BN-880 GPS Module U8 with Flash HMC5883L Compass + GPS Active Antenna Support GPS Glonass Beidou Car Navigation for Arduino Raspberry Pi Aircraft Pixhawk APM Flight Controller

Very sensitive. GPS which easily gets a fix indoors, something my handheld gps cannot do. Note that the compass output is separate from the GPS output. GPS uses Tx Rx and outputs NMEA sentences. Compass uses I2c and outputs integers that are proportional to the X,Y,Z magnetic field. The compass output can be converted to a direction, but only when the unit is level. You need an accelerometer to make the equivalent of a gimbaled compass. Both the compass and GPS work well, but it's better to think of this thing as two devices that use a common power supply than one integrated unit.

Small footprint, very quick fix. In order to use the module with the Arduino, I soldered an angle connector to the holes in front of the socket, see attached photo. Note that the default, out of the box, baud rate for the unit I got was 9600, not the 38400 listed in the product description.

This thing is thick, warm, and accurate (why I’m rating those characteristics heaven only knows). What it’s not, it’s not good for high speed arduino projects like planes or rockets where you want telemetry data fast. Serial is slow, and you’re better going with systems that can use faster communications channels.

Works like I expected. There are a couple of things. First the wiring harness is not setup for my controller. It is way to small (1.0 pitch) to be able to redo the JST connector so I had to remove the plug and hard solder directly to the board. This is easier then trying to redo the JST connectors but still difficult. The second issue is that the GPS can take a few minutes to acquire enough satellites to acquire fix the first time out for the day. After that it may take 30 second each time. This is little longer then expected.

Used in a matek f411 build with inav. Plug and play. Great functionality.

Once it has a lock this works great, however the tiny super cap they use discharges very quickly once power is removed, leading to loss of data and a much longer several minute lock time.

Great gps, bought 2 for a couple multicopter builds I’m working on to test out experimental gps functions in Betaflight. Gps and compass lock on quickly (after first initial power on). Come’s with a few connector options but for me I was able to solder directly to one flight controller while the other flight controller requires a 6pin jst-sh connector which doesn’t come with this product so I had to find a source for that connector before getting it to work.

Didn’t work. Would not power up