ESP8266 LED Dimmer Project

This project demonstrates how to create a LED dimmer using an ESP8266 microcontroller. The brightness of an LED connected to GPIO pin D1 is adjusted smoothly using Pulse Width Modulation (PWM) to create a dimming effect.

Components Needed

Circuit Diagram

Circuit Setup

1.Connecting LED to ESP8266:

Connect the cathode (short leg) of the LED to GPIO pin D1 (or any GPIO pin of your choice).

Connect the anode (long leg) of the LED to a current-limiting resistor (if required) and then to ground.

Instructions

1.Code Upload:

Open the Arduino IDE with ESP8266 board support installed.

Create a new sketch and paste the provided Arduino code.

Connect the ESP8266 to your computer, select the appropriate board and port from the Tools menu.

Upload the code to the ESP8266.

2.Testing:

After uploading the code, observe the LED connected to pin D1.

The LED brightness will gradually increase and decrease in a smooth cycle.

Applications

Mood Lighting: Control the ambiance of a room by adjusting LED brightness.

Visual Effects: Create dynamic lighting effects in projects.

Learning PWM: Understand PWM and analog control with microcontrollers.

Notes

LED Polarity: Ensure the correct orientation of the LED (cathode to ground, anode to GPIO pin).

resistor: Use a resistor to limit current if the LED requires it to prevent damage.

PWM Control: Adjust the brightness levels by modifying the PWM duty cycle in the code (analogWrite() function).