![]() When acting as a TCP client, it also supports TCP server-side functions. Support TCP server, TCP client, UDP mode, and UDP multicast.If the network cable is unplugged at this time, the LINK will change to 1. When it is 0, the module has established TCP/UDP connection with the network server, and the module can send and receive data normally. ACT=1, which cannot be used as a flag for no data communication. But when there is data, this pin will jump between 0 and 1. When it is 0, it indicates that there is data being sent and received at the serial port. When it is 0, it indicates that the module RJ45 network cable is connected.ĭata indicator. Hardware flow control input, when the chip is configured for CTS/RTS, DSR/DTR serial mode, only when CTS=0, the chip serial port will output data to the outside. After the flow control is set to CTS/RTS, DTR/DSR, RTS=0 normally, if RTS=1, it means the module can't receive data and the user MCU should stop sending data to the module. It can be connected directly to the TXD_EN pin of the MAX485 chip. The 485 transmit controller, normally 0, becomes 1 when the module sends data to the serial port. You can connect a 4.7K resistor and then connect the LED to the ground and the LED is on indicating the chip has been working. Working indicator, the chip works properly, and will output a square wave with a period of 2 seconds. ![]() You can also set your own reset parameters with the param.txt configuration file. When the parameter is reset to 0 and held for more than 1 second, the module will restart with the default IP of 192.168.1.254, static IP mode, 255.255.255.0 gateway, and 192.168.1.1 gateway. Serial data receiving pin of the module, 3.3V TTL level, can be connected to the user MCU's TXD. ![]() Serial data transmitting pin of the module, 3.3V TTL level, can be connected to RXD of user MCU. Noise can be filtered by a 0.1u capacitor. It is recommended to use max811reus or a similar reset chip. User-defined heartbeat/registration packet, User-defined web page. Host, web browser, device management functions library PoE network port, support IEEE 802.3af standardĭC power port, screw terminal, or PoE portĬan be used as Serial server, Modbus gateway, MQTT gateway, suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring.ĮTHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS (supports wall-mount and rail-mount installations)īi-directional transparent data transmission between serial port and Ethernet PoE Network port + isolated RS232/485/422 ![]() It has a UART interface and an Ethernet interface. It is a UART to Ethernet module designed for industrial environments, small in size, easy to embed and integrate, with device data collector/IoT gateway, serial server, Modbus gateway, MQTT gateway, UART to JSON, and many other functions in one. ![]()
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