Blynk iot 2.0 with arduino mega and esp8266

[Nik_Zainal]

how to make a blynk 2.0 connection with arduino mega digital pin 16 to 52 … setup hardware arduino datastreams digital pin 0 - 13 only.

[PeteKnight]

Digital datastreams aren’t implemented in Blynk 2.0 yet.

Read this about how to use virtual datastreams…

Using Virtual Pins to control physical devices

I thought I’d write a guide about how to use virtual pins with app widgets such as buttons, to control physical devices such as relays, LEDs etc… Why use virtual pins anyway? I’d always recommend using virtual pins over physical pins when developing your code. There are a number of reasons, but here are what I consider to be the main ones: Virtual pins are hardware independent. This means that it’s far easier to port your code from one hardware platform to another in future (when you realise…

Pete.