ESP32S Module AI Thinker - GPIO datalines

[SirrCharles]

Hey guys,

I'm working on a board featuring the ESP32S module.

I found a eagle library from MarcoYau:
https://github.com/MacroYau/MacroYau-Eagle-Libraries

This library features the AI Thinker ESP32S module. Since the datasheet provides no warning about using pins like in the SD_CLK, SD_DATA and others, i'm wondering if i can use all GPIO pins on the module?

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SoC ESP32 Datasheet ||October, 2016||
pins GPIO16, GPIO17, SD_CMD, SD_CLK, SD_DATA_0 and SD_DATA_1 are used for connecting embedded flash, and are not recommended for other uses.
https://www.espressif.com/sites/default ... eet_en.pdf

ESP-32 MODULE Datasheet ||October 3, 2016||
Provides no information.
http://www.es.co.th/Schemetic/PDF/ESP32.PDF

ESP-WROOM-32 Datasheet ||May 4, 2017||
Pins SCK/CLK, SDO/SD0, SDI/SD1, SHD/SD2, SWP/SD3 and SCS/CMD, namely, GPIO6 to GPIO11 are connected to the integrated SPI flash integrated on ESP-WROOM-32 and are not recommended for other uses.

https://www.espressif.com/sites/default ... eet_en.pdf
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My small stepper driver has 7 pins that need to be controlled very vast in a PWM syle manner, but the codes provides the timing vs true PWM.:
A1
A2
PWMA
B1
B2
PWMB
STBY/SLEEP
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Check my schematic:
http://i.imgur.com/QZuDL04.png
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Question:

What Pins can be used on the ESP32S for driving my driver and what pins will Cause problems?

Is the ESP32S identical to the WROOM module?