node-red-contrib-blynk-ws 0.7.1

Node Red integration with Blynk App and Server through websockets

npm install node-red-contrib-blynk-ws

npm version Npm download GitHub stars GitHub issues License



Blynk library implementation for Node-RED using WebSockets

What is Blynk?

Blynk is a platform with iOS and Android apps to control Arduino, Raspberry Pi and the likes over the Internet. You can easily build graphic interfaces for all your projects by simply dragging and dropping widgets. If you need more information, please follow these links:

Node-RED blynk Websockets version

This library supports both SSL (wss://) and non secure (ws://) connection to local server and Blynk cloud server. For local server, wss:// works only if you ve got a certificate installed. For Blynk cloud server, you can use ws:// or with SSL wss:// as the server url.

If you installed Node Red globally use this command to install npm install --global node-red-contrib-blynk-ws

Supported events, commands and widgets


  • read
  • write
  • app (connected/disconected)


  • write
  • bridge
  • sync (virtual/all)
  • set property


  • emails
  • notify
  • LCD
  • table
  • zeRGBa
  • styled button


See the changelog for all the details of each releases

Node-RED palette

Available Nodes

Blynk App Settings

Use Raspberry PI as hardware to access 128 virtual pins or Generic Board for 32.

How to use

See information panel on every nodes

Information Panel


Use the verbose -v flag when starting Node-RED to get more information or use node-red-log and enable log on Configuration Node as needed

Log settings


This library is retrocompatible and can replace node-red-contrib-blynk-websockets. To do this:

  • stop node-red
  • install node-red-contrib-blynk-ws npm install node-red-contrib-blynk-ws
  • remove node-red-contrib-blynk-websockets npm uninstall node-red-contrib-blynk-websockets
  • edit your flow file eg: "my-flows.js" search for 'blynk-websockets-' and replace with 'blynk-ws-'
  • start node-red.

Implementations for other platforms


The node-red-contrib-blynk-ws was born as a fork of node-red-contrib-blynk-websockets
Some javascripts code was derived from blynk-library-js:


This project is released under The MIT License (MIT)

Node Info

Version: 0.7.1
Updated 2 months, 2 weeks ago
License: MIT


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  • blynk-ws-client
  • blynk-ws-in-app
  • blynk-ws-in-read
  • blynk-ws-in-write
  • blynk-ws-out-write
  • blynk-ws-out-set-property
  • blynk-ws-out-sync
  • blynk-ws-out-bridge
  • blynk-ws-out-email
  • blynk-ws-out-lcd
  • blynk-ws-out-notify
  • blynk-ws-out-table
  • blynk-ws-zergba
  • blynk-ws-style-btn


  • node-red
  • blynk
  • iot
  • websockets


  • gablau