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Initial EVK docs updates
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PaulZC authored Jul 10, 2024
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16 changes: 11 additions & 5 deletions README.md
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Expand Up @@ -5,21 +5,27 @@ The line of RTK Everywhere products offered by SparkFun all run identical firmwa

<table class="table table-hover table-striped table-bordered">
<tr align="center">
<td><a href="https://www.sparkfun.com/products/24672"><img src="docs/img/SparkFun_RTK_Torch.png"></a></td>
<td><a href="https://www.sparkfun.com/products/25662"><img src="docs/img/SparkFun_RTK_Torch.png"></a></td>
<td><a href="https://www.sparkfun.com/products/24342"><img src="docs/img/SparkFun_RTK_EVK.png"></a></td>
</tr>
<tr align="center">
<td><a href="https://www.sparkfun.com/products/24672">SparkFun RTK Torch (GPS-24672)</a></td>
<td><a href="https://www.sparkfun.com/products/25662">SparkFun RTK Torch (GPS-25662)</a></td>
<td><a href="https://www.sparkfun.com/products/24342">SparkFun RTK EVK (GPS-24342)</a></td>
</tr>
<tr align="center">
<td><a href="https://learn.sparkfun.com/tutorials/sparkfun-rtk-facet-l-band-hookup-guide">Hookup Guide</a></td>
<td><a href="https://docs.sparkfun.com/SparkFun_RTK_Torch/">Hookup Guide</a></td>
<td><a href="https://docs.sparkfun.com/SparkFun_RTK_EVK/">Hookup Guide</a></td>
</tr>
</table>

The [SparkFun RTK Torch](https://www.sparkfun.com/products/24672) is a centimeter-level GNSS receiver. With RTK enabled, these devices can output your location with 8mm horizontal and vertical [*accuracy*](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/accuracy_verification/) at up to 20Hz!
The [SparkFun RTK Torch](https://www.sparkfun.com/products/25662) is a centimeter-level GNSS receiver. With RTK enabled, these devices can output your location with 8mm horizontal and vertical [*accuracy*](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/accuracy_verification/) at up to 20Hz. It supports Galileo E6 HAS and has built-in tilt compensation too!

The [SparkFun RTK EVK](https://www.sparkfun.com/products/24342) is the perfect development platform for your fixed or mobile high-precision positioning and navigation needs. We called it the EVK (Evaluation Kit) as it truly covers all the options: L1 + L2 RTK GNSS, with L-Band correction built-in. Regarding connectivity, the SparkFun RTK EVK has it all: WiFi / Bluetooth®, Ethernet and LTE cellular!

This repo houses the [RTK Product Manual](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware) and the firmware that runs on the SparkFun RTK product line including:

* [SparkFun RTK Torch](https://www.sparkfun.com/products/24672)
* [SparkFun RTK Torch](https://www.sparkfun.com/products/25662)
* [SparkFun RTK EVK](https://www.sparkfun.com/products/24342)

For compiled binaries of the firmware, please see [SparkFun RTK Everywhere Firmware Binaries](https://github.com/sparkfun/SparkFun_RTK_Everywhere_Firmware_Binaries).

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2 changes: 1 addition & 1 deletion docs/accuracy_verification.md
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# Accuracy Verification

Torch: ![Feature Supported](img/Icons/GreenDot.png)
Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

![Facet in the field](img/VerifyAccuracy/SparkFun%20Verify%20RTK%20-%2016%20Facet%20in%20the%20Field.jpg)

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2 changes: 1 addition & 1 deletion docs/configure_with_bluetooth.md
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# Configure with Bluetooth

Torch: ![Feature Supported](img/Icons/GreenDot.png)
Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

![Configuration menu open over Bluetooth](img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Config%20Menu.png)

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2 changes: 1 addition & 1 deletion docs/configure_with_serial.md
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# Configure with Serial

Torch: ![Feature Supported](img/Icons/GreenDot.png)
Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

**Note:** Any serial menu that is shown below can also be accessed over Bluetooth. This makes any configuration of a device much easier in the field. Please see [Configure With Bluetooth](configure_with_bluetooth.md) for more information.

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2 changes: 1 addition & 1 deletion docs/configure_with_settings_file.md
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# Configure with Settings File

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![SparkFun RTK Facet Settings File](img/SparkFun_RTK_Express_-_Settings_File.jpg)

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2 changes: 1 addition & 1 deletion docs/configure_with_ucenter.md
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# Configure with u-center

Torch: ![Feature Not Supported](img/Icons/RedDot.png)
Torch: ![Feature Not Supported](img/Icons/RedDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

On devices that have a u-blox GNSS receiver, the ZED-F9P GNSS module can be configured independently using the u-center software from u-blox by connecting a USB cable to the *Config u-blox* USB connector. Settings can be saved to the module between power cycles. For more information please see SparkFun’s [Getting Started with u-center by u-blox](https://learn.sparkfun.com/tutorials/getting-started-with-u-center-for-u-blox/all).

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2 changes: 1 addition & 1 deletion docs/configure_with_wifi.md
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# Configure with WiFi

Torch: ![Feature Supported](img/Icons/GreenDot.png)
Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

![SparkFun RTK WiFi Configuration Interface](<img/WiFi Config/SparkFun RTK WiFi Config - Main Interface.png>)

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2 changes: 1 addition & 1 deletion docs/connecting_bluetooth.md
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# Connecting Bluetooth

Torch: ![Feature Supported](img/Icons/GreenDot.png)
Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

SparkFun RTK devices transmit full NMEA sentences over Bluetooth serial port profile (SPP) at 2Hz and 115200bps. This means that nearly any GIS application that can receive NMEA data over a serial port (almost all do) can be used with SparkFun RTK devices. As long as your end system can open a serial port over Bluetooth (also known as SPP) your system can retrieve industry-standard NMEA positional data. The following steps show how to connect an external tablet, or cell phone to the RTK device so that any serial port-based GIS application can be used.

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2 changes: 1 addition & 1 deletion docs/correction_sources.md
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# Correction Sources

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To get millimeter accuracy we need to provide the RTK unit with correction values. Corrections, often called RTCM, help the RTK unit refine its position calculations. RTCM (Radio Technical Commission for Maritime Services) can be obtained from a variety of sources but they fall into three buckets: Commercial, Public, and Civilian Reference Stations.

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25 changes: 18 additions & 7 deletions docs/correction_transport.md
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Expand Up @@ -6,7 +6,7 @@ RTK calculations require RTCM data to be delivered approximately once per second

## WiFi

Torch: ![Feature Supported](img/Icons/GreenDot.png)
Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

![NTRIP Server setup](<img/WiFi Config/RTK_Surveyor_-_WiFi_Config_-_Base_Config2.jpg>)

Expand All @@ -20,9 +20,9 @@ WiFi broadcasting is the most common transport method of getting RTCM correction

Similarly, any SparkFun RTK device can be set up as an [NTRIP Client](menu_gnss.md#ntrip-client). The RTK device will connect to the local WiFi and begin downloading the RTCM data from the given NTRIP Caster and RTK Fix will be achieved. This is useful only if the Rover remains in RF range of a WiFi access point. Because of the limited range, we recommend using a cell phone's hotspot feature rather than a stationary WiFi access point for NTRIP Clients.

## Cellular
## Cellular - Via Cellphone

Torch: ![Feature Supported](img/Icons/GreenDot.png)
Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

![SW Maps NTRIP Client](img/SWMaps/SW_Maps_-_NTRIP_Client.jpg)

Expand All @@ -32,21 +32,30 @@ Shown above are SW Map's NTRIP Client Settings. Nearly all GIS applications have

Cellular can even be used in Base mode. We have seen some very inventive users use an old cell phone as a WiFi access point. The base unit is configured as an NTRIP Server with the cellphone's WiFi AP credentials. The base performs a survey-in, connects to the WiFi, and the RTCM data is pushed over WiFi, over cellular, to an NTRIP Caster.

## Cellular - Built-In

Torch: ![Feature Supported](img/Icons/RedDot.png) / EVK: ![Feature Supported](img/Icons/RedDot.png)

The RTK EVK has built-in cellular via a u-blox LARA-R6001D. However, the RTK Everywhere firmware does not yet support cellular. Adding it is on our roadmap. Stay tuned for updates! Meanwhile, we do have a stand-alone EVK code example which will connect to PointPerfect localized distribution via cellular:

* [EVK example 8_5_PointPerfect_MQTT](https://github.com/sparkfun/SparkFun_RTK_EVK/tree/main/Example_Sketches/8_5_PointPerfect_MQTT)
* [EVK example 8_6_PointPerfect_MQTT_WiFi_ETH_Cellular](https://github.com/sparkfun/SparkFun_RTK_EVK/tree/main/Example_Sketches/8_6_PointPerfect_MQTT_WiFi_ETH_Cellular)

## L-Band

Torch: ![Feature Not Supported](img/Icons/RedDot.png)
Torch: ![Feature Not Supported](img/Icons/RedDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

What if you are in the field, far away from WiFi, cellular, radio, or any other data connection? Look to the sky!

A variety of companies provide GNSS RTK corrections broadcast from satellites over a spectrum called L-Band. [L-Band](https://en.wikipedia.org/wiki/L_band) is any frequency from 1 to 2 GHz. These frequencies have the ability to penetrate clouds, fog, and other natural weather phenomena making them particularly useful for location applications.

These corrections are not as accurate as a fixed base station, and the corrections can require a monthly subscription fee, but you cannot beat the ease of use!

L-Band reception requires specialized RF receivers capable of demodulating the satellite transmissions. Currently, the [RTK Facet L-Band](https://www.sparkfun.com/products/20000) is the only product that supports L-Band correction reception.
L-Band reception requires specialized RF receivers capable of demodulating the satellite transmissions. The RTK EVK has a built-in NEO-D9S corrections receiver. The RTK Everywhere firmware supports this and will tune the NEO-D9S to the correct frequency if you are in the US or EU. The PointPerfect L-Band corrections are encrypted and require a subscription and valid keys in order to work. The EVK comes with a one month free subscription to PointPerfect L-Band + IP, providing built-in support for L-Band corrections and IP corrections via Ethernet or WiFi.

## Serial Radios

Torch: ![Feature Not Supported](img/Icons/RedDot.png)
Torch: ![Feature Not Supported](img/Icons/RedDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

![Two serial radios](img/Corrections/19032-SiK_Telemetry_Radio_V3_-_915MHz__100mW-01.jpg)

Expand All @@ -58,6 +67,8 @@ On SparkFun RTK products that have an external radio port, a [4-pin to 6-pin cab

![Radio attached to RTK device](img/Corrections/SparkFun_RTK_Surveyor_-_Radio.jpg)

The RTK EVK has screw cage terminals providing access to the ZED-F9P UART2 TX2 and RX2 pins. 3.3V power is provided too, but not 5V. For 5V radios, you may need an additional power source.

These radios attach nicely to the back or bottom of an RTK device.

The benefit of a serial telemetry radio link is that you do not need to configure anything; simply plug two radios onto two RTK devices and turn them on.
Expand All @@ -66,7 +77,7 @@ The downside to serial telemetry radios is that they generally have a much short

## Ethernet

Torch: ![Feature Not Supported](img/Icons/RedDot.png)
Torch: ![Feature Not Supported](img/Icons/RedDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

Ethernet-equipped RTK devices send and receive correction data via Ethernet.

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17 changes: 7 additions & 10 deletions docs/displays.md
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# Displays

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Torch: ![Feature Not Supported](img/Icons/RedDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

A variety of RTK devices utilize a 0.96" or 1.3" high-contrast OLED display. While small, the display packs various situational data that can be helpful in the field. This section describes each possible display state.

Expand Down Expand Up @@ -80,7 +80,7 @@ Note: During NTRIP transmission WiFi is turned on and Bluetooth is turned off. Y

## L-Band

Torch: ![Feature Not Supported](img/Icons/RedDot.png)
Torch: ![Feature Not Supported](img/Icons/RedDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

L-Band decryption keys are valid for a maximum of 56 days. During that time, the RTK Facet L-Band can operate normally without the need for WiFi access. However, when the keys are set to expire in 28 days or less, the RTK Facet L-Band will attempt to log in to the 'Home' WiFi at each power on. If WiFi is not available, it will continue normal operation.

Expand All @@ -98,18 +98,15 @@ Upon successful reception and decryption of L-Band corrections, the satellite di

## Antenna Detection

Torch: ![Feature Not Supported](img/Icons/RedDot.png)
Torch: ![Feature Not Supported](img/Icons/RedDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

On devices that support it, open circuit and short circuit detection is available on the GNSS antenna connection.

![Reference Station indicating antenna open circuit](img/Displays/Antenna_Open.png)
![RTK EVK indicating antenna open circuit](img/SparkFun-RTK-EVK-OLED_Antenna_Open_Highlighted.jpg)

*Reference Station with the GNSS antenna disconnected (open circuit)*
*RTK EVK with the GNSS antenna disconnected (open circuit)*

![Reference Station indicating antenna short circuit](img/Displays/Antenna_Short.png)
![RTK EVK indicating antenna short circuit](img/SparkFun-RTK-EVK-OLED_Antenna_Short_Highlighted.jpg)

*Reference Station with a GNSS antenna cable fault (short circuit)*
*RTK EVK with a GNSS antenna cable fault (short circuit)*

When and ethernet-equipped RTK device is in Network Time Protocol (NTP) mode, the display also shows a clock symbol - as shown above. The value next to the clock symbol is the Time Accuracy Estimate (tAcc) from the UBX-NAV-PVT message.

Note: tAcc is the time accuracy estimate for the navigation position solution. The timing accuracy of the TP pulse is significantly better than this. We show the tAcc as we believe it is more meaningful than the TIM-TP time pulse quantization error (qErr) - which is generally zero.
8 changes: 4 additions & 4 deletions docs/embeddedsystem_connection.md
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Expand Up @@ -4,13 +4,13 @@ Many applications using the RTK products will use a 3rd party GIS application or

## USB

Torch: ![Feature Supported](img/Icons/GreenDot.png)
Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

Most SparkFun RTK devices have a USB port for programming and status reports. This USB port can also be configured to output full NMEA/RTCM output that can be used to create a wired connection to an embedded system. See [Output GNSS Data over USB](menu_ports.md#output-gnss-data-over-usb) for more information.

## DATA Port

Torch: ![Feature Not Supported](img/Icons/RedDot.png)
Torch: ![Feature Not Supported](img/Icons/RedDot.png) / EVK: ![Feature Supported](img/Icons/RedDot.png)

For this example, we will connect the output from the **DATA** port of an RTK Facet to a [USB to Serial adapter](https://www.sparkfun.com/products/15096) so that we can view the serial data over a terminal connection.

Expand All @@ -37,7 +37,7 @@ The parsing of NMEA sentences is straightforward and left to the reader. There a

## External Terminals

Torch: ![Feature Not Supported](img/Icons/RedDot.png)
Torch: ![Feature Not Supported](img/Icons/RedDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

On devices that support it, external screw terminals provide direct access to the GNSS TX and RX signals via the 3.5mm screw terminal I/O header:

Expand All @@ -47,4 +47,4 @@ On devices that support it, external screw terminals provide direct access to th

* RX2 : u-blox ZED-F9P UART2 receive: 3.3V INPUT

Please see the [Reference Station Hookup Guide](https://learn.sparkfun.com/tutorials/sparkfun-rtk-reference-station-hookup-guide#hardware-overview) for more details.
Please see the [EVK Hookup Guide](https://docs.sparkfun.com/SparkFun_RTK_EVK/hardware_overview/#zed-f9p-secondary-uart-port) for more details.
2 changes: 1 addition & 1 deletion docs/firmware_update.md
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# Update Firmware

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The device has two primary firmwares:

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2 changes: 1 addition & 1 deletion docs/gis_software_android.md
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# Android

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While we recommend [SW Maps for Android](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/gis_software_android/#sw-maps), there are a variety of 3rd party apps available for GIS and surveying for [Android](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/gis_software_android/), [iOS](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/gis_software_ios/), and [Windows](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/gis_software_windows/). We will cover a few examples below that should give you an idea of how to get the incoming NMEA data into the software of your choice.

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2 changes: 1 addition & 1 deletion docs/gis_software_ios.md
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# iOS

Torch: ![Feature Supported](img/Icons/GreenDot.png)
Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

There are a variety of 3rd party apps available for GIS and surveying for [Android](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/gis_software_android/), [iOS](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/gis_software_ios/), and [Windows](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/gis_software_windows/). We will cover a few examples below that should give you an idea of how to get the incoming NMEA data into the software of your choice.

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2 changes: 1 addition & 1 deletion docs/gis_software_windows.md
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# Windows

Torch: ![Feature Supported](img/Icons/GreenDot.png)
Torch: ![Feature Supported](img/Icons/GreenDot.png) / EVK: ![Feature Supported](img/Icons/GreenDot.png)

There are a variety of 3rd party apps available for GIS and surveying for [Android](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/gis_software_android/), [iOS](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/gis_software_ios/), and [Windows](https://docs.sparkfun.com/SparkFun_RTK_Everywhere_Firmware/gis_software_windows/). We will cover a few examples below that should give you an idea of how to get the incoming NMEA data into the software of your choice.

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8 changes: 6 additions & 2 deletions docs/index.md
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Expand Up @@ -6,13 +6,16 @@ The line of RTK Everywhere products offered by SparkFun all run identical firmwa

<table class="table table-hover table-striped table-bordered">
<tr align="center">
<td><a href="https://www.sparkfun.com/products/26250"><img src="img/SparkFun_RTK_Torch.png"></a></td>
<td><a href="https://www.sparkfun.com/products/25662"><img src="img/SparkFun_RTK_Torch.png"></a></td>
<td><a href="https://www.sparkfun.com/products/24342"><img src="img/SparkFun_RTK_EVK.png"></a></td>
</tr>
<tr align="center">
<td><a href="https://www.sparkfun.com/products/26250">SparkFun RTK Torch (GPS-26250)</a></td>
<td><a href="https://www.sparkfun.com/products/25662">SparkFun RTK Torch (GPS-25662)</a></td>
<td><a href="https://www.sparkfun.com/products/24342">SparkFun RTK EVK (GPS-24342)</a></td>
</tr>
<tr align="center">
<td><a href="https://docs.sparkfun.com/SparkFun_RTK_Torch/">Hookup Guide</a></td>
<td><a href="https://docs.sparkfun.com/SparkFun_RTK_EVK/">Hookup Guide</a></td>
</tr>
</table>

Expand All @@ -24,6 +27,7 @@ There are multiple ways to configure an RTK product:
* [WiFi](configure_with_wifi.md) - Good for in-field changes
* [Serial Terminal](configure_with_serial.md) - Requires a computer but allows for all configuration settings
* [Settings File](configure_with_settings_file.md) - Used for configuring multiple RTK devices identically
* [Ethernet](configure_with_ethernet.md) - RTK EVK only

The Bluetooth or Serial Terminal methods are recommended for most advanced configurations. Most, but not all settings are also available over WiFi but can be tricky to input via mobile phone.

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