Esp8266 Pin Diagram How To Use ESP8266

In this ESP8266 PWM Tutorial, Ill teach you how to use ESP8266 WiFi Module to generate Pulse Width Modulation (PWM) signals that will be used for LED Fading.

Using the PWM technique, we have controlled the intensity of an LED (increased or decreased its brightness), changed the speed of a DC Motor (increase or decrease the speed) and also rotated a Servo Motor.

In place of Pin Number, enter the number of the Pin through which you want use the PWM Output.

In case of Arduino, the resolution is 8-bit, so you would have to enter a value between 0 and 255.

RST (Reset) pin of the ESP8266 WiFi Module is connected to GND through a push button.

Note in the circuit diagram that the RX pin of ESP8266 is not directly connected to the RX pin of the Arduino but through a level converter (consisting of 1K and 2.2K Resistors).

This pin responsible for enabling programming mode in the ESP8266.

Connect the GPIO0 Pin to a SPDT slide switch i.e.

Esp8266 Pin Diagram Code Will Start

Now, the code will start running and initially you can see the LED slowly increasing its brightness through 5 steps to maximum intensity.