chipmc
May 10, 2022, 12:42pm
4
@GJMorrison ,
There is a way to do this but it requires external hardware (a watchdog timer) that can pull he Enable pin on the Boron low for 30 seconds. This may not be an option for you but, in case it is...
I have built such a carrier using the approach outlined int he Particle Application Note:https://docs.particle.io/datasheets/app-notes/an023-watchdog-timers/
Here is the board, all open source:
I think I need to put a Real Time Clock on this board to enable sleep and improve time based functionality. There are two BIG reasons for this:
The 3rd Generation devices have no real time clock so the cannot do time functions (like Time.minute()) until they connect to the network.
You cannot use wake on time for DEEP sleep preventing lowest energy usage.
Thoughts? Comments?
I will post a new design once I have it.
Thanks, Chip
Chip