DIYmall DY-180TTL GPS Module Navigation Satellite Positioning with Passive Antenna GPS Receiver for Arduino Raspberry Pi Pixhawk Aircraft CC3D F3 Flight Controller

I bought this because many of the comments about this product said it was easy to use, including with an Arduinio, except the fine print says it's a replacement part for something NOT Arduino, so there are no official schematics, API, or sample code to copy on the company's website (or anywhere else) to be able to use it on an Arduino. I also noticed (too late) that some of the photos by commenters was not of the product listed or received, and failing to notice that is a mistake I should not have made. Nevertheless I took an educated guess anyways that it was an ASCII based CLI, downloaded ADAFRUIT_GPS from GitHub, and got it to work (you still need to write real life code to do what you want it to do though but it is a good start). The wiring to make this work on a Arduino Uno can be found by looking at the code and looking at a lone jpg for the pinout of the provided GPS cable:BLK --> GNDRED --> 5V (or 3.3V)BLU --> 8GRN --> 7The code does need to be changed because the default baud rate is 9600, and there is no documentation of how to program the GPS item. The only code that works is for the files prefixed with "GPS_Software" (don't use "GPS_Hardware" or "GPS_I2C") and change one line, the line that says "Serial.begin(115200);" and change it to "Serial.begin(9600);", then open a Serial Monitor from the Arduinio IDE and watch it work.Not recommended for beginner programmers

I haven't found anything bad to say about this unit. If something comes up I will edit. For $9 and some change and at my door the next day, wow. I just stuck it on U-center and wow. U-center reports MN8. This thing got 8 GPS and 3 GN achieving 3D lock in <2min next to my building wall with only half the sky in view. Wow. The other 180 for $5 more didn't come close. Thank you DIY mall and what other gems are you hiding?