Beitian BN-220 GPS / BN-880 GPS & Compass - ArduPilot

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Beitian BN-220 GPS / BN-880 GPS & Compass¶

Inexpensive, light, Dual Mode GPS and GPS/Compass using UBLOX M8N module

• Receiving Format :　GPS,GLONASS,Galileo,BeiDou,QZSS and SBAS

• Frequency : GPS L1,GLONASS L1,BeiDou B1,SBAS L1,Galileo E1

• Channels : 72

• Data Protocol : NMEA-0183 or UBX, Default NMEA-0183

• Single GNSS : 1Hz-18Hz

• Concurrent GNSS : 1Hz-10Hz

• BN-880 Compass IC: HMC5883L

Note

Small GPS modules with small backplanes, such as the BN-220, may take a long time to acquire sufficient stability of their velocity and position lock to allow pre-arm checks to pass when using EKF3 in Plane or EKF2 or EKF3 in Copter. Solutions are to either wait however long it takes for pre-arm checks to clear, increase the effective size of the ground plane by putting a larger square of aluminum foil behind the GPS (be careful not to short anything, insulating it from the GPS electronics!), or increase the value of the EKFx_CHECK_SCALE which controls the tightness of the pre-arm consistency checks to 120 to 150 (this is NOT recommended for Copter).