GPS sensor is needed for every autonomous features, this sensor provides:
position with Lat/Lon coordinates and altitude,
velocity
time
Preferred protocol is UBX, more efficient than NMEA and should provide a most accurate velocity state.
Another thing to consider when GPS features are wanted: refresh rate, at least 5Hz.
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GPS can be connected to the Main Port Flexi Port or FlexiIO (Revolution), optional I2C mag can be connected to FlexiPort. (16.09 release) Be sure the Tx/Rx lines are crossed and external power source (+5v) is connected or board cannot talk with GPS.
MainPort / FlexiPort pinOut
Color
Pin
Electrical limits
Serial function
I2C function
Image Modified
Black
1
GND
GND
GND
Red
2
4.8V - 15V
PWR Out (VCC Unregulated)
PWR Out (VCC Unregulated)
Blue
3
3.3V
TX
SCL
Orange
4
3.3V (5V Tolerant)
RX
SDA
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Naza GPS
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This GPS own a magnetometer, the position and magnetometer data are send to the board using DJI protocol. Can be connected to the FlexiPort, MainPort or FlexiIO (Revolution). Others ports left can be used for telemetry.
