How waterproof can the Postcard printable enclosure be?

GPS/GNSS
1

Hi, I am researching making a small multi-band GPS device and the Postcard+Port. Shield, etc, seem to make it as easy as it’s going to get. I am concerned about how water-tight the enclosure is. I’m not expecting to reach IP67, but I don’t want to have to worry about it. I’m used to using a garmin glo, with just a few indicator led’s.

I’m wondering if I could achieve that if I left out the shield and put the board in a clear waterproof enclosure with holes for just the USB and antenna (and something for boot/reset/power). It seems that I’d at least have to add back a charger in this configuration. Would I be able to achieve my goals using the 290P-only breakout and the ESP32-C6 Pocket Dev Board ? Can that board run the RTK Everywhere firmware?

Thanks,
Greg

2

Eh, if you made a few edits to the model, and gave it a sealing surface (either o-ring, or print some with TPU)

The bare breakout https://www.sparkfun.com/sparkfun-quadband-gnss-rtk-breakout-lg290p-qwiic.html runs quectel firmware…in theory you could modify the esp32’s code to run RTK everywhere, but it probably won’t be very simple or easy - You’d need to customize tquite a lot to get that going

I’d sooner just grab the Postcard or one of the other RTK everywhere models if wanting to run RTK everywhere