You can download the user manual from:  

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

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Here, we will show how to use OSOYOO Smart Home IoT Kit with Blynk APP to control some electronic devices, such as leds, active buzzers, fan modules,relay modules, etc.

In this lesson, we will learn how to use Blynk to remotely turn on or turn off the LED and control the brightness of the LED. . . Using the same principle, you can also control other electronic devices

HARDWARE

SOFTWARE

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

Connect the LED Module to the D2 port as below:

Prerequisite:

Download , Edit and Run lesson2-1 Arduino Code
Step 1) P
lease download the code from following link, unzip it:
https://osoyoo.com/driver/Smart_House_IoT_Learning_Kit_V2.0_code/Lesson2-1.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 6 Open Arduino IDE:  Choose corresponding board type and port type for you project .

Step 7  Arduino IDE:  Click file – Open, then choose code in the folder, load up the  sketch onto your Arduino.

Note: In the  sketch, find these lines 13 as following:

char auth[] =”sM1i_rSJjDlQxesfuhOzrL0h9NiivJkn”;

Replace sM1i_rSJjDlQxesfuhOzrL0h9NiivJkn with your local Blynk Token. If you don’t know how to get token, read this article.

 

Then find   lines 22 23  24 and replace your wifi ssid/password  and your blynk server IP address

char ssid[] = "***";//replace this line with your wifi ssid
char pass[] = "***"; //replace this line with your wifi password
char server_ip[]="192.168.1.81"; // replace this line with your Blynk Server IP address

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

Now open Serial monitor in the upper right corner, you should see your Arduino IP address and Ready message as following:

Congratulations! You are all ready! Your hardware is now connected to the Blynk cloud!
If you can’t see your IP address, please check your Wifi SSID/Password setting in your code, If you can see IP address but no Ready message, please check your Blynk Token and Local Server IP address are correctly updated in your code file.

Blynk(legacy) App project setup

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

Button Widget settings:

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

OUTPUT: D2 |  0-1

MODE: We choose the Switch mode here.

You can modify other options according to your own habits or keep them as default.

Then back to the project page. and press the “” button to start your project.

Press the Button on the project page and you will find that the LED connected to D2 has been lit.

Press the Button again, the LED will be extinguished.

While in PLAY mode, you won’t be able to drag or set up new widgets, press “”  and get back to EDIT mode.

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

 

Remotely control the brightness of the LED

In this section we will introduce how to control the brightness of the light through this kit and Blynk APP.

The wiring and code of this experiment are the same as the previous part, we only need to add a new widget.

App project setup

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

Slider Widget settings:

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

OUTPUT: D2 |  0-255

You can modify other options according to your own habits or keep them as default.

Running Result

After you finished all above operations,open the Serial Monitor and you will see the connection situation,then open the Blynk APP, press the PLAY button ““. This will switch you from EDIT mode to PLAY mode where you can interact with the hardware.

While in PLAY mode, you won’t be able to drag or set up new widgets, press “” and get back to EDIT mode.

Slide the slider to change the brightness of the LED module connected to D2. When the slider is on the far left, the LED is off, and when the slider is on the far right, the LED is brightest.

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