Install bitcoin core on raspberry pi 3 Is it possible to install bitcoin core on raspberry pi 3 since I tried it once and it did not work out and I have an external drive for the bitcoin data for it?

OS: raspbian (8 GB space with 1TB HDD external drive)

If it does not work, can you explain it details to me why it cannot?

If it does work, can you tell me the correct way to install it?
It does work. Yes you need an external HD for the blockchain data (unless you want to run a pruned node) and Raspian is fine. 

In my opinion the best tutorial for setting up a full node on RP3 is this:

Damian Mee's Guide