C94 M8P J8.1 V_BAT - Is it in or out?

0 votes
Hi there,

 

I am trying to connect a Hardware to the C94. Is the Jumper J8.1 V_BAT IN or OUT, meaning does it provide with electricity or is it to provide the C94 with electricity?

I am only measuring 2.9V. Can this be?

Is there a way of getting 5V on the C94?

 

Regards
by sTec asked May 16
by sTec edited May 16
30 views
0 votes
It is not designed to power external devices. The connector is designed to attach a GSM Modem, you can't supply 2A to such a modem via USB.

The schematic indicates that the header V_BAT pin is common with the screw down power input connector, and will be whatever voltage you apply there. ie 3.7 V to 12 V

https://www.u-blox.com/sites/default/files/C94-M8P-AppBoard_UserGuide_(UBX-15031066).pdf

I've seen docs where they should how to pull the regulated board supply off the end of one of the capacitors. Review the schematic.
by clive1 answered May 16
Thank you anyway, clive1.
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