LED Bar Graph Display

The LED Bar Graph Display project demonstrates how to create a simple bar graph display using LEDs and an Arduino Nano. The bar graph consists of multiple LEDs arranged in a linear fashion, where each LED represents a specific data point or level. This project provides a basic setup for controlling the LEDs in the bar graph to display different patterns or levels.

Components Needed

Circuit Diagram

Circuit Setup

1.Connect LEDs to Arduino Nano:

Connect each LED's anode (longer lead) to digital output pins of the Arduino Nano.

Connect each LED's cathode (shorter lead) to a current-limiting resistor, then connect the other end of the resistor to the ground (GND) of the Arduino Nano.

Ensure proper current-limiting resistors are used to prevent damage to the LEDs and Arduino.

Instructions

1.Circuit Setup:

Wire the LCD module to the Arduino Nano as described in the circuit setup section.

Arrange the LEDs in a linear fashion to represent the desired bar graph display.

2.Code Upload:

Connect the Arduino Nano to your computer via USB.

Open the Arduino IDE and paste the provided code.

Upload the code to the Arduino Nano.

3.Testing:

Once the code is uploaded, observe the LED bar graph display to see different patterns or levels.

Experiment with the code to customize the behavior of the LED bar graph according to your requirements.

Applications

Visual Feedback: Use the LED bar graph display to provide visual feedback based on sensor readings or system status.

Level Indication: Display levels of various parameters such as temperature, humidity, or sound intensity.

Progress Display: Show progress or completion status of tasks or processes.

Notes

Ensure proper current limiting to prevent excessive current flow through the LEDs.

Adjust the delay time in the code to control the speed at which the LED bar graph updates.

Experiment with different LED arrangements and display patterns to achieve desired visual effects.