This guide demonstrates how to get precise coordinates from Reach on an Android device over Bluetooth.
Some of the GIS apps for Android used with Reach:
- Mobile Topographer Pro
- ESRI ArcGIS Collector
- Mapit GIS
The video below covers the process of connecting Reach to an Android device for data collection.
Make sure your Android device provides Bluetooth connectivity.
To output a centimeter accurate position, Reach should be in RTK mode. Refer to the How RTK works article to learn more.
Configure Reach unit to act as a rover in RTK.
Getting corrections from Reach RS2 base on Reach RS2 rover
Set up RTK communication between 2 Reach RS2 units over LoRa radio following this video guide.
Getting corrections from Reach RS+ base on Reach RS+ rover
Set up RTK communication between 2 Reach RS+ units over LoRa radio following this video guide.
Getting corrections from NTRIP/CORS
Configure NTRIP/CORS network as a source of positioning corrections for Reach rover following this guide.
Pairing Reach with an Android device
Access Reach rover using ReachView 3
- Get the app from Google Play or Apple Store
- Go to Wi-Fi settings on your device
- Connect to Reach hotspot. It appears as reach:XX:XX
- Enter password emlidreach
- Launch the ReachView 3 app
- Choose Reach from the list
- Open the Bluetooth configuration screen, enable Bluetooth connection and set on Always discoverable
Reach name is displayed just above its MAC. In this guide, we used the unit named as Reach.
Access an Android device
- Navigate to the Bluetooth configuration screen. Activate the Bluetooth connection
- Wait for Reach to be listed as an available device
Keep Reach within a few meters from your Android device.
- Tap the name of your Reach in the list of available devives on the Android device
- You should receive a pairing request from Reach
- Enter the PIN code of your Reach unit and confirm it
Reach and Android device are now paired:
Position output from Reach to Android
- In the ReachView 3 app, navigate to the Position output screen
- Activate Output 1, set it to BT and select solution output format to NMEA. After that, click the Apply button
You might see the "Write error" message in some cases. This is fine as long as there is no client connected to the NMEA stream yet.
Android mock location
We provide a guide on how to use Reach with Lefebure NTRIP Client.
Besides being an NTRIP Client, this app also allows NMEA data input via Bluetooth and supports Android feature called mock location. This feature allows substituting your device's built-in GPS receiver with an external location provider.
Lefebure NTRIP Client allows GIS apps in the Android device to use accurate coordinates from Reach.
- Install the app Lefebure NTRIP Client in your Android device
- Open Developer Options on your Android device and choose Lefebure NTRIP Client in the Select mock location app field
It is recommended to switch off the power-saving mode on your phone as it may limit background data usage for the Lefebure NTRIP client app.
- Launch the Lefebure NTRIP Client app and tap on the settings icon (gear in the upper right corner)
- Go to the Receiver Settings
Inside Receiver Settings:
- Configure Receiver Connection as External via Bluetooth
- Change Bluetooth device to the Reach you are paired with
- Change Bluetooth Connection Method to Secure via Reflection
- Enable GPS Mock Locations
- Go back to the main screen and hit Connect button
Check the log messages to confirm the Bluetooth connection got established and the information about satellites is updated.
From this moment on, all apps in the Android device that use location services will automatically have access to the positional data streamed from Reach. You can just open a GIS app you want to use and start surveying.
Tapping the Disconnect button in the Lefebure NTRIP Client will revert back to the Android built-in GNSS.
Collecting Data with Reach and ArcGIS
We provide a video tutorial explaining how to use Reach with ArcGIS.