This example is for Wiring version 1.0 build 0100+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know.
Array 2D.
Demonstrates the syntax for creating a two-dimensional (2D) array. Values in a 2D array are accessed through two index values. 2D arrays are useful for storing bitmaps. In this example, each position is holding a number multiple of 5. Also demonstrates how to pass an array as a parameter to a function. The function printArray is used to print a 2D array.
Demonstrates the syntax for creating a two-dimensional (2D) array. Values in a 2D array are accessed through two index values. 2D arrays are useful for storing bitmaps. In this example, each position is holding a number multiple of 5. Also demonstrates how to pass an array as a parameter to a function. The function printArray is used to print a 2D array.
int numbers[5][5] = { {5, 10, 15, 20, 25}, // declares an 2D array of 5x5 positions {30, 35, 40, 45, 50}, // with initial values {55, 60, 65, 70, 75}, {80, 85, 90, 95, 100}, {105, 110, 115, 120, 125} }; void setup() { Serial.begin(9600); } void loop() { printArray(numbers); // call printArray with the array "numbers" delay(2000); // wait 2 seconds for next print } // funtion that prints a 5x5 array void printArray(int array [5][5]) { for (int i = 0; i < 5; i++) { // print the 2D array using i and j as indexes for (int j = 0; j < 5; j++) { Serial.print(array[i][j], DEC); Serial.print(" "); } Serial.println(); } Serial.println(); }