Hello folks.
I got a project here, where I need to send a notification to tower after 2 minutes after power outtage. The device must last 15 years, so I don’t want to use lithium Ion battery, or at least will try not to.
I would like to use super caps. Is there a way to put this modem to sleep for 2 minutes without disconnecting from tower?
Thanks
Hi vladlozo1,
Not sure about the battery/supercap design, believe you want WP to operate in low power consumption during 2mins and keep network registration?
If that’s the case, you can refer to USB-SS mode in PTS for details.
https://source.sierrawireless.com/resources/airprime/hardware_specs_user_guides/airprime_wp75xx_wp8548_product_technical_specification_rev_13/
Thx
Hi @vladlozo1
Which module you use?
Most model of WP76xx have ULPM mode.
You could use a timer(few second to few day) to wake-up module.
In ULPM, module will entry deep sleeping and no any network connection.
However current consumption able down to <50uA(depending model).
You could also consider PSM mode(supported ALL WP76xx), if you need more function support. However the current consumption will higher than ULPM mode.