# Legacy articles

{% hint style="warning" %}
This documentation is for the LEGACY version of Blynk platform which is no longer supported and will be shut down. 

You can sign up for the current version of Blynk platform [here](http://blynk.cloud/dashboard/register).

The new mobile apps can be downloaded from [App Store](https://apps.apple.com/us/app/blynk-iot/id1559317868) and [Google Play](https://play.google.com/store/apps/details?id=cloud.blynk\&hl=en\&gl=US).

The actual Blynk documentation is [here](https://docs.blynk.io/).
{% endhint %}

Here are the articles in this section:

{% content-ref url="legacy-articles/what-is-virtual-pins" %}
[what-is-virtual-pins](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/what-is-virtual-pins)
{% endcontent-ref %}

{% content-ref url="legacy-articles/keep-your-void-loop-clean" %}
[keep-your-void-loop-clean](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/keep-your-void-loop-clean)
{% endcontent-ref %}

{% content-ref url="legacy-articles/how-to-control-anything-with-blynk-app" %}
[how-to-control-anything-with-blynk-app](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/how-to-control-anything-with-blynk-app)
{% endcontent-ref %}

{% content-ref url="legacy-articles/nodemcu" %}
[nodemcu](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/nodemcu)
{% endcontent-ref %}

{% content-ref url="legacy-articles/esp8266-standalone" %}
[esp8266-standalone](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/esp8266-standalone)
{% endcontent-ref %}

{% content-ref url="legacy-articles/particle-electron" %}
[particle-electron](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/particle-electron)
{% endcontent-ref %}

{% content-ref url="legacy-articles/esp8266-with-at-firmware" %}
[esp8266-with-at-firmware](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/esp8266-with-at-firmware)
{% endcontent-ref %}

{% content-ref url="legacy-articles/bluetooth-2.0-spp-4.0-le" %}
[bluetooth-2.0-spp-4.0-le](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/bluetooth-2.0-spp-4.0-le)
{% endcontent-ref %}

{% content-ref url="legacy-articles/usb-serial" %}
[usb-serial](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/usb-serial)
{% endcontent-ref %}

{% content-ref url="legacy-articles/raspberry-pi-and-blynk" %}
[raspberry-pi-and-blynk](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/raspberry-pi-and-blynk)
{% endcontent-ref %}

{% content-ref url="legacy-articles/bbc-micro-bit-+-arduino-ide" %}
[bbc-micro-bit-+-arduino-ide](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/bbc-micro-bit-+-arduino-ide)
{% endcontent-ref %}

{% content-ref url="legacy-articles/blynk-and-raspberry-pi-tips-and-tricks" %}
[blynk-and-raspberry-pi-tips-and-tricks](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/blynk-and-raspberry-pi-tips-and-tricks)
{% endcontent-ref %}

{% content-ref url="legacy-articles/how-to-install-node.js-library-on-linux" %}
[how-to-install-node.js-library-on-linux](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/how-to-install-node.js-library-on-linux)
{% endcontent-ref %}

{% content-ref url="legacy-articles/node.js-vs.-c++-library" %}
[node.js-vs.-c++-library](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/node.js-vs.-c++-library)
{% endcontent-ref %}

{% content-ref url="legacy-articles/implementing-a-blynk-client-library" %}
[implementing-a-blynk-client-library](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/implementing-a-blynk-client-library)
{% endcontent-ref %}

{% content-ref url="legacy-articles/app-and-board-logs.-how-to-send-application-and-board-logs-correctly" %}
[app-and-board-logs.-how-to-send-application-and-board-logs-correctly](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/app-and-board-logs.-how-to-send-application-and-board-logs-correctly)
{% endcontent-ref %}

{% content-ref url="legacy-articles/blynk-android-permissions-explained" %}
[blynk-android-permissions-explained](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/blynk-android-permissions-explained)
{% endcontent-ref %}

{% content-ref url="legacy-articles/getting-started" %}
[getting-started](https://docs.blynk.io/en/~/revisions/ynmC8lZ6FPocTYWigjcO/legacy-platform/legacy-articles/getting-started)
{% endcontent-ref %}