Led Wave!

A simple beginner project that explains how leds work, and it can be easily expanded!

Mar 9, 2021

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Devices & Components

Arduino Uno Rev3

Resistor 10k ohm

5 mm LED: Red

Hardware & Tools

Premium Male/Male Jumper Wires, 40 x 3" (75mm)

Breadboard, 170 Pin

Software & Tools

Arduino IDE

Project description

Code

Untitled file

arduino

1int ledCount = 5;
2int leds[] = {13, 12, 11, 10, 9};
3int currentState[]   = {HIGH, LOW, LOW, LOW, LOW};
4int currentHighLed = 0;
5
6void setup() {
7for   (int i = 0; i < ledCount; i++) {
8pinMode(leds[i], OUTPUT);
9}
10}
11
12void   loop() {
13
14for (int i = 0; i < ledCount; i++) {
15digitalWrite(leds[i], currentState[i]);
16}
17currentState[currentHighLed]   = LOW;
18currentHighLed++;
19if (currentHighLed >= 5) {
20currentHighLed = 0;
21}
22currentState[currentHighLed]   = HIGH;
23delay(500);
24}

int ledCount = 5;
int leds[] = {13, 12, 11, 10, 9};
int currentState[]   = {HIGH, LOW, LOW, LOW, LOW};
int currentHighLed = 0;

void setup() {
for   (int i = 0; i < ledCount; i++) {
pinMode(leds[i], OUTPUT);
}
}

void   loop() {

for (int i = 0; i < ledCount; i++) {
digitalWrite(leds[i], currentState[i]);
}
currentState[currentHighLed]   = LOW;
currentHighLed++;
if (currentHighLed >= 5) {
currentHighLed = 0;
}
currentState[currentHighLed]   = HIGH;
delay(500);
}

Untitled file

arduino

1int ledCount = 5;
2int leds[] = {13, 12, 11, 10, 9};
3int currentState[]  = {HIGH, LOW, LOW, LOW, LOW};
4int currentHighLed = 0;
5
6void setup() {
7for  (int i = 0; i < ledCount; i++) {
8pinMode(leds[i], OUTPUT);
9}
10}
11
12void  loop() {
13
14for (int i = 0; i < ledCount; i++) {
15digitalWrite(leds[i], currentState[i]);
16}
17currentState[currentHighLed]  = LOW;
18currentHighLed++;
19if (currentHighLed >= 5) {
20currentHighLed = 0;
21}
22currentState[currentHighLed]  = HIGH;
23delay(500);
24}

int ledCount = 5;
int leds[] = {13, 12, 11, 10, 9};
int currentState[]  = {HIGH, LOW, LOW, LOW, LOW};
int currentHighLed = 0;

void setup() {
for  (int i = 0; i < ledCount; i++) {
pinMode(leds[i], OUTPUT);
}
}

void  loop() {

for (int i = 0; i < ledCount; i++) {
digitalWrite(leds[i], currentState[i]);
}
currentState[currentHighLed]  = LOW;
currentHighLed++;
if (currentHighLed >= 5) {
currentHighLed = 0;
}
currentState[currentHighLed]  = HIGH;
delay(500);
}

Downloadable files

As I am not good at these the correct led amount is 5 from pin 9-13

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stannano

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