NEO-M8N GPS Compass Module for Pixhawk and APM

Using an FTDI TTL USB converter to connect to Windows 10 and Raspberri Pi 3B+. Wired it up and it just works. Used the U-Blox U-Center software on Windows. Surprised I was catching 10 satellites and 3D lock on my desk! Using U-Center, I was able to make some tweaks I needed. Using this for an APRS radio project. Works great with gpsd on Linux.

Removing one star for the lack of documentation and the inaccurate / outdated product description. Maybe it isn't an issue for the Pix/PX4, but anyone intending to use this with a raspberry pi like I was will hopefully find this review helpful. First, the GPS module is not the uBlox NEO M8 but rather the NEO M10. I can't seem to find any documentation on the NEO M10 on uBlox's website, but maybe that's because it's new. It otherwise seems legit. For the serial interface, the baud rate is not 9600 but rather 38400 and it uses 7 bit bytes instead of the usual 8. Haven't tried it with the windows U Center software, but PyGPSClient can parse the NMEA frames without issue once those two settings are updated. Performance is impressive, with fairly quick lock from cold start even indoors. Second, the magnetometer chip is not the HMC5883L but rather the IST8310 (which includes temperature sensor output as an unadvertised feature) and the I2C address is 0x0e and all the measurement registers are different as well, so any code written for the HMC5883L won't work with this device. Documentation issues aside, it's a dandy little GPS puck that integrates well into hobby projects beyond just drones. With a crimping tool you can replace the JST connectors with DuPont connectors to interface directly with Arduino or Raspberry Pi GPIOs. Too bad there's no option to buy them directly with DuPont connectors. Will probably buy several more now that I know how to use them. Only wish the cable was longer.

I’m giving this product a 3/5 stars for the lack of documentation. I received a Neo m9n module, with the baudrate being 115200 instead of the advertised n8n. If you do get this please open up the plastic shell and check which model of gps you have. For someone like me, this works on an esp32 with tinygpsplus, and tx/rx being on pins 16/17. I suggest clipping off the stock connectors and crimping dupont connectors to it for ease of use with breadboards/header pins.

El mejor gps del mundo. Es insuperable. Se conecta muy rápido y es de excelente calidad.

Was expecting the Neo M8N but instead got NEO -M10 Seems very good. Default baud rate is 38400 and not typical 9600. Getting 26 satellites inside my house while receiver is on my desk.

Bought this as a drop-in, 1-on-1 replacement for a seemingly identical product used in an AHRS from Helios Avionics that was an out-of-the box failure and where the manufacturer Helios determined that the GPS receiver was faulty. It helped that the two GPS receivers not only looked identical, but that also the connectors, the wiring of the connectors and the Baud rate (here 38,400) was identical. There is no documentation for the GPS receiver. However, the product description on Amazon says that the default Baud rate of this receiver was 9,600 Baud. That is incorrect, the Baud rate - at least for the part that I received - is 38,400. The product description also says that it "is easy to adjust", but doesn't say how. I knew however how to adjust the Baud rate that the AHRS was expecting (remember, I assumed that new GPS receiver was sending 9,600 Baud). With a bit of trial and error, I could confirm that this GPS receiver indeed sends at 38,400 Baud, and no further adjustments downstream were needed. With this new GPS Receiver my Helios AHRS now works fine.

Works great for my needs. Running at 5hz output it gives me the accurate speed output I was looking for, even without the best view of the sky.

As other reviews state, the module inside is of high quality, but the instructions and baud rates could be different than what is stated in this listing.