Introduction: Control Arduino Using Blynk Via Usb
This is my second instructable. In this instructable i will show how to control LED's using Blynk.
Blynk is application which provides us dashboard as well as connectivity. which you can download it from google play store (for Android).& app store (for apple).using blynk you can control led from any where in world over internet.
for video guidance
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Step 1: Parts
Step 2: Blynk Setup
create an account on blynk app.then select buttons according to your requirement and select pins on which led is connected.
email your token to your gmail account.
Step 3:
Download Blynk library.
unzip this zip file and copy all the folders and paste it to arduino ide/ libraries.
then open the sketch in arduino ide from file "examles/blynk/bordandsheilds".select on Arduino serial usb.
then edit the sketch by entering
YourAuthToken
upload the sketch .
then search blynk-ser.bat file in
"Blynk-library\blynk-library\scripts"
edit the line no. 6 enter your serial com no.
(In my case where COM7 is port with my Arduino)
then run the file.
DAM YOU ARE SUCCEFULLY CONNECTTED to blynk connect leds to arduino and
control leds any where in world.

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1 Person Made This Project!
- pkburnwal made it!
38 Comments
7 years ago
If you have any doubts please ask without any hesitation.
Reply 10 months ago
New blynk via usb
Question 1 year ago on Introduction
Is there any instruction on how to do it with the new app? There doesn't seem to be any way to get the old app working without a pre existing login
Question 2 years ago on Step 3
But when I saw the official blynk website it says we shouldn't unzip the blynk library....
3 years ago
My Blynk app shows Device is Offline how to solve error
5 years ago
My Blynk app shows Device is Offline how to solve error
5 years ago
is same code applicable to blink 4 leds
5 years ago
This was easy and helpful!
6 years ago
Hi, I am using this with a Mac. When I tried to upload the sketch "Arduino_Serial_USB", it gives the error message saying that it doesn't recognize the file/directory "BlynkSimpleStream.h". I understand the tutorial is designed for Windows but do you know how I can fix this error message?
Thank You :)
Reply 6 years ago
Use latest arduino ide 1.6.12
I am little bit busy due to exams.
If you not able to resolve the problem then visit & post your problem here
http://community.blynk.cc
Reply 6 years ago
Thanks it worked one more question if you have the time. My sketch is verified but won't upload to my Arduino. Is this just due to the fact that it is a big file? Should I expect to wait the whole night? Or is there something else wrong? It just constantly says "Uploading"
Thanks Again (I know you have exams)
Reply 6 years ago
Arduino just take 3-4 seconds to upload a sketch.if sketch compiles then it definitely uploadable.
are you able to upload simple blinking LED sketch.??
If not then Check
1)have you select right COM port.
2) driver's installed properly or not.
3)if both not work then your arduino is damaged.
6 years ago
Hi I tried to connect it via USB on my mac but it does not work :(
This is what it says in the Terminal. ANd on the app it says Arduino Mega is offline. Can someone help please? Thanks lot!
Reply 6 years ago
Sorry ,i haven't mac.this guide is for Windows.
have to you closed Arduino ide serial monitor when terminal is open??
Have to entered right serial port no. in bat file ??
6 years ago
can we use this tutorial with arduino nano?
6 years ago
Thank you, it totally worked
6 years ago
The system cannot find the file specified.
Connecting device at COM13 to blynk-cloud.com:8442...
'com2tcp' is not recognized as an internal or external command,
operable program or batch file.
Reconnecting in 3s...
6 years ago
The system cannot find the file specified.
Connecting device at COM13 to blynk-cloud.com:8442...
'com2tcp' is not recognized as an internal or external command,
operable program or batch file.
Reconnecting in 3s...
6 years ago
hello.. i have a little problem with the blynk-ser file, i cannot edit the 6 line in order to write my com no. port. and in my blynk library a dont find a file named blynk-ser.bat, i just find this file: blynk-ser.
Reply 6 years ago
Try to edit using notepad ++ or reinstall blynk library.
For detail guidance must watch video.