Hands-On Internet of Things with Blynk

Using virtual pins

These steps will explain how to use virtual pins to control the color of an RGB LED:

1. Tap Joystick to open the Joystick Settings page:

Joystick Settings

2. Tap PIN under OUTPUT. From the drop-down list, select Virtual, followed by V1. Then, tap OK.
3. After selecting the virtual pin V1, your Joystick Settings page should look like this:

Joystick Settings for virtual pin V1

4. Don't change the other settings, such as AUTORETURN, ROTATE ON TILT, and WRITE INTERVAL:
   • AUTORETURN: When OFF, the joystick handle will not return to the center ...