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MicroMod GNSS Function Board - ZED-F9P Hookup Guide

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MicroMod GNSS Function Board - ZED-F9P Hookup Guide a learn.sparkfun.com tutorial

Available online at: http://sfe.io/t2419

Introduction

As some readers may guess by the assortment of SparkFun products featuring it, we love the ZED-F9P GNSS module from u-blox. The SparkFun MicroMod GNSS Function Board - ZED-F9P provides high precision GNSS capabilities for MicroMod projects using Main Board/Function Board assemblies. The ZED-F9P module from u-blox is capable of up to 10mm 3-dimensional accuracy though the module requires a clear view of the sky as well as correction data from an RTCM source to achieve this accuracy. The ZED-F9P can act as a base station as well so you can use it with a second Function Board (or another SparkFun ZED-F9P product) together to achieve millimeter positional accuracy.

SparkFun MicroMod GNSS Function Board - ZED-F9P

SparkFun MicroMod GNSS Function Board - ZED-F9P

GPS-19663
$274.95

Having the ZED-F9P on a MicroMod Function board allows for even more versatility with projects using the ZED-F9P allowing users to mix and match not only their preferred Processor but also to pair it with another Function Board to add even more versatility to a GNSS project.

This guide will go over the hardware present on this Function Board, how to assemble it into a MicroMod circuit as well as an Arduino example to start getting location data from the ZED-F9P.

Required Materials

You'll need the following materials along with the MicroMod GNSS Function Board - ZED-F9P to complete this tutorial and use the Function Board.

Main Board

All Function Boards require a Main Board and Processor to connect to each other. Depending on your application, you may need either a Single or Dual Main Board:

SparkFun MicroMod Main Board - Single

SparkFun MicroMod Main Board - Single

DEV-18575
$14.95
SparkFun MicroMod Main Board - Double

SparkFun MicroMod Main Board - Double

DEV-18576
$17.95

Processor Board

You'll need a Processor Board to act as a host controller for the Function Board:

SparkFun MicroMod Teensy Processor

SparkFun MicroMod Teensy Processor

DEV-16402
$21.50
4
SparkFun MicroMod SAMD51 Processor

SparkFun MicroMod SAMD51 Processor

DEV-16791
$18.95
1
SparkFun MicroMod ESP32 Processor

SparkFun MicroMod ESP32 Processor

WRL-16781
$16.95
1
SparkFun MicroMod Artemis Processor

SparkFun MicroMod Artemis Processor

DEV-16401
$14.95

Antenna

The GNSS Function Board also requires an antenna. We recommend using a GNSS multi-band antenna compatible with both L1 and L2 bands for full reception like the ones below:

GNSS Multi-Band Magnetic Mount Antenna - 5m (SMA)

GNSS Multi-Band Magnetic Mount Antenna - 5m (SMA)

GPS-15192
$72.95
1
GNSS  Multi-Band L1/L2 Helical Antenna (SMA) BT-560

GNSS Multi-Band L1/L2 Helical Antenna (SMA) BT-560

GPS-17383
$90.95
1

Antenna Accessories

The GNNS Function Board uses a u.Fl connector for the antenna connection so in order to use the antennas listed above, you will need an adapter cable like the ones below. You may also want a grounding plate to maximize your antenna's reception:

Interface Cable SMA to U.FL

Interface Cable SMA to U.FL

WRL-09145
$5.50
3
RP-SMA to U.FL Cable - 150mm

RP-SMA to U.FL Cable - 150mm

WRL-18569
$1.95
GPS Antenna Ground Plate

GPS Antenna Ground Plate

GPS-17519
$6.95
Interface Cable U.FL to SMA

Interface Cable U.FL to SMA

WRL-18154
$8.95

Suggested Reading

The MicroMod ecosystem is a unique way to allow users to customize their project to their needs. If you aren't familiar with the MicroMod system, click on the banner below for more information.

MicroMod Logo


Before getting started, be sure to check out our What is GPS RTK? tutorial and if you're not familiary with u-center, have a look at our Getting Started with U-Center as well as these related tutorials:

I2C

An introduction to I2C, one of the main embedded communications protocols in use today.

Serial Basic Hookup Guide

Get connected quickly with this Serial to USB adapter.

What is GPS RTK?

Learn about the latest generation of GPS and GNSS receivers to get 14mm positional accuracy!

Getting Started with U-Center for u-blox

Learn the tips and tricks to use the u-blox software tool to configure your GPS receiver.

This tutorial is based around the guide for the SparkFun GPS-RTK2 Board - ZED-F9P so you may want to check out these tutorials for more information on GPS-RTK:

GPS-RTK Hookup Guide

September 13, 2018

Find out where you are! Use this easy hook-up guide to get up and running with the SparkFun high precision GPS-RTK NEO-M8P-2 breakout board.

GPS-RTK2 Hookup Guide

January 14, 2019

Get precision down to the diameter of a dime with the new ZED-F9P from u-blox.

Hardware Overview

Let's take a closer look at the ZED-F9P module and other hardware on this Function Board.

ZED-F9P GNSS Module

The ZED-F9P is a high-precision GNSS module from u-blox capable of up to millimeter X, Y & Z positional accuracy.

Image highlighting the ZED-F9P module.

The ZED-F9P with a full RTK lock along with RTCM data streaming to the module can achieve 10mm 3D positional accuracy. Depending on the constellation the module achieves a lock in ~25 seconds from a cold start and 2 seconds from both a hot start and aided start. For a complete overview of the module, refer to the ZED-F9P datasheet.

One of the key differentiators between the ZED-F9P and almost all other low-cost RTK solutions is the ZED-F9P is capable of receiving both L1 and L2 bands.

L1 and L2 GNSS reception on the ZED-F9P

The module can act as either a rover to receive GNNS location data and RTCM correction data or a base station to send RTCM correction data to another device. For complete information on how to configure the ZED-F9P as a base station or rover, refer to the u-blox Integration Manual or check out this tutorial.

Communication Interfaces

This Function Board routes the ZED-F9P's USB interface to a USB-C connector on the top of the board. The SPI, I2C and primary serial interfaces are routed to the MicroMod M.2 connector through an isolation circuit.

Image highlighting the USB-C and MicroMod connections.

The board configures the ZED-F9P to communicate via I2C and Serial by default. Adjusting the DSEL solder jumper switches the communication interface to SPI.

The USB-C connector allows direct communication to the ZED-F9P UART interface but does not provide power to the module or other parts of the MicroMod assembly by default. To use this connector for power, adjust the USB PWR EN jumper. Read on to the Solder Jumpers section for more information.

Antenna

The board routes the ZED-F9P antenna connection to a u.Fl connector for an external antenna connection. Most of the recommended antennas use a SMA-type connector so an adapter like this is most likely needed.

Image highlighting the u.FL connector

The Function Board also includes a RF/antenna supervision circuit to monitor and control the active antenna connection. The supervision circuit protects the ZED-F9P from a short circuit on the antenna connection and monitors the antenna connection to detect a connected antenna or open circuit. By default the Function Board disables this circuit through the SUP solder jumper. Read on to the Solder Jumpers section for more information on using this jumper and refer to section 4.3.4 of the ZED-F9P Integration Manual for more information on this circuit and how to poll the status using UBX messages.

Backup Battery

The backup battery on the board has a 1.5mAh capacity to maintain settings and other low-power functionality to the ZED-F9P when the module is not fully powered.

Image highlighting the backup battery circuit.

PTH Connections

Along with the secondary serial bus, the Function Board routes several other ZED-F9P pins to plated through-hole (PTH) connecitons.

Image highlighting the PTH connections.

The list below outlines the labels and functionality of the PTH connections on the Function Board:

  • PPS - The board translates the Pulse-Per-Second (PPS) output to a differential output routed to a pair of PTHs along with matching ground PTHs.
  • RX2/TX2 - The ZED-F9P's secondary UART (RX2/TX2) along with a ground PTH.
  • Reset - ZED-F9P reset pin.
  • EXTINT - ZED-F9P external interrupt pin.
  • SB - ZED-F9P SafeBoot pin.
  • GND - Several Ground PTHs if needed.

LEDs

The GNSS Function Board - ZED-F9P has three LEDs labeled: PWR, PPS and RTK.

Image highlighting the LEDs.
  • PWR - Indicates when the ZED-F9P is powered.
  • PPS - Tied to the Pulse Per Second pin and acts as a visual indicator to the ZED-F9P pulse per second signal.
  • RTK - Indicates the status of the RTK lock.

Solder Jumpers

If you have never worked with solder jumpers and PCB traces before or would like a quick refresher, check out our How to Work with Solder Jumpers and PCB Traces tutorial for detailed instructions and tips.

This board has nine solder jumpers. The table below outlines each jumper's label, default state, function and notes regarding their use:

Image highlighting the solder jumpers.
Having trouble seeing the details in the photo? Click on it for a larger view.
LabelDefault StateFunctionNotes
USBPWRENOPENEnables USB power to ZED-F9P.Close to use the USB-C connector on the Function Board to power the ZED-F9P.
SHLDCLOSEDUSB-C shield control.Open to disconnect the USB-C shield pin to the ground plane.
SUPDisableAntenna supervisor circuit control.Disables the antenna supervisor circuit by default. Switch to EN side to enable the circuit.
DSELZED-F9P interface selection.I2C/SerialThree pad jumper controls which communication interface the ZED-F9P uses. Can be set to I2C/Serial (Default) or SPI.
I2CCLOSEDI2C pull up resistorsThree-way jumper pulling the SDA and SCL lines to 3.3V through a pair of 2.2kΩ resistors. Sever both traces to disable the pull up resistors.
WPEEPROM Write Protection OPENClose to clarification needed write protection on the EEPROM IC.
PWRPower LED control.CLOSEDEnables the ZED-F9P power indicator LED. Open to disable the LED.
PPSPPS LED control.CLOSEDEnables the ZED-F9P pulse per second LED. Open to disable the LED.
RTKRTK LED control.CLOSEDEnables the ZED-F9P RTK lock indicator LED. Open to disable the LED.

MicroMod Pinout

This Function Board uses the following pins on a connected Processor Board:

  • 3.3V & VCC
  • Power enable
  • SPI - ZED-F9P SPI
  • I2C - ZED-F9P I2C and EEPROM
  • UART RX1/TX1 (Slot 0) / UART RX2/TX2 (Slot 1) - ZED-F9P UART1
  • CS0 (Slot 0) / CS1 (Slot 1) - ZED-F9P Chip Select
  • D0 (Slot 0) / D1 (Slot 1) - ZED-F9P TX Ready
  • PWM0 (Slot 0) / PWM1 (Slot 1) - ZED-F9P Pulse-Per-Second
  • G0 (Slot 0) / G5 (Slot 1) - ZED-F9P Reset
  • G1 (Slot 0) / G6 (Slot 1) - External Interrupt
  • G2 (Slot 0) / G7 (Slot 1) - RTK Status
  • G3 (Slot 0) / G8 (Slot 1) - Geofence Status
Note: As covered previously, the ZED-F9P uses the same pins for UART/I2C (Default) and SPI depending on the state of the interface select (D_SEL) pin. The Function Board routes these interfaces to the labeled pins on the MicroMod M.2 connector through separate quad bilateral switches that are enabled/disabled depending on the state of the D_SEL pin controlled by the D_SEL solder jumper.

For the complete MicroMod Pinout and pins used by this function board, take a look at the tables below:

AUDIOUARTGPIO/BUSI2CSDIOSPI0Dedicated
FunctionBottom
Pin
   Top   
Pin
Function
(Not Connected)75GND
3.3V7473G5 / BUS5
RTC_3V_BATT7271G6 / BUS6
SPI_CS1#SDIO_DATA3 (I/O)7069G7 / BUS7
SDIO_DATA2 (I/O)6867G8
SDIO_DATA1 (I/O)6665G9ADC_D- CAM_HSYNC
SPI_CIPO1SDIO_DATA0 (I/O)6463G10ADC_D+CAM_VSYNC
SPI COPI1SDIO_CMD (I/O)6261SPI_CIPO (I)
SPI SCK1SDIO_SCK (O)6059SPI_COPI (O)LED_DAT
AUD_MCLK (O)5857SPI_SCK (O)LED_CLK
CAM_MCLKPCM_OUTI2S_OUTAUD_OUT5655SPI_CS#
CAM_PCLKPCM_INI2S_INAUD_IN5453I2C_SCL1 (I/O)
PDM_DATAPCM_SYNCI2S_WSAUD_LRCLK5251I2C_SDA1 (I/O)
PDM_CLKPCM_CLKI2S_SCKAUD_BCLK5049BATT_VIN / 3 (I - ADC) (0 to 3.3V)
G4 / BUS44847PWM1
G3 / BUS34645GND
G2 / BUS24443CAN_TX
G1 / BUS14241CAN_RX
G0 / BUS04039GND
A13837USBHOST_D-
GND3635USBHOST_D+
A03433GND
PWM03231Module Key
Module Key3029Module Key
Module Key2827Module Key
Module Key2625Module Key
Module Key2423SWDIO
UART_TX2 (O)2221SWDCK
UART_RX2 (I)2019UART_RX1 (I)
CAM_TRIGD11817UART_TX1 (0)
I2C_INT#1615UART_CTS1 (I)
I2C_SCL (I/0)1413UART_RTS1 (O)
I2C_SDA (I/0)1211BOOT (I - Open Drain)
D0109USB_VIN
SWOG1187GND
RESET# (I - Open Drain)65USB_D-
3.3V_EN43USB_D+
3.3V21GND
DescriptionFunctionBottom
Pin
   Top   
Pin
FunctionDescription
(Not Connected)75GND
-74733.3VPower Supply: 3.3-6V
-7271Power ENPower Enable
-7069-
-6665-
-6463-
-6261-
-6059GEO_STATZED-F9P Geofence Status Signal
-5857RTK_STATZED-F9P RTK Lock Status Signal
-5655EXTINTZED-F9P External Interrupt
-5453RESETZED-F9P Reset
-5251PPSZED-F9P Pulse-Per-Second Signal
-5049CSZED-F9P Chip Select
-4847TX_READYZED-F9P UART TX Ready Signal
-4645GND
-4443-
-4241-
Write protection pin for the EEPROM. Pull low to enable.EEPROM_WP4039GND
-3837-
EEPROM I2C address configuration.EEPROM_A03635-
EEPROM I2C address configuration.EEPROM_A13433GND
EEPROM I2C address configuration.EEPROM_A23231Module Key
Module Key3029Module Key
Module Key2827Module Key
Module Key2625Module Key
Module Key2423-
-2221I2C_SCLI2C - Clock Signal
-2019I2C_SDAI2C - Data Signal
-1817-
-1615RXZED RX
-1413TXZED TX
-1211-
-109-
-87POCISPI Peripheral Output/Controller Input.
-65PICOSPI Peripheral Input/Controller Output.
-43SCKSPI Clock Signal
-21GND
Signal GroupSignalI/ODescriptionVoltage
Power3.3VI3.3V Source3.3V
GNDReturn current path0V
USB_VINIUSB VIN compliant to USB 2.0 specification. Connect to pins on processor board that require 5V for USB functionality4.8-5.2V
RTC_3V_BATTI3V provided by external coin cell or mini battery. Max draw=100μA. Connect to pins maintaining an RTC during power loss. Can be left NC.3V
3.3V_ENOControls the carrier board's main voltage regulator. Voltage above 1V will enable 3.3V power path.3.3V
BATT_VIN/3ICarrier board raw voltage over 3. 1/3 resistor divider is implemented on carrier board. Amplify the analog signal as needed for full 0-3.3V range3.3V
ResetResetIInput to processor. Open drain with pullup on processor board. Pulling low resets processor.3.3V
BootIInput to processor. Open drain with pullup on processor board. Pulling low puts processor into special boot mode. Can be left NC.3.3V
USBUSB_D±I/OUSB Data ±. Differential serial data interface compliant to USB 2.0 specification. If UART is required for programming, USB± must be routed to a USB-to-serial conversion IC on the processor board.
USB HostUSBHOST_D±I/OFor processors that support USB Host Mode. USB Data±. Differential serial data interface compliant to USB 2.0 specification. Can be left NC.
CANCAN_RXICAN Bus receive data.3.3V
CAN_TXO CAN Bus transmit data.3.3V
UARTUART_RX1IUART receive data.3.3V
UART_TX1OUART transmit data.3.3V
UART_RTS1OUART ready to send.3.3V
UART_CTS1IUART clear to send.3.3V
UART_RX2I2nd UART receive data.3.3V
UART_TX2O2nd UART transmit data.3.3V
I2CI2C_SCLI/OI2C clock. Open drain with pullup on carrier board.3.3V
I2C_SDAI/OI2C data. Open drain with pullup on carrier board3.3V
I2C_INT#IInterrupt notification from carrier board to processor. Open drain with pullup on carrier board. Active LOW3.3V
I2C_SCL1I/O2nd I2C clock. Open drain with pullup on carrier board.3.3V
I2C_SDA1I/O2nd I2C data. Open drain with pullup on carrier board.3.3V
SPISPI_PICOOSPI Peripheral Input/Controller Output.3.3V
SPI_POCIISPI Peripheral Output/Controller Input.3.3V
SPI_SCKOSPI Clock.3.3V
SPI_CS#OSPI Chip Select. Active LOW. Can be routed to GPIO if hardware CS is unused.3.3V
SPI/SDIOSPI_SCK1/SDIO_CLKO2nd SPI Clock. Secondary use is SDIO Clock.3.3V
SPI_PICO1/SDIO_CMDI/O2nd SPI Peripheral Input/Controller Output. Secondary use is SDIO command interface.3.3V
SPI_POCI1/SDIO_DATA0I/O2nd SPI Controller Output/Peripheral Input. Secondary use is SDIO data exchange bit 0.3.3V
SDIO_DATA1I/OSDIO data exchange bit 1.3.3V
SDIO_DATA2I/OSDIO data exchange bit 2.3.3V
SPI_CS1/SDIO_DATA3I/O2nd SPI Chip Select. Secondary use is SDIO data exchange bit 3.3.3V
AudioAUD_MCLKOAudio master clock.3.3V
AUD_OUT/PCM_OUT/I2S_OUT/CAM_MCLKOAudio data output. PCM synchronous data output. I2S serial data out. Camera master clock.3.3V
AUD_IN/PCM_IN/I2S_IN/CAM_PCLKIAudio data input. PCM syncrhonous data input. I2S serial data in. Camera periphperal clock.3.3V
AUD_LRCLK/PCM_SYNC/I2S_WS/PDM_DATAI/OAudio left/right clock. PCM syncrhonous data SYNC. I2S word select. PDM data.3.3V
AUD_BCLK/PCM_CLK/I2S_CLK/PDM_CLKOAudio bit clock. PCM clock. I2S continuous serial clock. PDM clock.3.3V
SWDSWDIOI/OSerial Wire Debug I/O. Connect if processor board supports SWD. Can be left NC.3.3V
SWDCKISerial Wire Debug clock. Connect if processor board supports SWD. Can be left NC.3.3V
ADCA0IAnalog to digital converter 0. Amplify the analog signal as needed to enable full 0-3.3V range.3.3V
A1IAnalog to digital converter 1. Amplify the analog signal as needed to enable full 0-3.3V range.3.3V
PWMPWM0OPulse width modulated output 0.3.3V
PWM1OPulse width modulated output 1.3.3V
DigitalD0I/O General digital input/output pin.3.3V
D1/CAM_TRIGI/OGeneral digital input/output pin. Camera trigger.3.3V
General/BusG0/BUS0I/OGeneral purpose pins. Any unused processor pins should be assigned to Gx with ADC + PWM capable pins given priority (0, 1, 2, etc.) positions. The intent is to guarantee PWM, ADC and Digital Pin functionality on respective ADC/PWM/Digital pins. Gx pins do not guarantee ADC/PWM function. Alternative use is pins can support a fast read/write 8-bit or 4-bit wide bus.3.3V
G1/BUS1I/O3.3V
G2/BUS2I/O3.3V
G3/BUS3I/O3.3V
G4/BUS4I/O3.3V
G5/BUS5I/O3.3V
G6/BUS6I/O3.3V
G7/BUS7I/O3.3V
G8I/OGeneral purpose pin3.3V
G9/ADC_D-/CAM_HSYNCI/ODifferential ADC input if available. Camera horizontal sync.3.3V
G10/ADC_D+/CAM_VSYNCI/ODifferential ADC input if available. Camera vertical sync.3.3V
G11/SWOI/OGeneral purpose pin. Serial Wire Output3.3V

Board Dimensions

The board matches the MicroMod Function Board design specifications and measures 2.56" x 1.48" (65.02mm x 37.69mm) and the USB-C connector protrudes roughly 0.067" (1.70mm) from the edge of the board.

Image of board dimensions

Hardware Assembly

If you're not familiar with assembling boards using the MicroMod connection system, head over to the MicroMod Main Board Hookup Guide for information on inserting and securing your MicroMod Processor and Function Boards to the Main Board:

MicroMod Main Board Hookup Guide

November 11, 2021

The MicroMod Main Board - Single and Double are specialized carrier boards that allow you to interface a Processor Board with a Function Board(s). The modular system allows you to add an additional feature(s) to a Processor Board with the help of a Function Board(s). In this tutorial, we will focus on the basic functionality of the Main Board - Single and Main Board - Double.

Antenna Connection

The antenna connection on this Function Board uses a u.Fl connector so an adapter like this is most likely needed. For tips on how to properly use a u.Fl connector, this tutorial can help.

Completed Assembly

With the Function and Processor Boards installed on a Main Board and the antenna and USB-C cables plugged in, your completed MicroMod assembly should look similar to the photo below:

Image of completed MicroMod assembly with GNSS antenna connected.

With the MicroMod assembly completed, we can move on to setting up the software and start getting location data from the ZED-F9P.

Software Installation

Note: This example assumes you are using the latest version of the Arduino IDE on your desktop. If this is your first time using Arduino, please review the following tutorials.

SparkFun u-blox Arduino Library

Note: This example assumes you are using the latest version of the Arduino IDE on your desktop. If this is your first time using Arduino, please review our tutorial on installing the Arduino IDE. If you have not previously installed an Arduino library, please check out our installation guide.

The SparkFun u-blox Arduino library enables the reading of all positional datums as well as sending binary UBX configuration commands over I2C. This is helpful for configuring advanced modules like the ZED-F9P but also the NEO-M8P-2, SAM-M8Q and any other u-blox module that use the u-blox binary protocol.

The SparkFun u-blox Arduino library can be downloaded with the Arduino library manager by searching 'SparkFun u-blox GNSS' or you can grab the zip here from the GitHub repository:

This SparkFun u-blox library really focuses on I2C because it's faster than serial and supports daisy-chaining. The library also uses the UBX protocol because it requires far less overhead than NMEA parsing and does not have the precision limitations that NMEA has.

In the next section we'll look at the first example included with the library to verify everything is working properly with the GNNS Function Board - ZED-F9P.

u-center Installation

For those who prefer to communicate directly with the ZED-F9P through the USB-C connector on the Function Board, head over to this tutorial to get started with u-center from u-blox:

Getting Started with U-Center for u-blox

September 13, 2018

Learn the tips and tricks to use the u-blox software tool to configure your GPS receiver.

Pin Connection Table

The table below helps show which pins the Function Board connects to depending on the slot it is connected to on a Main Board (Note: The Single Main Board connection is Slot 0):

AUDIOUARTGPIO/BUSI2CSDIOSPI0Dedicated
Function Board
Pin Name
Main Board's
Processor Pin
Slot 0Slot 1
VCC-
3.3V-
GND-
ZED_RXTX1TX2
ZED_TXRX1RX2
TX READYD0D1
CSCS0CS1
PPSPWM0PWM1
RSTG0G5
INTG1G6
RTKG2G7
GEOG3G8

Arduino Example

Example 1: Positional Accuracy

The first example in the SparkFun u-blox GNSS Arduino Library provides a quick test for position and accuracy. Navigate to the example by going to File>Examples>SparkFun u-blox GNSS Arduino Library>ZED-F9P>Example1_GetPositionAccuracy.

Select your Board (in this case the SparkFun ESP32 MicroMod) and associated COM port. Upload the code and open the Arduino Serial Monitor with the baud set to 115200. Make sure the antenna has a clear view of the sky and give the ZED-F9P some time to get a satellite lock. Once the module gets a satellite lock the coordinates and accuracy should start to print out in the serial monitor window.

More Examples!

Now that you got it up and running, check out the other examples located in the ZED-F9P folder!

In order to get the most out of the ZED-F9P, you will need an RTCM correction source. Depending on your choice of Processor or other items in your setup, you may need a second ZED-F9P for a correction source. The following project tutorials guide you through setting up the ZED-F9P as a reference station or rover.

How to Build a DIY GNSS Reference Station

October 15, 2020

Learn how to affix a GNSS antenna, use PPP to get its ECEF coordinates and then broadcast your own RTCM data over the internet and cellular using NTRIP to increase rover reception to 10km!

Setting up a Rover Base RTK System

October 14, 2020

Getting GNSS RTCM correction data from a base to a rover is easy with a serial telemetry radio! We'll show you how to get your high precision RTK GNSS system setup and running.

Troubleshooting

u.Fl Tips

Unplugging the u.Fl adapter from the connector on the Function Board is tricky and improper removal can damage the connector or the board. For tips on using the u.Fl connector, check out this tutorial:

Three Quick Tips About Using U.FL

December 28, 2018

Quick tips regarding how to connect, protect, and disconnect U.FL connectors.

Position Lock Tips

Depending on your antenna choice and setup, you may experience issues getting your ZED-F9P to achieve a 3D lock. If you run into issues getting a lock, make sure the antenna has a clear view of the sky away from large objects such as buildings that may block the antenna view.

General Troubleshooting

Resources and Going Further

That's all for this tutorial. By now you should be able to start recording positional data with your completed MicroMod Main Board assembly using the GNSS Function Board - ZED-F9P. For more information, check out the following resources:

MicroMod GNSS Function Board Documentation:

ZED-F9P Documentation:

MicroMod Documentation:

Looking for inspiration for a GNSS-RTK project? The following tutorials can help you get started:

Building an Autonomous Vehicle: The Batmobile

Documenting a six-month project to race autonomous Power Wheels at the SparkFun Autonomous Vehicle Competition (AVC) in 2016.

What is GPS RTK?

Learn about the latest generation of GPS and GNSS receivers to get 14mm positional accuracy!

Setting up a Rover Base RTK System

Getting GNSS RTCM correction data from a base to a rover is easy with a serial telemetry radio! We'll show you how to get your high precision RTK GNSS system setup and running.

How to Build a DIY GNSS Reference Station

Learn how to affix a GNSS antenna, use PPP to get its ECEF coordinates and then broadcast your own RTCM data over the internet and cellular using NTRIP to increase rover reception to 10km!

learn.sparkfun.com | CC BY-SA 3.0 | SparkFun Electronics | Niwot, Colorado


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