This example is for Wiring version 0024+. 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.
Iteration over digital outputs.
Iteration with a "for" structure over output pins. LEDs are wired from pins 0 to 7
Iteration with a "for" structure over output pins. LEDs are wired from pins 0 to 7
void setup() { Serial.begin(9600); for(int i = 0; i<8; i++) { // sets pins 0-7 as outputs pinMode(i, OUTPUT); } } void loop() { for(int i = 0; i<8; i++) { // sets pins 0-7 to HIGH digitalWrite(i, HIGH); delay(100); // delay to see the sequence } for(int i = 0; i<8; i++) { // sets pins 0-7 to LOW digitalWrite(i, LOW); delay(100); // delay to see the sequence } }