Most GPS’s only use 4 wires, and is straightforward. But the BN-880 is a bit different which can be confusing…
Regular GPS
- Ground
- Power
- TX
- RX
Deluxe GPS
- Ground
- Power
- TX
- RX
- SDA
- SCL
But the BN-880 has 6 which can be confusing, the two additional wires are for the build-in compass, and must be connected to SDA and SCL.
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