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Blynk developer hub: resources and tools

Getting started, documentation, libraries, supported hardware, connectivity, protocols, community—everything you need to build an amazing IoT project.

Pick your way to connect to Blynk

Blynk.Edgent (recommended)

Cloud connection, data exchange, WiFi provisioning, OTA firmware updates and more for supported boards and dual-MCU configurations (NCP).

Documentation
MQTT API

Ideal for projects utilizing MQTT libraries, Node-RED and similar, or SDKs with MQTT support as well as integrating off-the-shelf MQTT-enabled gateways and hardware.

Documentation
HTTPs API

Blynk HTTPs RESTful API allows to easily send and get data from hardware, cloud, and apps using HTTPs requests including sending timestamped data in batches.

Documentation
Blynk.NCP

NCP handles Blynk.Cloud connectivity (WiFi, Ethernet, Cellular), offloading this task from the main device's MCU.

Main MCU operates with a lightweight client library, communicating with the NCP via UART or SPI.

Ideal for retrofitting scenarios.

Documentation
Blynk library

Portable C++ library, pre-configured to work with hundreds of dev boards.

Low latency, bi-directional communication through a streaming connection protocol.

Follow this quick wizard to manually get any device connected to Blynk and get an idea of how it all works.

Get Started

Technical requirements

1

IoT hardware

Blynk can run on over 400 hardware modules. The most popular are:

  • ESP32, ESP8266
  • NodeMCU
  • Arduino (any model)
  • Raspberry Pi (any model)
  • Particle (any model)

Full list of supported hardware →

2

Smartphone

Any modern mobile platform or emulator will do:

  • Android OS version 5+
  • iOS version 14.1+
3

Desktop device

Supports any major desktop platform, including:

  • Windows
  • MacOS
  • Linux

Connectivity and protocols

Connectivity options

  • WiFi
  • Ethernet
  • Cellular (GSM, 2G, 3G, 4G, LTE)
  • LoRaWAN
  • Satellite

Data transfer protocols

  • Blynk protocol (via Blynk.Edgent or Blynk library)
  • MQTT
  • HTTP(s)

Learn Blynk basics

What is Virtual Pin

Virtual Pin is one of the fundamentals of Blynk platform. It allows exchanging any data between your hardware, cloud, and smartphone

Learn more →

How to set up Datastreams for use in Blynk mobile app

Datastream is an important platform component that allows to configure how data is sent between the device and Blynk.Cloud

Learn more →

Provisioning IoT devices by end-users

How to simplify device onboarding, automate firmware configuration, and deliver flawless user experiences

Learn more →

How to update devices over-the-air

Send firmware updates to a single device or manage scaled deployments

Learn more →

Libraries to connect any hardware

C++ (Arduino)

The most popular library for:
‍
• ESP8266, ESP32
• Arduino boards
• Raspberry Pi
• SparkFun
• Texas Instruments

Install

Python

Python 2, 3, MicroPython

Runs on Linux, Windows, or MacOS

Install

JavaScript

Works with Browsers, Node.js, Espruino, Raspberry Pi

Runs on Linux, Windows, or MacOS

Install

3rd party libraries

Particle
Node-RED
LUA
MBED
LabView

Install

Helpful resources

System status

Blynk Cloud Servers have 99.99% uptime since May 2015
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