# Notecard Watchdog triggering prematurely

**URL:** <https://discuss.blues.com/t/notecard-watchdog-triggering-prematurely/830>\
**Category:** Notecarrier A\
**Created:** [May 16, 2022, 7:06am UTC](https://discuss.blues.com/t/notecard-watchdog-triggering-prematurely/830 "2022-05-16T07:06:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![NathanJC](https://avatars.discourse-cdn.com/v4/letter/n/9fc348/32.png) [@NathanJC](https://discuss.blues.com/u/NathanJC)\
**Post date:** [May 16, 2022, 7:06am UTC](https://discuss.blues.com/t/notecard-watchdog-triggering-prematurely/830/1 "2022-05-16T07:06:07Z")

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Hi there,

I’ve been looking into running a watchdog on the Notecard as insurance in case my host processor (ESP32-s2) locks up. I have connected the Notecard’s ATTN pin to the ESP32’s RST pin and have communication between the two via I2C. In the setup() function in the ESP, I am sending a card.attn request to the Notecard to switch the ATTN pin into watchdog mode and am passing a 4200 seconds wait interval.  
I started to notice that the ESP was often starting to run for 30-60 seconds before it reset itself. This reset would only occur once on start up. After much testing, I did find that this only occurred when I would send the card.attn request to the Notecard and that the reset wire would be pulled low for 1 to 2 seconds at the time of the ESP reset. Would anyone know why this reset is occurring? I have multiple other requests to the Notecard occurring, so there shouldn’t be any reason for the Notecard to trigger the watchdog.  
Would appreciate your assistance. Thanks