Teyleten Robot ATGM336H GPS+BDS Dual-Mode Module Flight Control Satellite Positioning Navigator Replacement NEO-M8N NEO-6M for Arduino 2pcs

Added GPS to my Lilygo T-Deck lora devices - working perfectly

These are great very small GPS modules useed in many DIY projects and my favorite. A very useful softeare called GNSSToolkit2 is available for testing and configuration. I keep a couple on hand and they are my go to CPS module of chice for DIY builds.

I had a little bit of trouble with Tx and Rx, but that is a me problem. Once I connected properly, it functions flawlessly. Super easy, great value.

This is an inexpensive alternative to name-brand u-blox M8Q/M10Q GPS/GNSS modules (also available on Amazon). I haven't compared this feature-for-feature to the more expensive devices - and they'll likely exceed the capabilities of what this can do - but it'll probably do just fine for most hobbyist uses. I was able to use this without any special magic on an ESP32 project using the TinyGPSPlus library. I have no problems getting a position fix even though I'm doing my development work indoors (drywall ceiling, insulation, plywood-and-shingle roof). This is really small; the module itself is about the size of a US dime. If I have any issue at all, it's that the antenna is separate from the module, with a short cable with a U.FL connector on one end to connect to the board. I'm used to the self-contained u-blox devices that are (larger) all-in-one modules so I don't have to figure out where to put the antenna. But: Depending on your use you may find that to be an advantage, since that means you can bury the module deep in your project and then use the short length of cable to position the antenna with a better view of the sky, or perhaps even use a different antenna for greater sensitivity. All-in-all I'm very happy with this module and am ordering another for my next project.

I was working on a project comparing location fixes by the different satellite constellations. This gps module was included in my testing. I pasted the GPS stream into a chatgpt session and it commented back that the signal was decoding BD signals better than any of the other expensive modules that I was using from various vendors. I suspect that this one is tuned for the BD consultation. It was quick at getting a fix and I had no issues pulling down the data stream over UART as expected. It is a nice, small, inexpensive module that gets the job done for any project needing a location fix.