thanks very much, so i will use pins GPIO 0/2/36/39/34/35/32 as input push button normally open with pullup resistor to 3V3 and GPIO 4/16/17 for sensor input and GPIO 33/25/26/27/14/12/13/15 as output is it ok or use in this way can cause issue on operating or damage to the board? best regards, Sayed

my requirement is 9 output, 7 input for push button, 3 input for sensors, Sd card
i am switching from ESP8266 Nodemcu 12E, since this ESP32 has more GPIO
i hope there is chance to get these pins to be enough
best regards,
Sayed

Hi,
any body can help me with which pins is available to use as GPIO?
which one pins is used by ESP flash?
which SPI pins can be used as SPI for sd card? HSPI or VSPI? if one of them in used the others can be used as GPIO?
which GPIO remaining will be available as GPIO?
Best regards,
Sayed