Arduino get size of array

Arduino how to get array length

String myString = "text"; 					//make a stirng
int stringLength = myString.length(); 		//get length from string

Arduino get size of array

int ary[12];
int len = sizeof(ary)/sizeof(ary[0])

Source: forum.arduino.cc

Length of an array arduino

This program prints out a text string one character at a time. Try changing the text phrase.

char myStr[] = "this is a test";

void setup() {
  Serial.begin(9600);
}

void loop() {
  for (byte i = 0; i < sizeof(myStr) - 1; i++) {
    Serial.print(i, DEC);
    Serial.print(" = ");
    Serial.write(myStr[i]);
    Serial.println();
  }
  delay(5000);  // slow down the program
}

Source: arduino.cc

Similar codes

8 votes195 views4 answers
How print fload wiht 3 decimal in c++
C++
1 vote228 views1 answer
Isalpha c++
C++
3 votes185 views1 answer
C++ check if string contains uppercase
C++
5 votes232 views6 answers
String
C++
0 vote240 views2 answers
C++ 14 for sublime windoes build system
C++
12 votes224 views2 answers
C++ cast char to string
C++
0 vote196 views1 answer
C is widely used for systems-level software and embedded systems development.
C++
1 vote184 views1 answer
C++ vs g++
C++
1 vote189 views1 answer
Getline cin is being skipped
C++
0 vote137 views1 answer
C++ code executio canntot proceed because glew32.dll was not founud
C++