pins available on the WROOM 32

[kbaud1]

Ok, didn't find a handy list anywhere so made my own:

GPIO
0*
1
2*
3
4*
5*
6-11 are used by SPI flash exclusively
12*
13
14
15*
16
17
18
19
20 is not there
21
22
23
24 is not there
25
26
27
28-31 is not there
32
33
total GPIO: 22 pins

GPI (input only)
34
35
36
37 not on WROOM
38 not on WROOM
39
Total: GPI 4

Total of both GPI and GPIO: 26 pins

* = strapping pins. Only available as GPIO after boot.

[WiFive]

Now put an asterisk by the strapping pins.

[kbaud1]

Added asterisks.