Ultimate GPS Breakout 66 Channel Module with 10Hz Updates Version 3, Blue

I bought this little GPS for an on-line class and this little GPS works great! Even though I had to solder the header pins myself (this was my first soldering job on a semi-expensive (to me) breakout board. Was a little timid to do it but I got 'er done without smoking the internals and the board works great. I wish Adafruit would pre-solder these but I may need the skill later on... I was able to find some sample code to read, interpret and output in plain english what the GPS satellites are saying on the Adafruit website. I did purchase an external antenna as I could not pick up a signal in my basement, now I'm seeing 29 of them! Pretty snazzy and if I input the coordinates into a mapping program, there I am. Really looking forward to digging into this device in the class I'm taking and learning more about the GPS network. Nice device!

Setting up with Raspberry Pi 4B and DietPi with Tunerstudio for Speedometer of PiDash. VIN (GPS) to 3.3V on Pi, GND (GPS) to ground on Pi, RX (GPS) to TX on Pi, TX (GPS) to RX on Pi. Use DietPi-Config / option 4 : Advanced Options / Serial/UART to make sure ttyS0 console is off and ttyS0 (mini UART) device is on. I used CuteCom to set the baud to 115200 and refresh rate to 10Hz. Default GPS unit is 9600 baud and 1Hz. Start with CuteCom set to 9600 and send $PMTK251,115200*1F to change baud. Change CuteCom to 115200 baud and send $PMTK220,100*2F to change refresh to 10Hz. Make sure you have the battery backup installed in the GPS or else it will revert back when powered off. In Tunerstudio Beta (there was a problem with GPS which I don't know is fixed in the stable release yet) use Communications/ GPS Configuration to set up. See pic for details. I am using it with an external antenna so I can't comment on the internal one.

I built a dash cam using a raspberry pi and I’m using this GPS to show speed, coordinates and addresses and it’s been very accurate and reliable. I did add the backup battery. Adafruit has always delivered high quality goods at a very affordable price. The small footprint allows for a smaller enclosure.

I honestly couldn't be more pleased for the price. This cute lil unit is pretty frickin accurate even without an external antenna(Not for use indoors). It interfaces beautifully, and outputs standard messages reliably. I will be reusing this module in my future projects, without a doubt(Unless someone manages to make a significantly cheaper unit with the same reliability(unlikely)) Good product is good

I'm not exactly a ninja with a soldering iron, but this kit (OK, it's just a matter of soldering the pins on, but like I said, I'm no ninja with the iron) was easy to assemble. The manufacturer's website has a really good set of documentation for both Pi and Arduino connections, and I got mine online in a minimal amount of time via a breadboard. On warning (not this components fault at all); make sure you get the right pigtail to connect it to an external antenna. Adafruit has the right one listed, and you can find it here on Amazon too.

UPDATE: I've had time to continue to collect various data points and program this and a NEO-6M (both in CircuitPython/Python and Arduino's C/C++. I've decided the Adafruit Ultimate GPS is decent for most beginner projects (Adafruit's goal as I've read from them....I'm certainly a huge fan!). In Western Washington, it closely meets its' spec of being within 3 meters when I'm in a cul-de-sac without trees or buildings for 10-12 meters. I had one-time, single position under 2 meters, but this is a single data point from many. Generally, it seems to put me about 6-10 meters from where I actually am for this region. In the Great Flat Plains of Kansas, where the only thing in sight is the edge of the Earth in all directions, it is better being within 2 meters. Taking the same positions from my NEO-6M, the NEO-6M just puts me spot on (<1m) with every data point in Kansas and within 2-3 meter's from some of the difficult places in Western Washington. Having spent several hours programming both, I think the CircuitPython makes the Ultimate GPS a super product to get going. There might be better accurate data from this device as NMEA sentence it pulls data from, the GPS position is slightly different than at least one other sentence. This might be why the NEO-6M presents better, the CircuitPython pulls the information from a different NMEA sentence on the NEO-6M. My to-do list is to compare the sentence information from the same chip. Original Review: This took a couple hours to get setup using CircuitPython on a Feather M0 Basic. It doesn't pick any signal up inside (unlike NEO-6M I also purchased). Once outside, it took a while to pick up signal, but was extremely stable in the location values it produced (where as the NEO-6M picked up immediately, although its' values had some flutter to them). I'm looking forward to using both.

I bought this for a GPS guided robot project using an Arduino. Works well and gets a lock with-in a minute even in doors. Some tips if you are going to use this on an Arduino: - Baud rate is 9600 - You really only need to hook up the Tx pin to the Arduino, RPi or PC. (I don't know what commands you can send to it anyway) - Use the "TinyGps" library in your project [...] to parse the NMEA strings from this GPS. - No extra serial port? No problem! Use the "SoftwareSerial" library that is part of the Arduino IDE ... with that you can assign any of the Arduino pins to be an Rx/Tx pair. - I soldered header pins to the bottom of the board so that the GPS antenna can be free and clear of any wires. 5 stars because it does the job!

"Wird oft zusammen gekauft" Zeigt einen falschen Adapter! Dieser hat einen männlichen SMA-Stecker, ebenso wie die dort vorgeschlagene Antenne, allerdings diesen ohne Verschraubungsmutter wie der männliche Stecker der Antenne... daher funktioniert auch ein üblicher Weiblich-Weiblich Adapter dazwischen nicht. Ein korrekter Adapter wäre dieser hier, kostet mit 2,60€ auch weniger. https://www.amazon.de/gp/product/B00W8WIDMU Zum Breakout Board: Leider wird nur GPS (also das amerikanische) unterstützt, keine der neueren Technologien. Hier wäre schon lange ein Nachbessern seitens Adafruit nötig mit Wechsel auf den MT3333 Chip, statt des hier verwendeten MT3339. Der kann dann auch GLONASS, Galileo und Beidou und erreicht damit eine deutlich höhere Verfügbarkeit sowie eine bessere Genauigkeit. Gibts als Breakoutboard für wenig Geld, dann auch direkt mit SMA-Anschluss ... Ansonsten klappt alles, wie es soll. Mit einer Google-Suche nach "GPS PMTK_Protocol" finden sich übrigens die möglichen Befehle, die man an den Chip zur Konfiguration senden kann. Die Version von Adafruit ist dabei aber wohl nicht vollständig, eine andere Quelle also ggf. zu bevorzugen.

Wie genau ist der Standort mit der genauesten Einstellung?

Ein GPS-Modul mit herausgeführtem PPS-Signal ist nichts Besonderes. Die hohe Updaterate von 10Hz im Vergleich zum günstigen Neo-9M-Modul wird durch die extrem geringe Empfindlichkeit der eingebauten Antenne zunichte gemacht. Ohne externe Antenne ist dieses Modul definitiv nicht zu gebrauchen. Fazit: Es bleibt ein gemischter Eindruck von der Leistungsfähigkeit des Moduls zurück. In Anbetracht des hohen Preises spricht nicht viel für den Kauf. Ich werde in Zukunft wieder zum alt bewährten Neo-9M-Modul greifen.

The Item arrived a day earlier than expected. It operated correctly and continues to perform as expected.

Very disappointed in a high priced product. VERY slow to get a fix (up to 10 minutes in open ground) and one fixed, not very accurate. The best I could get after many trails was within 25m which is much less than I would expect. Not recommended. I would return it, but as I needed to solder the pins that's not an option. Do not buy this if you want a quick fixing and/or accurate GPS module.