It happened many times - we are in the saloon, either in a marina or on anchor, and then someone asks: how strong is the wind? And I have to go to the cockpit, switch on an instrument and read the display. In order to simplify this and get all the boat data in the display of my smartphone, I developed Nmea2Wifi. I am selling this module on Ebay, You can buy it through Ebay by searching with keywords (BIDIRECTIONAL NMEA 183 TO WIFI MULTIPLEXER) or you can contact me directly by email (see the Home Page).
This module allows bidirectional wifi communication between your smartphone, tablet or laptop and your boat instrumentation. Your smartphone will be able to display navigational information or control an autopilot.
The system has 2 opto-isolated full Nmea 0183 compatible input ports. One port is used to receive instrument data at the rate of 4.800 or 9.600 baud. The other port has an adjustable baud rate from 4.800 up to 38.400 and can receive AIS data. The 2 streams of data may be combined and transmitted over wifi to connected receivers. In addition, the module also has an output NMEA 0183 port with an adjustable baud rate from 4.800 up to 38.400. The output port can transmit data received by the 2 input ports or by wifi. You can use this module in different ways. You can use with a PC running navigation software such as OpenCPN or you can use it with several free apps for Android or Ios. For example, you can use SeaWi to get a backup of your chart-plotter on your tablet or you can get Sonar Chart Live maps on your Navionics Boating HD app. Here is a video by Navionics: