Esp32 nodemcu GPIO

Question

I am using esp32 nodemcu where I am using 16 GPIO pins in it for turning it HIGH and LOW as per requirement. When I power up nodemcu GPIOs are involuntarily being in HIGH state. I want to keep the GPIOs LOW on booting and only HIGH when I prompt to do it. Is there any simple method to do it. I am using arduino sketch programming.

Answer 1

You can try to use this function call with these variables. You can call this function at your setup loop.

pinMode("your pin number here without the "" ", INPUT_PULLDOWN);