GPS Module Battery

1

Hi Support Team,
I received my new GPS Module today.
Unfortunately there is no documentation on how to add a battery holder and which type is needed, neither what battery type is needed.
I saw a picture of a GPS Module in this Forum with a mounted battery holder. My GPS Module is “blank” on the back…
Can you help me?

BR Peter

2

Hi,
the battery is not needed. Which revision do you have?
We forget to publish schematic. I fixed that https://github.com/bigclownlabs/bc-hardware/tree/master/out/bc-module-gps

The RAM in GPS is now backed by voltage from battery module over the I2C expander and pin P7.

We decided to not use battery because there was a collision with Core Module JTAG if the battery was present.

If you have older revision with battery footprint, there should be a tiny wire that connects VDD with V_BCKP.

3

Hi Martin,
I own revision.1.2.
Thanks for publishing the new schematic and for your clarification.

BR Peter

1 Like
4

Hi Martin,
you should revise your GPS Module description in your shop… :slight_smile:
" * Optional battery holder on the bottom for faster cold starts"

BR
//Peter

1 Like
5

Thanks for pointing that. :+1: Fixed.