How to Create a Blynk Local Server

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Introduction: How to Create a Blynk Local Server

Blynk is a software/app allows a user to control arduino devices from a smartphone or tablet. This can be done by using the company's Blynk server or the user can host their own Blynk server. This Instructable shows you as to how the user can create their local Blynk Server.

JavaJDK 8.77

OpenSSL Installation Files

Step 1: The Actual Process

The actual process of creating a Blynk server has been clearly demonstrated in the video.

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31 Discussions

Hello,

These are the errors I get after I have done the certificates and restarted the server.

Do you have any idea of what I should do next?

I followed your video exactly so far. Running Win7

Thank you

same problem , finding solution , plzz reply if u finf the sol

server.host=
server.ssl.cert=./server_embedded.crt
server.ssl.key=./server_embedded.pem
server.ssl.key.pass=Fill you Encrytion Password heare <<====
#Blynk server allows to use 2 hosts for same IP, below properties for second host
server2.host=
server2.ssl.cert=./server_embedded.crt
server2.ssl.key=./server_embedded.pem
client.ssl.cert=
client.ssl.key=

thanks a lot man , i did solve it before , but thanks 💚
i just copied the .key file (rsa private key ) to.
the .pem file
so the rsa private key of .pem file matched with the rsa private key of .key file
n that's it , it worked ,
idk but the rsa private key of both the files previously was different ,
now its the same n working

hi...
i try to setup a blynk server, and following your instruction in the video but i stuck at the command prompt: wait too long but nothing happen.. can you help me?

i see no problem in your picture
your blynk server just started successfully as i see in your picture
if you see

Blynk server successfully started.
this means you had a real problem.

you can view the log which appears on cmd
for example, it should be
All server output is stored in folder 'C:\path\to\path\.\.logs' file.
All server output is stored in folder 'D:\Blynk Server\.\.logs' file.

you can contact me with email "shehabtweel@gmail.com"
For further help.
-- Shehab Ali Tweel

after getting the certificates , i run the server to check , i get error

i did all the 4 commands given to create certificates , now when i check my server.properties file , it is same as before , it has not changed ,
plzzzzzzz helppppppp

The server file is a zip file????
Do i unzip, if so where to???

Hello,

I am getting the same error:

Error Message: 'openss1 is not recognised as an internal or external command, operable program or batch file'.

I have tried entering it manually nothing helped.

Well at the place of openssl ... you have to put actually the path to your openssl folder that you have downloaded. Your actual command should look like

C:\OpenSSL-Win64\bin\openssl.exe genrsa -out server_embedded.key 2048
It works

sir , recently i started a new iot project which uses NodeMcu and blynk app. in blynk app i require more widgets and so more energy. hence i searched in web and found your video. i just followed your steps. and took 5 days to host it successfully. NOw the blynk app connects to my local server and i can access free energy. But now the problem is , the Nodemcu is not coming online in my blynk app. in app it shows "device is not online yet". but it will be connect to mobile wifi. and even i can acces my admin account also. so i request you to give me solution. as soon as possible . looking forward for your answer. thank you

hi, I have made it. but just wonder why there are many warnings??

warnings:

1. an illegal reflective access operation has occurred.

2. illegal reflective access by io.netty.util.internal.platformdependent0 (-folder path-/server-0.15.2.jar) to field java.nio.buffer.address

3. please consider reporting this to the maintainers of io.netty.util.internal.platformdependent0

4. use --illegal-access=warn to enable warnings of further illegal reflective access operations

5. all illegal access operations will be denied in a future release.

question: 1. does the connected device is connecting to the local machine hotspot or both were connecting to a local network or both?

first you must see your Raspberry pi IP and put it in your scetch.. after that you must make a port to your router (8443) i your android blynk use this port.. (in the mail.properties text file you must put your email and pass).In the blynk app put the switch in private server and IP (raspberry pi IP) and port 8443..If anyone have some problem P.M me

on the internet everybody shows how to connect the application to the server but nobody explains how to connect hardware to the local server how would you prevent your arduino getting connected to bylnk.cc servers instead of your local blynk server