# Development Boards **URL:** https://community.sparkfun.com/c/global-positioning-system-gps/development-boards/117.md?page=2 [Latest](https://community.sparkfun.com/latest.md) · [Categories](https://community.sparkfun.com/categories.md) · [Tags](https://community.sparkfun.com/tags.md) **Page:** 3 --- ## [Looking for the best affordable GPS antenna design-](https://community.sparkfun.com/t/looking-for-the-best-affordable-gps-antenna-design/21683)
**Author:** [@trillium](https://community.sparkfun.com/u/trillium)\ **Replies:** 12\ **Last updated:** [September 1, 2011, 2:07am UTC](https://community.sparkfun.com/t/looking-for-the-best-affordable-gps-antenna-design/21683 "2011-09-01T02:07:36Z")
A friend of mine and I are trying to build and then document in laymen’s terms, a total RTK-GPS system that will be able to do very accurate (hopefully \<10 cm similar to high-end commercial systems) GPS positioning using… --- ## [How to recover NEO-F10N](https://community.sparkfun.com/t/how-to-recover-neo-f10n/59950)
**Author:** [@mickh](https://community.sparkfun.com/u/mickh)\ **Replies:** 13\ **Last updated:** [April 30, 2025, 7:53pm UTC](https://community.sparkfun.com/t/how-to-recover-neo-f10n/59950 "2025-04-30T19:53:30Z")
Hi, My mistake, I set the baudrate for UART1 to 1843200 (the highest setting) in U-Center. Now I can no longer connect via U-Center except in Safeboot. I can safely enter safeboot, but there is no downloadable firmware… --- ## [RTK-Guided Autonomous Rover – Advice Needed for Hardware Setup](https://community.sparkfun.com/t/rtk-guided-autonomous-rover-advice-needed-for-hardware-setup/64789)
**Author:** [@Holoax](https://community.sparkfun.com/u/Holoax)\ **Replies:** 4\ **Last updated:** [April 28, 2025, 3:35am UTC](https://community.sparkfun.com/t/rtk-guided-autonomous-rover-advice-needed-for-hardware-setup/64789 "2025-04-28T03:35:48Z")
Hi everyone, I’m Axel, new to the forum – so please forgive any rookie mistakes in this post :sweat\_smile: I’m currently working on an autonomous rover project that I’ve built myself. The goal is to have it follow a pr… --- ## [RTK Express Plus does not pick up any satellite](https://community.sparkfun.com/t/rtk-express-plus-does-not-pick-up-any-satellite/46459)
**Author:** [@Yasser1](https://community.sparkfun.com/u/Yasser1)\ **Replies:** 8\ **Last updated:** [April 21, 2025, 8:44pm UTC](https://community.sparkfun.com/t/rtk-express-plus-does-not-pick-up-any-satellite/46459 "2025-04-21T20:44:01Z")
Hello everyone I bought RTK Express Plus kit and RTK Facet. when I tried to test the RTK express plus, It couldn’t pick any satellite in view even though I followed the steps. I was able to connect to it through BLE on … --- ## [RTK Express + shows 0 satellites](https://community.sparkfun.com/t/rtk-express-shows-0-satellites/44062)
**Author:** [@rf1672](https://community.sparkfun.com/u/rf1672)\ **Replies:** 11\ **Last updated:** [April 21, 2025, 8:42pm UTC](https://community.sparkfun.com/t/rtk-express-shows-0-satellites/44062 "2025-04-21T20:42:28Z")
I bought a RTK Express kit. Received the kit with a Express plus and connected the antenna and powered on. The screen shows no satellites. 0. Left it sitting for half an hour and nothing. Should I send this back? --- ## [SW Maps – How is Ortho Height derived](https://community.sparkfun.com/t/sw-maps-how-is-ortho-height-derived/46117)
**Author:** [@dwight](https://community.sparkfun.com/u/dwight)\ **Replies:** 16\ **Last updated:** [April 14, 2025, 2:33am UTC](https://community.sparkfun.com/t/sw-maps-how-is-ortho-height-derived/46117 "2025-04-14T02:33:54Z")
I have an RTK Express and am using SW Maps. The RTK Express (not SW Maps) gets the RTK data from mount point P776\_RTCM3 at rtgpsout.unavco.org. SW Maps connects to the RTK Express using Bluetooth. I have not provided SW … --- ## [Unable to get RTK Fix on Postcard](https://community.sparkfun.com/t/unable-to-get-rtk-fix-on-postcard/64322)
**Author:** [@PT](https://community.sparkfun.com/u/PT)\ **Replies:** 16\ **Last updated:** [April 9, 2025, 9:21pm UTC](https://community.sparkfun.com/t/unable-to-get-rtk-fix-on-postcard/64322 "2025-04-09T21:21:04Z")
Hello, I received the Postcard last week and that’s about as long as my endeavor into GNSS/RTK has been. Complete Newbie. I have been reading up on the technology but my understanding is far from proficient and it’s been… --- ## [RTK Postcard & Portablity Shield not working on battery](https://community.sparkfun.com/t/rtk-postcard-portablity-shield-not-working-on-battery/64466)
**Author:** [@photinos](https://community.sparkfun.com/u/photinos)\ **Replies:** 7\ **Last updated:** [April 7, 2025, 10:52pm UTC](https://community.sparkfun.com/t/rtk-postcard-portablity-shield-not-working-on-battery/64466 "2025-04-07T22:52:14Z")
I have a Portability shield mounted on top of a RTK Postcard. Everything is working fine when plugged into USB. When I try to run off battery, It does not start and has a blank screen. No lights anywhere on either of … --- ## [Request a suggestions in Cost effective solutions in GNSS RTK for autonomous rover](https://community.sparkfun.com/t/request-a-suggestions-in-cost-effective-solutions-in-gnss-rtk-for-autonomous-rover/62233)
**Author:** [@Rakesh16](https://community.sparkfun.com/u/Rakesh16)\ **Replies:** 59\ **Last updated:** [April 7, 2025, 6:36pm UTC](https://community.sparkfun.com/t/request-a-suggestions-in-cost-effective-solutions-in-gnss-rtk-for-autonomous-rover/62233 "2025-04-07T18:36:37Z")
Hi everyone, We are currently developing an autonomous rover. To achieve precise localization and mapping, we are implementing GNSS RTK technology in stationary base and rover method. We are seeking guidance on what sui… --- ## [ZED-F9R board manufacturing site and USB interface](https://community.sparkfun.com/t/zed-f9r-board-manufacturing-site-and-usb-interface/64408)
**Author:** [@jimfriel](https://community.sparkfun.com/u/jimfriel)\ **Replies:** 2\ **Last updated:** [April 4, 2025, 2:19pm UTC](https://community.sparkfun.com/t/zed-f9r-board-manufacturing-site-and-usb-interface/64408 "2025-04-04T14:19:51Z")
Thinking about using the GPS-22660 kit. It looks like it can be powered, configured and data collected entirely over the USB port. Pretty sure there are other notes suggesting this works fine, for similar parts but want … --- ## [GPS-22693 (ZED-F9R) Hookup Guide Rx/Tx Reversed?](https://community.sparkfun.com/t/gps-22693-zed-f9r-hookup-guide-rx-tx-reversed/62959)
**Author:** [@Niels\_Smidth](https://community.sparkfun.com/u/Niels_Smidth)\ **Replies:** 3\ **Last updated:** [March 30, 2025, 5:22pm UTC](https://community.sparkfun.com/t/gps-22693-zed-f9r-hookup-guide-rx-tx-reversed/62959 "2025-03-30T17:22:10Z")
Hello, I recently tried to get a GPS-22693 (ZED-F9R) board running, trying to connect to a host via its UART1 interface. I consulted the Hookup Guide to get going, where it’s stated in the “UART1” section that: TX/M… --- ## [How do I save Lora Radio Settings](https://community.sparkfun.com/t/how-do-i-save-lora-radio-settings/46556)
**Author:** [@979becker](https://community.sparkfun.com/u/979becker)\ **Replies:** 11\ **Last updated:** [March 24, 2025, 2:03am UTC](https://community.sparkfun.com/t/how-do-i-save-lora-radio-settings/46556 "2025-03-24T02:03:35Z")
Good day, I’ve been trying to get the sprkfun lora serial radios to transmit rtcm correction data from my facet to multiple rovers. Evedently the default airspeed is to slow because the age on my rtk surveyors starts ou… --- ## [1PPS Signal on USB-C for NEO-M9N Breakout](https://community.sparkfun.com/t/1pps-signal-on-usb-c-for-neo-m9n-breakout/63635)
**Author:** [@svandive](https://community.sparkfun.com/u/svandive)\ **Replies:** 10\ **Last updated:** [February 27, 2025, 7:54pm UTC](https://community.sparkfun.com/t/1pps-signal-on-usb-c-for-neo-m9n-breakout/63635 "2025-02-27T19:54:11Z")
So there is another post in the community forum that is almost identical to this one, but that post simply didn’t go anywhere. I debated about adding to that older post or creating a new topic. Obviously, I opted for s… --- ## [Problems getting a green dot in SW Maps](https://community.sparkfun.com/t/problems-getting-a-green-dot-in-sw-maps/63203)
**Author:** [@luciano022](https://community.sparkfun.com/u/luciano022)\ **Replies:** 25\ **Last updated:** [February 17, 2025, 4:32pm UTC](https://community.sparkfun.com/t/problems-getting-a-green-dot-in-sw-maps/63203 "2025-02-17T16:32:15Z")
Hi everyone, I have successfully assembled my RTK Postcard board with the Portability Shield and updated the RTK Everywhere firmware. However, after connecting it to my GNSS Multi-Band L1/L2 antenna and using my own NTR… --- ## [Facet L-band v. Facet (standard) Which one to choose?](https://community.sparkfun.com/t/facet-l-band-v-facet-standard-which-one-to-choose/44153)
**Author:** [@BlackManOps](https://community.sparkfun.com/u/BlackManOps)\ **Replies:** 30\ **Last updated:** [February 16, 2025, 9:14pm UTC](https://community.sparkfun.com/t/facet-l-band-v-facet-standard-which-one-to-choose/44153 "2025-02-16T21:14:53Z")
Given the L-band requires the $500/year subscription, would I be better off using two Facet standards (as base/rover), or can I expect the subscription service to come down in price as more subscribers are signed on? Tou… --- ## [SparkFun Surveyor Wont Work with SW Maps](https://community.sparkfun.com/t/sparkfun-surveyor-wont-work-with-sw-maps/44267)
**Author:** [@jack\_strong](https://community.sparkfun.com/u/jack_strong)\ **Replies:** 14\ **Last updated:** [February 12, 2025, 10:48pm UTC](https://community.sparkfun.com/t/sparkfun-surveyor-wont-work-with-sw-maps/44267 "2025-02-12T22:48:51Z")
I bought the SparkFun Surveyor kit and have been trying to use it as a rover via SW Maps on my google pixel android phone. When I open the app, I can connect via bluetooth to the surveyor, however it does not generate an… --- ## [Zed-F9P no antenna power](https://community.sparkfun.com/t/zed-f9p-no-antenna-power/62599)
**Author:** [@Wocky1](https://community.sparkfun.com/u/Wocky1)\ **Replies:** 7\ **Last updated:** [January 30, 2025, 2:02am UTC](https://community.sparkfun.com/t/zed-f9p-no-antenna-power/62599 "2025-01-30T02:02:19Z")
I have a Zed-F9p RTK-2 and can not get a fix. There seems to be no power to the antenna, but pretty sure its turned on in u-center as per pics below. Antenna is a spark fun SPK6618H. I cant get a voltage from the antenn… --- ## [UM980 example code compilation error](https://community.sparkfun.com/t/um980-example-code-compilation-error/63053)
**Author:** [@Pancham](https://community.sparkfun.com/u/Pancham)\ **Replies:** 4\ **Last updated:** [January 29, 2025, 6:48pm UTC](https://community.sparkfun.com/t/um980-example-code-compilation-error/63053 "2025-01-29T18:48:01Z")
I recently purchased an SparkFun Triband GNSS RTK Breakout - UM980 for my project. I am using the library : GitHub - sparkfun/SparkFun\_Unicore\_GNSS\_Arduino\_Library: An Arduino library for the UM980 and other Unicore bas… --- ## [Request for Assistance with M7e Hecto RFID Reader - Pin Setup and Working Code](https://community.sparkfun.com/t/request-for-assistance-with-m7e-hecto-rfid-reader-pin-setup-and-working-code/62882)
**Author:** [@s1](https://community.sparkfun.com/u/s1)\ **Replies:** 8\ **Last updated:** [January 28, 2025, 6:55pm UTC](https://community.sparkfun.com/t/request-for-assistance-with-m7e-hecto-rfid-reader-pin-setup-and-working-code/62882 "2025-01-28T18:55:42Z")
Dear Community, I have purchased both the M7e Hecto reader from SparkFun. Unfortunately, neither of these readers is working as expected. Despite following the examples provided, I have not been able to get either reade… --- ## [RTK Facet - IOS](https://community.sparkfun.com/t/rtk-facet-ios/43517)
**Author:** [@easy](https://community.sparkfun.com/u/easy)\ **Replies:** 20\ **Last updated:** [January 27, 2025, 11:25pm UTC](https://community.sparkfun.com/t/rtk-facet-ios/43517 "2025-01-27T23:25:05Z")
Hi, How can you connect The RTK Facet to an IOS like Iphone or Ipad THX and greetings, --- ## [Using Sparkfun RTK or Facet with Avenza or ESRI Field maps on iOS](https://community.sparkfun.com/t/using-sparkfun-rtk-or-facet-with-avenza-or-esri-field-maps-on-ios/46473)
**Author:** [@DPscmts](https://community.sparkfun.com/u/DPscmts)\ **Replies:** 2\ **Last updated:** [January 26, 2025, 3:01pm UTC](https://community.sparkfun.com/t/using-sparkfun-rtk-or-facet-with-avenza-or-esri-field-maps-on-ios/46473 "2025-01-26T15:01:33Z")
I was wondering if anyone had figured out how to use the Sparkfun GNSS devices with iOS with a mapping app besides SWMAPS. I’ve been using SWmaps and have been able to integrate it into my workflow but my crew is used to… --- ## [Portability Shield screen issues](https://community.sparkfun.com/t/portability-shield-screen-issues/62846)
**Author:** [@bdavidson](https://community.sparkfun.com/u/bdavidson)\ **Replies:** 11\ **Last updated:** [January 22, 2025, 7:19am UTC](https://community.sparkfun.com/t/portability-shield-screen-issues/62846 "2025-01-22T07:19:22Z")
Hi, I’m setting up the RTK postcard and its associated portability shield. I have the shield attached to the postcard with a set of male and female headers. Is there some magic incantation needed to make the screen on th… --- ## [Mechanical CAD (STEP) model for GPS-15136 or GPS-16481](https://community.sparkfun.com/t/mechanical-cad-step-model-for-gps-15136-or-gps-16481/62823)
**Author:** [@gmeiner](https://community.sparkfun.com/u/gmeiner)\ **Replies:** 2\ **Last updated:** [January 16, 2025, 7:58pm UTC](https://community.sparkfun.com/t/mechanical-cad-step-model-for-gps-15136-or-gps-16481/62823 "2025-01-16T19:58:19Z")
Hi there folks, Could anyone provide a STEP file for either of the below PCAs? I am not familiar with Eagle and do not have a license but could use a 3D model for integrating this into a design. GPS-16481 GPS-15136 Y… --- ## [Trouble with GNSS library callback routine](https://community.sparkfun.com/t/trouble-with-gnss-library-callback-routine/62311)
**Author:** [@Jeffrey\_Long](https://community.sparkfun.com/u/Jeffrey_Long)\ **Replies:** 7\ **Last updated:** [December 17, 2024, 3:11pm UTC](https://community.sparkfun.com/t/trouble-with-gnss-library-callback-routine/62311 "2024-12-17T15:11:27Z")
I am experimenting with a redboard connected to a NEO-M9N board via qwiic. I am running the callback example NAV\_PVT in the SparkFun GNNS v2 library. Just running it as is for the moment and I notice that it mostly works… --- ## [RTK PointPerfect on ZED-F9P - Large Latitude/Longitude Differences Despite High Precision?](https://community.sparkfun.com/t/rtk-pointperfect-on-zed-f9p-large-latitude-longitude-differences-despite-high-precision/62155)
**Author:** [@Bitnut011](https://community.sparkfun.com/u/Bitnut011)\ **Replies:** 8\ **Last updated:** [December 9, 2024, 4:57pm UTC](https://community.sparkfun.com/t/rtk-pointperfect-on-zed-f9p-large-latitude-longitude-differences-despite-high-precision/62155 "2024-12-09T16:57:14Z")
Hi everyone, Recently, I tested the RTK PointPerfect solution with the ZED-F9P module. I collected data once per second using the NAV-PVT message type and ran the u-blox module continuously for 24 hours. The antenna was… --- ## [SparkFun RTK Postcard](https://community.sparkfun.com/t/sparkfun-rtk-postcard/62072)
**Author:** [@A](https://community.sparkfun.com/u/A)\ **Replies:** 2\ **Last updated:** [December 5, 2024, 12:30am UTC](https://community.sparkfun.com/t/sparkfun-rtk-postcard/62072 "2024-12-05T00:30:23Z")
Saw this pop up on the New Products page: This one looks like a big winner! Thanks for getting an RTK base station down to this price point. --- ## [How to connect Mosaic-X5 breakout to internet to get RTK correction data from NTRIP servers?](https://community.sparkfun.com/t/how-to-connect-mosaic-x5-breakout-to-internet-to-get-rtk-correction-data-from-ntrip-servers/46997)
**Author:** [@johndiy](https://community.sparkfun.com/u/johndiy)\ **Replies:** 7\ **Last updated:** [November 26, 2024, 7:16am UTC](https://community.sparkfun.com/t/how-to-connect-mosaic-x5-breakout-to-internet-to-get-rtk-correction-data-from-ntrip-servers/46997 "2024-11-26T07:16:19Z")
Hello, SparkFun, Is there anyway to connect mosaic-x5 breakout (GPS-23088) to internet through a raspberry pi (connected to wifi)? I have been trying to figure this out for a week and there does not seem to be any docum… --- ## [RTK Reference Station Unresponsive](https://community.sparkfun.com/t/rtk-reference-station-unresponsive/61765)
**Author:** [@ricci](https://community.sparkfun.com/u/ricci)\ **Replies:** 10\ **Last updated:** [November 18, 2024, 11:39pm UTC](https://community.sparkfun.com/t/rtk-reference-station-unresponsive/61765 "2024-11-18T23:39:37Z")
I noticed my NTRIP casting was not working and found my RTK Reference Station to be seemingly dead. I verified the USB power supply was working properly, but was unable to get the status LED to light or anything to come… --- ## [XA1110 sleep / power saving mode](https://community.sparkfun.com/t/xa1110-sleep-power-saving-mode/38083)
**Author:** [@m7bacbooi](https://community.sparkfun.com/u/m7bacbooi)\ **Replies:** 7\ **Last updated:** [October 29, 2024, 8:58pm UTC](https://community.sparkfun.com/t/xa1110-sleep-power-saving-mode/38083 "2024-10-29T20:58:35Z")
Hi I’m playing around with the XA1110 GPs module and have fine connection. However I would like to set it into sleep / power saving mode, but it seems like the WAKE pin isn’t enough itself? From the datasheet I do not g… --- ## [RTK Facet real time position on Google maps](https://community.sparkfun.com/t/rtk-facet-real-time-position-on-google-maps/60950)
**Author:** [@navytech](https://community.sparkfun.com/u/navytech)\ **Replies:** 15\ **Last updated:** [October 7, 2024, 4:33am UTC](https://community.sparkfun.com/t/rtk-facet-real-time-position-on-google-maps/60950 "2024-10-07T04:33:43Z")
The Facet position is about 3ft off in Google Maps. I found a Monument in my area and it is 3 foot off. I am using RTK2go for correction but it is 29 miles away. Also tried Polaris correction and it is 39 miles away. I… [Previous page](https://community.sparkfun.com/c/global-positioning-system-gps/development-boards/117.md?page=1) [Next page](https://community.sparkfun.com/c/global-positioning-system-gps/development-boards/117.md?page=3)