> For the complete documentation index, see [llms.txt](https://docs.blynk.io/en/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.blynk.io/en/blynk-library-firmware-api/installation.md).

# Installation

An easy to use and portable C++ library, pre-configured to work with **hundreds of development boards**.

The library implements a streaming connection protocol (i.e. the device stays always connected to the cloud), that allows for a **low latency, bi-directional** communication. 

Use [Quickstart flow](/en/getting-started/what-do-i-need-to-blynk.md) for a quick demo and make sure to explore [Blynk Library documentation](/en/blynk-library-firmware-api/configuration.md) afterwards.

{% content-ref url="/pages/uoJispUg4S6LW7IJijwX" %}
[Install Blynk Library in Arduino IDE](/en/blynk-library-firmware-api/installation/install-blynk-library-in-arduino-ide.md)
{% endcontent-ref %}

{% content-ref url="/pages/L27y1lWzpDKVHxaxjyN4" %}
[Install Blynk Library for Platformio.org](/en/blynk-library-firmware-api/installation/install-blynk-library-for-platformio.org.md)
{% endcontent-ref %}

{% content-ref url="/pages/jF1sytYPUnkylc3pIzvI" %}
[Install ESP8266 core for Arduino IDE](/en/blynk-library-firmware-api/installation/install-esp8266-core-for-arduino-ide.md)
{% endcontent-ref %}


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