Pin 17 and 1 for output ESP32

[dkmar11]

hi, i am using pin 1 and 17 as output, but the state doent change, i need this pin because i have many outputs, could somebody help me?

thanks a lot!!!!

[red_car]

Looks like you have the other side of the LEDs connected to GND.

If you expect a LOW signal to light the LED then you need to have the LEDs connected to 3.3/5v.

Otherwise a HIGH signal is required to light the LED.

Also make sure the LEDs are the correct way around.

[Idahowalker]

You cannot use GPIO_NUM_1, under the Arduino IDE, as an output. That is one of the programing port pins.

[dkmar11]

i reviewed and that is ok

[Geek_Emeritus]

do not use

pins 0,1,2,3

pins 6 - 11 are used to program internal flash and are usually not made available.

pin 35 is battery voltage - do not use, research what it does

pins 32 and 33 may be output only.

pins 34, 36 and 39 are input only.