Data Sheet
WT32-ETH01 DATASHEET
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also be an IP address from a different LAN or an IP address across the public network. If connecting to a server
across the public network, the server is required to have a public IP.
6.3.2 TCP Server
It is usually used for communication with TCP client in LAN. It is suitable for the scenario where there is no server
in the LAN and there are multiple computers or mobile phones requesting data from the server. The same as TCP
Client, TCP server has the difference between connection and disconnection to ensure reliable exchange of data.
6.3.3 UDP Client
UDP Client is a connectionless transport protocol, providing transaction-oriented simple and unreliable
information transmission services. There is no connection establishment or disconnection, and data can be sent
to each other only by specifying IP and port. It is usually used in data transmission scenarios where there is no
requirement for the packet loss rate, the data packets are small and the transmission frequency is relatively fast,
and the data is transferred to the specified IP.
6.3.4 UDP Server
UDP Server means that the source IP address is not verified on the basis of ordinary UDP. After receiving a UDP
packet, the destination IP is changed to the data source IP and port number. When sending data, send it to the IP
and port number of the most recent communication
This mode is usually used in data transmission scenarios where multiple network devices need to communicate
with the module and do not want to use TCP due to the high speed and frequency.
6.4 Serial Port Function
6.4.1 At Command Settings
Users can input AT commands through serial ports to set functions for a module.
6.4.2 Transmitting Serial Data
The user makes the module enter the data transmission mode through AT command. The module can directly
transfer serial port data to the corresponding data transmission end (wifi, Ethernet or Bluetooth) through the set
passthrough channel.
6.5 Bluetooth Function
6.5.1 Bluetooth Data Transmission
Through the existing Bluetooth function of the module, the module can obtain Bluetooth data, and through the
set pass-through channel, the Bluetooth data can be directly transferred to the corresponding data transmission
end (wifi, Ethernet or serial port).










