Hey, I am thinking of making an NFC door access system for my masters dissertation.
This system would consist of NFC terminal, android app and a server.
The NFC terminal would hold an access code. This code would also be held by the "customer" on their phone. When the phone would establish a connection with the terminal the access code would be used to open the lock.
Additionally, the terminal will be connected to the internet via WIFI module. This is because I want to be able to change the access code when ever I want.
I was thinking of using a NFC frontend like PN5180, a SAM between host and frontend and WIFI module which would also act as a host.
Note: I am new to microcontroller programming and new to NFC so please bare with me if questions are too basic.
Now to the questions:
1. Which components do you recommend for compatibility? (can PN5180 be connected in this
manner: PN5180 <-> SAM <-> Host?)
*For my host processor I am thinking of using a wifi module from STM with STM32 ARM Cortex-M3 MCU*
2. Is peer to peer communication expected in this kind of system? - As you can see I wish to
use some sort of safe communication / authentication mechanism between reader and
These are two questions to begin with. I have to warn you I will have more when I decide which
components to use :-)