[Interface]：TTL serial port + RJ45
[Working voltage]：DC 2.9~3.6V
[Packaging]：Ethernet port
[Product size]： 32.5*16.5*17.5mm
[Product weight]：9±1g
| Project | instruction |
| Operating Voltage | DC 2.9~3.6V 3.3V power supply is recommended, and the power supply load capacity is recommended to be above 400mA |
| Working current | Peak: 180mA@3.3V Standby: 160mA@3.3V |
| Working mode | TCP Server (default), TCP Client, UDP Server, UDP Client, HTTP Client, MQTT Client |
| Socket connection | TCP server single link supports 5 client connections |
| Network protocol | TCP/UDP, MQTT, HTTP, IPv4, DHCP, DNS |
| IP acquisition method | Static IP (default), DHCP |
| DNS domain name resolution | Support |
| Domain name resolution server | 114.114.114.114 (customizable) |
| Configuration method | Webpage, parameter configuration tool, AT command |
| IP address | 192.168.3.7 (customizable) |
| User name | admin (customizable) |
| Password | admin (customizable) |
| Local port | 8886 (customizable) |
| Subnet mask | 255.255.255.0 (customizable) |
| Gateway | 192.168.3.1 (customizable) |
| Serial port cache | 10kByte or 1024 packets |
| Packing mechanism | Maximum 1024Byte, 1~80 bytes idle time |
| Serial port baud rate | 600~460800 bps (default 115200) |
| Data bit | 5, 6, 7, 8 (default) |
| Stop bit | 1 (default), 1.5, 2 |
| Parity bit | None (default), Odd, Even |
| Product size | 32.5×16.5×17.5mm |
| Product weight | 9±1g |
| Working temperature and humidity | -40~+85℃, 5%~95%RH (no condensation) |
| Storage temperature and humidity | -40~+105℃, 5%~95%RH (no condensation) |
Practical Application Scenarios
1. Embedded Device Networking
The NE2-T1M is ideal for retrofitting legacy TTL-based serial devices (such as sensors, meters, or controllers) into modern TCP/IP networks. Its compact size allows for direct integration onto PCBs within existing equipment, providing an instant Ethernet interface without the need for complex hardware redesigns.
2. Microcontroller (MCU) Remote Connectivity
Embedded systems using MCUs often require long-distance communication that UART cannot provide. By pairing this module with an MCU's UART pins, developers can establish a transparent data bridge, allowing the microcontroller to send and receive commands over local networks or the internet for remote asset management.
3. Industrial Data Acquisition Nodes
For applications requiring high-density data collection, this module acts as a bridge between localized sensor clusters and central servers. It enables lightweight, low-power IoT terminals to transmit raw sensor data over stable wired Ethernet, ensuring reliable and high-speed data throughput compared to wireless alternatives in interference-heavy environments.
FAQ Section
1. Is the NE2-T1M compatible with standard Modbus TCP/RTU conversion?
Yes, the NE2-T1M is designed to handle serial-to-Ethernet transparent transmission, making it fully capable of supporting protocol conversion for Modbus networks when used with appropriate host software or master controllers.
2. Can I power this module directly from a 5V source?
No, the operating voltage is strictly limited to DC 2.9 to 3.6V. Using a 5V power supply will damage the module; please ensure your circuit includes a reliable voltage regulator or buck converter to step down power to the required range.
3. Does this module support auto-MDI/MDIX for the RJ45 interface?
Yes, the module is designed for standard Ethernet networking, allowing for straightforward connection to switches, routers, or hubs without needing specialized crossover cables.
