EBT3001 Ethernet SMD Module
[Operating Voltage]：2.1V~3.6V(DC)
[Working Mode]：TCP Server、TCP Client、UDP Server、UDP Client、HTTP Client、MQTT Client（default TCP Server）
[Gateway]：Customizable (default 192.168.3.1)
[Baud Rate]：1200~230400bps
[Size]：5*5mm
[Introduction]：EBT3001 is a serial port chip that realizes serial port data ⇌ Ethernet data conversion;It has a variety of Modbus gateway modes and MQTT/HTTP IoT gateway modes, which can meet the networking functions of various serial devices/PLCs.
| NO. | Pin | Function | Remark |
|---|---|---|---|
| 0 | GND | Power Supply | Common ground, voltage 0V reference point, power supply negative input; |
| 1 | VDCID | Power Supply | The internal digital circuit LDO regulator has a power input that requires an external decoupling capacitor.2.2uF is recommended, no less than 0.1 uF is recommended; |
| 2 | VSW | Power Supply | Internal DC-DC switching output, which must be connected to VDCID in series 22uH inductors close to pins; |
| 3 | VIO33/VBAT | Power Supply | I/O and DC-DC or battery power inputs require external decoupling capacitors close to the pins.2.2uF is recommended, no less than 0.1 uF is recommended; |
| 7 | LINKLED | I/O/A | The network cable is inserted into the indicator end, the output is connected low, and the output is not connected to the high level; |
| 8 | SPDLED | I/O/A | SPD indicator end |
| 11 | RX_P | I/O/A | Ethernet receives the RX+ signal side |
| 12 | RX_N | I/O/A | Ethernet receive RX-signal side; |
| 13 | TX_P | I/O/A | Ethernet transmits TX+ signal side; |
| 14 | TX_N | I/O/A | Ethernet transmits TX-signaling end; |
| 17 | TXD0 | I/O/A | Serial port transmits data terminal, TTL level communication voltage only supports 3.3V, if 5V needs to be level shifted; |
| 18 | RTS | I/O/A | The MODEM output signal of the serial data is sent upon request; |
| 20 | RXD0 | I/O/A | Serial port receives data terminal, TTL level communication voltage only supports 3.3V, if 5V needs to be level shifted; |
| 21 | 485_EN | I/O/A | RS485 software enables the control terminal, the serial port sends data as a high level output, the default is a low level output; |
| 24 | CTS | I/O/A | Serial data at the MODEM input signal end, clear the transmission; |
| 25 | nRST | I/O/A | External reset input, active low; |
| 27 | LED2 | I/O/A | The default output is high on the link indicator side of the network port, and the output is low after the connection is successful under the TCP protocol.Default output low level under UDP protocol; |
| 28 | LED1 | I/O/A | Running the indicator terminal, after the module is initialized on power, the pin outputs a square wave of 5Hz; |
| 31 | X32MO | I/O/A | Inverting output of the frequency oscillator HSE, with one end of an external 32MHz crystal; |
| 32 | X32MI | I/O/A | The input of the HSE of the high-frequency oscillator, the other end of the external 32MHz crystal; |
| 33 | VINTA | Power Supply | The power node of the internal analog circuit needs to be close to the pin with an external 2.2uF decoupling capacitor; |
| 35 | VDCIA | Power Supply | The power input of the internal analog circuit LDO regulator requires an external decoupling capacitor. It is recommended to be no less than 0.1uF, it is recommended to connect VDCID directly through a magnetic bead; |
| 36 | IO_RST | I/O/A | Restore the factory end, need to connect the external reset button, low level for about 5s effective; |
| 43 | TXD_LEDRXD_LED | I/O/A | The serial port transmits the indicator terminal, the default output is high, the output is low when there is a data output, and there is data continuously.Square wave signal with an output period of 80ms and a low level of 20ms; |
| 44 | RXD_LED | I/O/A | Serial port receives the indicator terminal, the default output is high, the output is low when there is a data input, and there is data continuously.Square wave signal with an output period of 80ms and a low level of 20ms; |
| 4~6,9~10,15~16,19,22~23,26,29~30,34,37~42,48~48 | RESERVED | - | Keep it hanging; |