Esp32 Wroom plain old useable pins.

Other Hardware 3rd Party Boards
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I am starting a basic project that will use wireless for IOT.
I have a few sensors/buttons that are digital, and just one sensor that is analog. I will also be using RX/TX to communicate with a Nextion display.

I have read SO MUCH about what and when you can use certain pins. It seems like there are many pin conflicts that can cause problems.

Does anyone have a list of what Pins are truly 100% useable pins ( no matter what else is taking place ) without having to be concerned with and and all conflicts.

I also see that it has “ touch “ capacitance pins and I have no experience with them. Are they also universal to digitalWrite HIGH/LOW and also if they are able to digitalRead HIGH/LOW would any sort of touch cause interference with the digital read.

It sounded like a great board but I am quickly learning the spec sheets paints a different picture.

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That is not an easy question to answer. A lot depends on what variation you have of the Wroom. Look at the schematic and or ask the vendor. I went through this with a ESP a while back and it was a pain. Sorry I cannot help more I do not know what variation you have or where you got it.

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A good reason to buy from a company like Adafruit, even though their prices are higher than you'll find elsewhere, sometimes considerably so, is that they provide clear pinout and pin use information about their products. I found their ESP32 Feather very easy to use.

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