CODEWITHSUNDEEP
cserial-portarduino
MRT89
MRT89

Reputation: 309

Arduino Serial Communication: Local Echo Human character input

I'm using an Arduino Duemilanove to run some tests. I'm communicating with the arduino over a serial port. All i'm trying to do is read in a couple of ints, and i'm using the parseInt() function for its simplicity.

My question is, is there a way to program the ardunino to echo back each character as it is entered while still making use of the parseInt() function?

I know there are typically options to turn on local echo in a terminal clients, but i'd rather not rely on these.

Here is the code I'm using: 

    unsigned int timeTotal;
    Serial.print("Enter Total Time of Period (ms): "); 
    while (!Serial.available()) {   ;   }    //wait for input
    while (Serial.available() > 0) {
        //Serial.write(Serial.peek());
        timeTotal = Serial.parseInt();      //read int
        Serial.read();              //discard newline char at end of input
        Serial.println();
        Serial.print("Total Time: ");
        Serial.println(timeTotal, DEC);
    }

as you can see, i was trying to use a peek() but that only gets me one character....

Thanks in advance !!!

Upvotes: 3

Views: 1946

Answers (1)

cstrutton
cstrutton

Reputation: 6187

You could read characters into a string (echoing them as you go) until your hit you delimiter. Then convert the string with atoi(). Without looking at the source, I am sure this ia what parseInt does anyway.

Upvotes: 1

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