Function description:  Control the pull-in and release of 1 relay through the Ethernet network, with a shell. The module supports both TCP and UDP two operation modes, the instructions are simple and easy to understand, and the jog and 1-65535 seconds delay can be specified in the instruction. The module is equipped with VB, host computer program and source code to help you easily realize computer remote control. In TCP mode, the host computer can query the status of the relays, and after each instruction is processed, the module will return the status of all the relays. There is no status query or other return in UDP mode, and the code is extremely simple, which is easy to be embedded in various applications. Now supports cloud remote control and WeChat remote control.     Features:  Industrial-grade STC single-chip microcomputer as the main control chip.  Onboard 1 high-quality relay, relay with absorption diode circuit.  With module status indicator, relay indicator, the light is on and the relay is closed.  Configurable to restore the state of the relay before power failure.  Configure module parameters through the network.  Through internet control, cloud remote control is protected by local password, safe and reliable.  5-24V input voltage (Inner positive, External negative).  1.6mm thick PCB is made of military grade FR-4 board, and the shell size is 82mm X 50mm X 32mm.     The factory settings of the module are:  IP address: 192.168.1.100; Default gateway: 192.168.1.1; Subnet mask: 255.255.255.0 (Can be configured via network); TCP port: 6722; UDP port: 6723(The service port of the module cannot be configured); Save the state of the relay before power failure: NO. (Can be configured via network).     Package includes:  1 x TCPUDP Module Controller