Exit deep sleep with IO interrupt OR timer

Hardware (and firmware) Dash
1

I am working on an application where I need to wake from deep sleep after x minutes or when a button is pressed -
whichever happens first. I have it working each way, but not both. If this is possible it wasn’t clear how to make it happen. I am thinking it is possible with some low level commands. There is a great library for the Teensy which returns an int telling which wakeup was triggered - GitHub - duff2013/Snooze: Teensy Low Power Library - but I am not sure how / if something like that would be possible.

Anyway - its not super pressing for us right now but I figured I would start to look into this for future revisions.

Thanks!
Tyler

2

Are you using Dash.attachWakeUp() for the IO interrupt, and then calling Dash.deepSleepAtMostMin()?

Dash.lastWakeupSource() will return an int for the wake up source. Refer to the datasheet for the specific values.

3

Hey Erik - yep after I had coffee today I re-read the documentation. I was looking at Dash.deepSleepMin() thinking it was Dash.deepSleepAtMostMin() .

Thanks for the quick reply!