ESP32 Forum

Posted: **Thu Mar 14, 2019 2:13 pm**

Hello experts

my question is i have a slave device connected to my ESP32 and i need to reset this slave device at some time
the reset pin of the slave device is connected to my GPIO pin

please see attached picture

: gpio_pin.png (166.68 KiB) Viewed 4307 times

I want to put a GPIO pin in high impedance mode at boot up time

After 1 second Then i want to pull this GPIO pin to ground so that value is 0 for atleast 2ms(slave device resets)

Then i want to put it back in high impedance mode again

can some one tell me how i can achieve this can some one give me example code i am using Arduino ide and pin mode in Arduino ide has
INPUT,OUTPUT, INPUT_PULLUP.

Regards

Posted: **Fri Mar 15, 2019 2:23 pm**

Moved to the Arduino subforum as you seem to want a solution specifically to that SDK.

Posted: **Fri Mar 15, 2019 2:37 pm**

Are you using freeRTOS?

something like, if not using freeRTOS, set pin 1 or 0, delayMicroseconds(x), set pin 1 or 0?

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