Project 1.1.10: PARTY LIGHTNENING
| Description | This project shows how to make five LEDs turn on and off one after the other using an Arduino Uno. It introduces light sequencing and timing control. |
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| Use case | This project can be used to create decorative lighting effects, such as party lights that blink in a repeated pattern. |
Components (Things You will need)
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Building the circuit
Things Needed:
- Arduino Uno = 1
- Arduino USB cable = 1
- LED = 5
- Jumper wires = 10
- Resistor = 5
Mounting the component on the breadboard
Step 1: Place the five LEDs on the breadboard. For each LED, the longer leg is the positive pin, while the shorter leg is the negative pin.
NB: Make sure you identify where the positive pin (+) and the negative pin (-) is connected to on the breadboard. The longer pin of the LED is the positive pin and the shorter one, the negative PIN.
WIRING THE CIRCUIT
Step 2: Connect the positive leg of the first LED to pin 6 on the Arduino through a 220Ω resistor. Connect its negative leg to GND.
Step 3: Connect the positive leg of the second LED to pin 5 on the Arduino through a 220Ω resistor. Connect its negative leg to GND.
Step 4: Connect the positive leg of the third LED to pin 4 on the Arduino through a 220Ω resistor. Connect its negative leg to GND.
Step 5: Connect the positive leg of the fourth LED to pin 3 on the Arduino through a 220Ω resistor. Connect its negative leg to GND.
Step 6: Connect the positive leg of the fifth LED to pin 2 on the Arduino through a 220Ω resistor. Connect its negative leg to GND.
make sure you connect the arduino usb use blue cable to the Arduino board.
PROGRAMMING
Step 1: Open your Arduino IDE. See how to set up here: Getting Started.
Step 2: Type the following codes in the void setup function as shown in the image below.
cpp
pinMode(6, OUTPUT); // sets pin 6 as an output pin for the first LED.
pinMode(5, OUTPUT); // sets pin 5 as an output pin for the second LED.
pinMode(4, OUTPUT); // sets pin 4 as an output pin for the third LED.
pinMode(3, OUTPUT); // sets pin 3 as an output pin for the fourth LED.
pinMode(2, OUTPUT); // sets pin 2 as an output pin for the fifth LED.
NB: pinMode will help the Arduino board to decide which port should be activated. The code below will turn off the three light bulbs.
Step 3: Type the following codes in the void loop function.as shown in the image below;
cpp
digitalWrite (6, HIGH);
delay (1000);
digitalWrite (6, LOW);
delay (1000);
Step 4: Let's continue by typing the following code:
cpp
digitalWrite (5, HIGH);
delay (1000);
digitalWrite (5, LOW);
delay (1000);
Step 5: Let's continue by typing the following code: ```cpp digitalWrite (4, HIGH); delay (1000); digitalWrite (4, LOW); delay (1000);
```
Step 6: Let's continue by typing the following code:
cpp
digitalWrite (3, HIGH);
delay (1000);
digitalWrite (3, LOW);
delay (1000);
Step 7: Let's finish by typing the following code:
cpp
digitalWrite (2, HIGH);
delay (1000);
digitalWrite (2, LOW);
delay (1000);
Step 8: Save your code. See the Getting Started section
CONCLUSION
This project helps learners understand how to control five LEDs in a sequence using Arduino. It is a simple introduction to decorative lighting, timing, and multiple output control.