RFID Question

Other Hardware General Electronics
1

Hey Everyone,

I am fairly new to arduino and i'm really just looking for someone to tell me if what I want to do is possible and to point me in the right direction.

Ok of the topic at hand. I am hoping that i can take an arduino and an MFRC522 to read the data on a specific block (2 bytes of data total) then use that data to complete a mathematical equation and show the result on a screen (not the serial monitor). For example when the RFID chip is read the Arduino would execute the following equation and display the new total on the screen.

Starting Total: 100
Base Value of the Sensor = A

(Eventualy I will add more RFID Readers that will have a different base value and will read a different block of information. I want to get on working first and will expand later)

Byte 1 = B (if i am correct each byte of information is a 2 digit number. I know it can also be a one digit number however I will only be working with 2 digit numbers.)
B0.1 = C
AC = D

100 - D = New Total

Thanks for your time. I hope someone has good news for me.

2

Use the forum Google search function in the upper right of this page to search for the key words of your project. You will probably find many previous project discussions and code for similar projects.

3

Thanks for your time. I hope someone has good news for me.

I don't know what news you are expecting, considering you haven't asked any question.
What is the question ?

I want to do is possible and to point me in the right direction.

Is it possible ?
The RFID reader is SPI so it should be.
You have to write the code.
Display ? I'm sure you know an LCD 2X16 is possible.

What direction do you want to go ?
Point being, you need to be more specific. If you have a question, ask it.
I think you already know this is possible.
You need to ask some specific question besides is it possible.
It's well known that the arduino supports SPI.
It's well known that it supports LCD displays (many flavors, not just the 2 x16)
Are we supposed to read between the lines ?