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A comment on We're making an open-source $30 GPS/mesh radio, would like advice. Parent comment

Re:We're making an open-source $30 GPS/mesh radio, would lik... by alfla on Wednesday March 11, 2020 @08:21AM (#22545153)
If the nodes have GPS it's fairly straightforward to calculate distance and bearing.
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Re:We're making an open-source $30 GPS/mesh radio, would lik... by reisr3 on Wednesday March 11, 2020 @10:04AM (#22545914)
Right, and accuracy of ~9m makes sense for this application. The smaller supported ESP32's, however, don't have onboard GPS. Does it use RSSI or need to be paired with a phone?

Not that it's really relevant here, but I'm wondering if the LORA RSSI can be used to determine distance inside 9m.

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