Vela-Navega multiplexers support many different configurations and applications. They can combine serial data, receive wired serial data and retransmit it over WiFi, and receive wireless data and output it through wired serial ports. The Nmea2Wifi, Nmea3Wifi and Nmea4Wifi can convert SeaTalk1 data into NMEA 0183 sentences, while the Nmea3Wifi can also convert NMEA 0183 data into SeaTalk1. The N2K0183 provides bidirectional conversion between N2K messages and NMEA 0183 sentences. Our latest and most advanced model, Nme3Pro, integrates N2K, SeaTalk1, NMEA 0183, WiFi and USB, allowing bidirectional conversion, filtering and routing between these systems. The simplest and most common application remains the creation of a WiFi network that makes the boat’s instrument and AIS data available to connected computers, tablets and smartphones.

The Vela-Navega range comprises five multiplexer models: Nmea2Wifi, Nmea3Wifi, Nmea4Wifi, N2K0183 and Nme3Pro. The current standard versions are supplied as pre-assembled SMD (Surface-Mount Device) units. The earlier TH (Through-Hole) and KIT versions are no longer available for sale, but remain fully supported with documentation, firmware updates and technical assistance. The exception is the Nmea4Wifi XL Through-Hole model, which continues to be available for sale. The N2K0183 and Nme3Pro are available only as pre-assembled SMD units.

The Nmea3Wifi and N2K0183 multiplexers resulted from collaborative work with Richard Clutterbuck, to whom we are very grateful. Richard also made an invaluable contribution to the development of Nme3Pro through code development and implementation, extensive testing, technical discussions and many important suggestions.

You can learn more about each multiplexer by following the menu on the right of this page or by visiting its dedicated support forum.