You can download the user manual from:  

https://osoyoo.com/manual/2021005400.pdf

Buy from US Buy from UK Buy from DE Buy from FR Buy from IT Buy from ES Buy from JP

Introduction

Here, we will demonstrate how to use this kit to make a remote family message board. We can send messages to this message board remotely through the Blynk APP.

Before starting this lesson, you can get more information about the I2C 1602 LCD display from this link.

HARDWARE

SOFTWARE

First, please plug OSOYOO MEGA-IoT Extension Board into MEGA2560 board:

Build the circuit as below:

Prerequisite:
You need to install Local Blynk Server, Blynk APP, Arduino IDE, Blynk Libraries before running the code of this lesson.  We suppose you have installed them in previous lessons.  If you haven’t done these installations, please read following contents in lesson2-1 link:

https://osoyoo.com/2021/04/29/osoyoo-smart-home-iot-blynk-lesson-2-1-simple-control/#prerequisite

If you haven’t install Liquid_Crystal_Display_I2C Library in Arduino IDE, Please download the zip file from following link:
https://osoyoo.com/wp-content/uploads/samplecode/LiquidCrystal_I2C.zip

In Arduino IDE, click Sketch->Include Library ->Add .ZIP library and upload the library zip files to the IDE.

If you have completed installation of all the libraries required, then you can go to next stage:

Download and Edit Lesson2-6 Arduino Code file

Step 1 Download the code from following link, unzip it:
https://osoyoo.com/driver/Smart_House_IoT_Learning_Kit_V2.0_code/Lesson2-6.zip

Step 2 After above operations are completed, connect OSOYOO MEGA2560 Board to PC with USB cable.

Notice: Shut off your battery or unplug your power adapter when upload sketch code to Arduino.

Step 3 Open Arduino IDE:  Choose corresponding board type and port type for you project.

Step 4  Arduino IDE:  Click file – Open, then choose code in the folder, load up the  sketch onto your Arduino.

You need to edit the code as following:

**********************************************************

Note: In the  sketch, find these code in line 13,14 as following:

char auth[] =”0ByWpc50cmOJ5O6OyHMaK4OSHkDvUeI-”;
char server_ip[]=”192.168.1.81″; // replace this line with your Blynk Server IP addres;

Replace 0ByWpc50cmOJ5O6OyHMaK4OSHkDvUeI- with your local Blynk Token.
Replace 192.168.1.81 with your local Blynk Server LAN IP address.
If you don’t know how to get token and Server IP address, read this article.

In   lines 18,19 and replace *** with your wifi ssid/password

char ssid[] = "***";//replace this line with your wifi ssid
char pass[] = "***"; //replace this line with your wifi password

please replace the *** with your correct wifi SSID and password, otherwise your project can not connect to Internet.

Upload the sketch to the board. Wait until you see something like this:

Done uploading

Now open your Serial Monitor, you will see Arduino is trying to talk to Blynk server. After 20 to 30 seconds, your Serial monitor will finally shows Arduino’s IP address and a “Ready (ping: 25ms)” ending message.

Congratulations! You are all ready! Your hardware is now connected to the Blynk server.

Add a Widget in Blynk legacy APP

Now we need to add a Text Input widget to get the real time distance value. Please Follow the next steps:

Widget Setting

Open your project page and press the “+” button to add  the “Text Input” Widget.

Name Column: You can name your widget, whatever you like.

PIN:  V10

CHARACTERLIMIT: 16

Click the text input field, enter what you want to say (up to 16 characters), click the send button to send, and then you can see your message is displayed on the 1602 LCD screen.

Now we enter “Hello OSOYOO!” here, and leave a message telling the family that they need to do housework. Does it feel convenient and fun?

 

You can also write code to scroll the words on the LCD screen, and you can also try to display your message on another line on the screen, as long as you are willing to use your brain, these are not difficult.

If you find the device is offline, please check your code, wiring and app settings, and try again.

No. Picture Device Qty. Link
1 OSOYOO MEGA2560 Board 1 Click here to buy
2 OSOYOO MEGA-IoT Extension Board 1 Click here to buy
3 Photosensitive Sensor 1 Click here to buy
4 Temp & Hum Sensor 1 Click here to buy
5  OSOYOO Active Buzzer Module 1 Click here to buy
6 Flame Detection Sensor 1 Click here to buy
7 Fan Motor Module 1 Click here to buy
8 Micro Servo Motor 1 Click here to buy
9 RGB Module 1 Click here to buy
10 Ultrasonic Sensor 1 Click here to buy
11 PIR Motion Sensor 1 Click here to buy
12 Microphone Module 1 Click here to buy
13 1602 I2C LCD Screen 1 Click here to buy
14 RFID Module 1 Click here to buy
15 White LED Module 1 Click here to buy
16 Red LED Module 1 Click here to buy
17 Colorful Light 1 Click here to buy
18 Red Button Module 1 Click here to buy
19 Blue Button Module 1 Click here to buy
20 Philips Screwdriver 1 Click here to buy