Is it possible to turn off power to the GPS independently from the IMU?

[ODU-UAS-TEAM]

Hello, I was hoping somebody on here could answer a question for my team and I. We are currently designing a UAS for our universities aerospace engineering capstone  assignment. Part our projects requirements is to disable our GPS  and fly unguided for the duration of our mission. Would the Berry GPS-IMU Be capable of powering down JUST the GPS leaving the IMU operational? If so does anyone have any advice or resources on how to do this that they would be willing to share?

Thank you!

[ODU-UAS-TEAM]

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GPS External Interrupt(EXTINT) An external interrupt pin which can be used for wake-up functions in Power Save Mode and for aiding.

uSCL and uSDA uBlox GPS Display Data Channel (DDC).

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This appears to be on track with what we’re looking for, but we don’t have much knowledge in the from of drone technologies. Can anyone verify if this is the answer to our question. Does this feature allow us to toggle on and off the GPU with leaving the IMU Operational?

Than you again so much for your help!

 

[PeterP]

This can be done through the serial interface by sending UBX protocol commands
Stop GNSS;
echo -e -n "\xB5\x62\x06\x57\x08\x00\x01\x00\x00\x00\x50\x4F\x54\x53\xAC\x85"> /dev/serial0

Start GNSS;
echo -e -n "\xB5\x62\x06\x57\x08\x00\x01\x00\x00\x00\x20\x4E\x55\x52\x7B\xC3" > /dev/serial0

I hope this is what you are after.

The UBX protocol is a bit cryptic, but it is powerful.   it is documented here

Peter --OzzMaker.com --

[ODU-UAS-TEAM]

Thank you for your help!

[Author]

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