Data Sheet

73
Lesson 32 ESP8266
Overview
The ESP-01S ESP8266 WiFi Module is a self-contained SOC with integrated TCP/IP protocol
stack that can let any microcontroller access to your WiFi network. The ESP-01S ESP8266
module comes with pre-programmed AT command set firmware which means that you can
simply hook it up to your Arduino directly.
In this lesson, you will learn how to use ESP8266 to build a WIFI remote control system.
Components Required
Name Qty Name Qty
MEGA 2560 1 ESP8266 Module 1
Relay 1 DuPont Wire 9
An Android app should be downloaded and installed to work with the lesson32 and lesson33
projects. It can communicate with UNO or MEGA2560 by the ESP8266 on-board WiFi to
control the relay and motor. It can also read the temperature and humidity from the sensors.
Step 1 Open the code from lesson 32 and change the SSID and the PASSWORD to match
your home WIFI network.
Step 2 The following dialog box will appear when the ESP8266 accessed WiFi successfully.
The IP address shows after the "STAIP" string will be used in the next step, please write it
down.
#define SS I D “KK” // type your own SS I D name
#define PASSW O RD “12345687” // type your own WIF I password
#define Temp_maxlimit Maximum temperature 29 // type your
#define Temp_minlimit Minimum temperature 28 // type your