Question: Sending and Receiving multiple characters on Arduino UNO

Projects Programming
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Hi, I'm using the Arduino UNO Rev3 and I have some questions about sending multiple chars.

I understand that the Arduino UNO reads multiple chars one by one (Example: send 7B, it will read as '7' and 'B')

Correct me if I'm wrong about that.

How do you receive multiple chars at once if my desired char is 7B which is 5566 once converted to decimal?

Because right now if i put Person == 5566, the arduino will just read 55, how do I make it able to read 66 as well?

if (Person == ??) { //unsure about this line
          
          digitalWrite(Activate1, HIGH);
          delay(300);
          Serial.print("Activate1 = 1");
        }

Much appreciated for any help, thanks! I am a newbie at programming so spare me the cane.

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The demos here and here may also be of interest.

...R

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How do you receive multiple chars at once if my desired char is 7B which is 5566 once converted to decimal?

How do you get 5566 from 7B?

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PaulS:

How do you receive multiple chars at once if my desired char is 7B which is 5566 once converted to decimal?

How do you get 5566 from 7B?

char code of '7' is 55, char code of 'B' is 55. I don't know why the OP would expect the arduino to automatically multiply the first char by 100 before adding the second though. Even if combined as an integer it would have a multiplication factor of 256 for the MSB. AND even this is still assuming MSB first.