I am trying to make a smart door lock using Arduino where when I push a button on my phone using Blynk a servo rotates, and I can’t figure out how to do it and I haven’t found anything online that could help. Can anyone help please?
There are plenty of exemples in the web.
What doesn't work exactly?
Does the servo move correctly with a simple sketch like: file > examples > servo > sweep?
If you want the servo to move to a specific position wehenever a blynk button is pressed, you need to learn how virtual pins work and how to manupulate them.
The servo I'm using is a Standard Size - High Torque - Metal Gear Servo, Tower Pro MG995R
I want to try and get my servo to rotate 90 degrees when I press a button and rotate back to its original position when I press the button again. I've tried using digital pins since I don't really know how virtual pins work.
Post the code you have so far.
Virtual pins are probably a good way to go - check out the Blynk examples to see how they work.
I haven't made any code for it, but I will most likely try the code from this example someone put in the forum.
My goal is to make the servo rotate 90 degrees and back when I press a button on blynk.
It's a good start. Remember to choose the right board and connection method you are using.
Good luck 
I am trying the example you had put and it does not seem to work.
I am trying to rotate a servo using a slider from an example code found here:
I followed all the steps, I put in the necessary information ran it and nothing happened. Can anyone help?
@teddy2s6, please do not cross-post. Threads merged.
Only if you can provide more information. So far all you have said is “I did what I was told and nothing happened”.
So unless you show us exactly what you have done we can’t help.
For a start a good clear photograph or two showing your wiring would help. What also would help is if you tried to run a simple servo example and not bother with anything else, so that you know your servo works.
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