Help.blynk.cc/hardware-and-libraries/arduino/esp8266-with-at-firmware

No problem.
If you are using the Wemos D1 Mini or D1 Mini Pro (my favourite boards for most simple applications) then you might want to read this…

And if you’re trying to use them with Edgent then you should probably read this too…

If the D1 Mini doesn’t have enough useable pins then I’d reccomend going to the ESP32 rather than an Uno or Mega based solution.

Pete.