RTK-EASY is a single ESP32 controller with an RTK GNSS receiver. The same device can run as a stationary BASE that generates RTCM corrections, or as a mobile ROVER that receives corrections and reports a precise position. The mode is switched from the web panel.
Version 1.0
You will need:
Mount the GNSS antenna in as open a spot as possible, away from roof edges, trees, metal structures and walls. How stable an RTK FIX you get depends heavily on the antenna's location.
If the device has not been activated yet, it starts its own activation page.
http://192.168.4.1 in a browser.Activation works without an internet connection. The license is tied to a specific Device ID. You can check which functions are active later in the License panel on the main page.
When RTK-EASY powers up, it tries to join the Wi-Fi network it last saved.
If it connects successfully:
http://192.168.1.120.If it cannot join Wi-Fi, the device starts its own configuration Wi-Fi network:
SSID: RTK-EASY-BASE Password: none Address: http://192.168.4.1
Join this network, open 192.168.4.1, enter your Wi-Fi SSID and password, and save. The device restarts and tries to join your network again.
If there is no OLED, the IP address and startup information are printed over USB Serial at 115200 baud.
At the top of the main page, press the RTK-EASY mode name and choose Rover or Base. A confirmation form appears. Press Apply / Switch to make the change.
Important:
The Rover profile enables GNSS position NMEA output and disables base RTCM generation. The Base profile enables base survey mode and the RTCM correction stream. Both profiles set an 8 Hz position update rate.
Base is a stationary reference station. Set the antenna up in a fixed, good location and do not move it while a rover is in use.
In the Base configuration, choose how corrections are sent:
The Base connects to an NTRIP caster and streams RTCM corrections to it. You need to provide the caster host, port, mount point and SOURCE password.
The Base opens a direct RTCM TCP stream on port 2101 on its own Wi-Fi network. Choose this mode when a rover connects straight to your base over a local Wi-Fi network.
The Base status screen shows:
RTCM STREAMING means the GNSS receiver is already generating correction data. NTRIP OK means it is connected to the caster. These are two separate states — both need to be good for an NTRIP base to actually deliver corrections.
The Rover receives RTCM corrections and computes a precise position.
In the Rover configuration, choose the connection method:
You need the caster host, port, mount point, NTRIP username and password. The rover connects to the mount point and receives corrections.
Enter the Base host — the base's IP address on the local network. The rover connects directly to the base's TCP port 2101 and receives its RTCM stream.
In NTRIP mode the rover can, where needed, forward its own GGA position back to the caster. In DIRECT mode no NTRIP connection is needed at all.
Rover status values:
| Status | Meaning |
|---|---|
GPS | Plain GNSS position, no RTK accuracy |
RTK FLOAT | Corrections are being received, but the full solution has not converged yet |
RTK FIX | Precise RTK solution, suitable for measurements |
age | Age of the corrections, in seconds — lower is better |
sats | Number of satellites in use |
Use RTK FIX for measurements and track logging. If the status is GPS or RTK FLOAT, wait for a better view of the sky, a stable correction link and a few minutes for the receiver to reach FIX.
Shows the path travelled. Only RTK FLOAT and RTK FIX points are recorded into the history; GPS points are not drawn as a track, to avoid a misleading, inaccurate line.
Measures the distance between recorded points. Wait for RTK FIX before recording a point. Once points are chosen, the page shows the total distance and can provide measurement details. This function must be included in the license.
192.168.4.1.