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In this lesson, we will show how to use the OSOYOO ESP8266 WiFi Shield and the OSOYOO Basic Board (fully compatible with Arduino UNO) to work as a web server and display the message “Hello World!” in a browser.

Simply insert the OSOYOO ESP8266 WiFi Shield into the OSOYOO Basic Board and use a jumper cap to connect E_TX to D4 and E_RX to D5, as shown in the following picture.

Note: If you want to use the above WiFi Shield on a Leonardo Board instead of the OSOYOO Basic Board, you will have to remove the jumper cap between D4 and E-TX. Then use a jumper wire to connect E-TX to D8 pin on the Leonardo Board. You will also need to set the SoftwareSerial RX pin to D8 instead of D4 in your sketch code.

Download the Fritzing Part file from the following link

Software IDE:

Software Installation

Step A) Install latest IDE (If you have IDE version after 1.1.16, please skip this step).

Download IDE from, then install the software.

Step B)WifiESP Library is required to run OSOYOO ESP8266 shield sketch code. If you have installed this library, please skip this step.

WifiESP library can be downloaded from following link:

then in your IDE ->Sketch->Include Library->Add .ZIP Library and select the file you just downloaded, and upload it to IDE.

Step C)Download and Edit esp8266-lesson1.ino file
Please download sketch from and unzip the file and double click esp8266-lesson1.ino file, you can edit this file in IDE.

Step D) Connect the OSOYOO Basic  board to computer via USB cable,

Step E) Open the IDE and choose corresponding board type and port type for you project.

Step F) IDE: Click file -> click Open -> choose code “esp8266-lesson1”, load up the  sketch onto your IDE.

In the  sketch, find   following lines:

char ssid[] = "******"; // your network SSID (name)
char pass[] = "******"; // your network password
please replace the ****** with your correct wifi SSID and password, otherwise your project can
 not connect to Internet. not connect to Internet.

After loading the sketch to IDE, open the serial monitor in the upper-right corner of  IDE

You will see following message:

From the serial monitor , you can see the IP address of your OSOYOO Basic  board  in the read circle (in above picture,

Then use your browser to visit the website, you will see following result:

Learn More about parts

No. Picture Product Name Link
1 OSOYOO basic board
2 OSOYOO WIFI shield
3 Photoresistor Sensor Module
4 Water Level Detection Sensor
5 Sound Detection Sensor Module
6 Ultrasonic sensor
7 Servo motor
8 Active Buzzer Module
9 Temperature&Humidity Sensor
10 Relay Module
11 Gas Sensor Module
12 Digital Barometric Pressure Sensor Module
13 Infrared Sensor Module
14 LED(6 x White, 6 x Red, 6 x Yellow, 6x Green)