Set the GPIO without pull, if input a voltage of about 1V

[Victor A]

I set an NOPULL type input GPIO, and I found that if I put in a voltage of about 1V,

the nrf52832 will  produce a current of about 30uA,

I want to know why it can be happen, can it avoid?,Thanks.

[ketiljo]

This is normal. The logic level of the input is not defined so the current draw will increase. All inputs must be defined to either low or high level. 

[Victor A]

Are there any methods to avoid it? Thanks.

[ketiljo]

Yes, make sure the level is defined. Use pull up or pull down resistors.

[Victor A]

Thank you so much.