward in using a 16x2 lcd, an SD card, and a 4x4 keypad and some other components tha only use 1 input such as (125khz rfid, and a buzzer).

I have some doubt regarding if the inputs for LCD SD and keypad will be enough.

I have used all of them separately, but I am afraid the libraries will use the same pins, is there a workaround here?

but I am afraid the libraries will use the same pins

The LCD and keypad use the pins that you specify. The SD card needs specific pins (the SPI pins).

PaulS:

but I am afraid the libraries will use the same pins

The LCD and keypad use the pins that you specify. The SD card needs specific pins (the SPI pins).

Thanks a lot Paul, I just found a way to read the keypad with a single analog input, https://www.youtube.com/watch?v=URO042VrCKU PRETTY COOL!