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The WiFly RN340 WiFi Serial Adapter provides a gateway between marine wired devices such as chart plotter networks, AIS devices and marine radios, and wireless devices such as tablets and PCs. One the wired side, this adapter can be connected to serial RS232 devices using the DB9 serial port. On the wireless side, users can connect mobile devices such as iPads or PCs by joining the adapter's wireless network and configuring the marine app's network setup for UDP on port 2000. Data is sent as serial NMEA 0183 sentences. Wireless devices are automatically assigned an IP address when they join the units Wi-Fi network using an integrated DHCP server.
Milltech Marine pre-programs these gateways for use in marine environments and to make the setup as easy as possible for most marine scenarios. The adapter is configured to serve up to seven wireless device connections using UDP, meaning you can have up to 7 phones, tablets, PCs all connected and using the wireless marine data simultaneously. The WiFly RN340 WiFi Serial Adapter unit is fully programmable and can be reconfigured to join an existing Wi-Fi network or use different baud rates. The default wired baud rate is 38400.
The unit must be powered using the included AC adapter or 5 volt DC power.
Here are some examples for how this device can be used onboard to send marine NMEA data to multiple wireless devices such as iPads, smartphones or PCs:
- Connect the WiFly RN340 directly to the serial port on an SR162G AIS/GPS receiver, plug in the power and connect your wireless device to the Wi-Fi SSID. Your wireless device app will receive AIS and GPS data as standard NMEA data.
- Send AIS and GPS data from an AIS transponder that does not support wireless to wireless devices. For example, to connect a CAMINO-101, simply use the included CAMINO serial cable to connect the CAMINO-101 serial port to the serial port on the RN340. That's it!
We have tested this device and can confirm it works well with Rose Point Coastal Explorer
on Windows-based PCs, and iNavX, SEAiq and Nobeltec Timezero on iOS devices (iPhone and iPad). If you need to multiplex two marine devices (such as a chartplotter and an AIS system) into a single wireless data stream, consider the Comar NMEA-2-WIFI Convertor
. We also sell the ATC Serial to Wi-Fi Adapter
which has support for true NMEA RS422 connections.
- WiFly RN340 WiFi Serial Adapter unit
- Wi-Fi antenna
- AC-DC power supply (110VAC-5VDC)
- Serial cable with male DB9 and female DB9
- Milltech Marine Quick Start Guide