NMEA2WIFI AP ONLY NETWORK
In the Access Point (AP) Only mode the NMEA2WIFI multiplexer creates a wifi network and smartphones, tablets or computers connect to this wifi network to receive/send data from/to NMEA2WIFI. In this panel, you specify the name and the password of the wifi network that smartphones, tablets and computers should use to join this network. When working as an Access Point, NMEA2WIFI uses IP address 192.168.4.1 and supports DHCP. A maximum of 5 clients can join the network and are assigned consecutive IP addresses (eg 192.168.4.2 ...). Security is WPA2-PSK. Ssid and Password can have a maximum of 15 characters and a minimum of 4 and 8 characters, respectively. When you need to change any setting of NMEA2WIFI you should connect to this newtork and then write 192.168.4.1 in the navigation bar of a browser to get the page that you are reading now.

EXTERNAL NETWORK
If you already have an existing working wifi network and want NMEA2WIFI to join that network as a Client Station, you should enter here the authentication parameters that NEMA2WIFI should use to join this existing network. Ssid and Password can have a maximum and a minimum size of characters as before. If you want the mutiplexer to receive an automatic IP address from the external network you enter 0 (zero) in the IP ADDRESS text box. If you want to use a Static IP Address you should enter it in tHis text box.

SERIAL PORTS SETTINGS
NMEA2WIFI has two input serial ports named as P#1 and P#2 and one serial output port, named as P#3. All the data that is sent out at P#3 is also sent out by USB The baud rate of serial input P#1 can be 4800 or 9600 baud. In addition you can set SeaTalk in the baud rate listing box setting of P#1. If you do so, input on P#1 is interpreted as being SeaTalk1 datagrams and conversion of these datagrams into Nmea 0183 sentences takes place. The baud rate of P#2 is adjustable between 4800, 9600, 19200 or 38400. In addition you can set this baud rate as USB. If you do so data arrived on P#2 is ignored and instead the multiplexer reads data from the USB port using the baud rate specified for P#3. This baud rate can be as high as 115200. It is important to note that if the baud rate of the output port is inferior to those of the input ports, data may be lost. Data received on the input ports P#1 and P#2 can be routed to the output serial port P#3 or sent out by Wifi using the UDP or the TCP protocol or both.

WIFI SETTINGS
NMEA2WIFI can use UDP, TCP or both protocols to send and receive data through wifi. You can turn one protocol inactive by setting its port number equal to zero. Non zero port numbers, either UDP or TCP, should be in range from 1024 up to 65535. By default, NMEA2WIFI uses UDP broadcasting on port number 2000 (compatible with the Navionics Android App). UDP broadcasting assures that all the clients connected to the wifi network listening to the specified UDP port number will receive the packets by the multiplexer. You should set the protocol (UDP or TCP) and the corresponding port number on the client device(s) that receive/send data from/to the NMEA2WIFI multiplexer. You also need to specify the IP address of the mutiplexer if using TCP. In the case of AP ONLY mode, you specify the IP address 192.168.4.1. If the multiplexer is also connected to an external network you can specify the IP address that is assigned by the external network. It is important to note that only one connection with the multiplexer can be active through the TCP protocol but, at the same time, you can have multiple UDP connections. It is suggested to use TCP to receive data and UDP
to send data out. Finally you can set the destination of data received by Wifi. It can be routed to the serial output port P#3 or it can be sent out by UDP (if received by TCP) or by TCP (if received by UDP).

SETTING OPERATING MODES
In addition to the above parameters, you have 4 radio buttons to choose between: (i) working in AP mode only, (ii) also connect as a Client Station, (iii) enter Simulation Mode and (iv) enter Debug Mode. You press the SET button for NMEA2WIFI to accept the parameters in this page. If there are no errors in the parameters, NMEA2WIFI changes its operation to the mode and the selected settings.

FACTORY SETTINGS AND UPDATE
Pressing the Factory Reset button is the same as an hardware reset of the system. The factory setting uses the following parameters: Mode: Access Point; Ssid: NMEA2WIFI; Password: 12345678; IP Address: 192.168.4.1; Wifi Protocol: UDP; UDP Port Number: 2000; Serial Port P#1 Baud Rate: 4800; Serial Ports P#2 and P#3 Baud Rates: 38400; Serial Output on P#3: none; Wifi Output: both P#1 and P#2. Pressing UPDATE will allow you to to update your firmware to the latest available version.