Drive multiple a4988 drivers from esp32

[acroscene]

I will drive multiple a4988 drivers running nema17 from esp32

This i pretty much my setup but instead of 3.3 volt I will use 5v for the esp32 power supply and 12 volt for the stepper motor supply
https://cdn.hackaday.io/images/4997571490134825649.png

I have calculated the a4988 current limit to approximately 0.5 v and the Imax for the nema17 is 700mA.

My question is how can I calculate how much current it will draw for multiple (say 10pcs, 20pcs, 30pcs and so on of a4988):
- 5v (VDD) input on the a4988?
- 12v (VMOT) input of the a4988?

I guess I need to add them together but I am not sure how to calculate the current for each one of them.

Of course it will be to much current for powering directly from esp32 but since Im new to esp32, do esp32 have an 5v output similliar to Arduino and in that case how much current can you draw directly from esp32?