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DFRobot Embedded Serial to Ethernet Module based on ESP32 Series The Embedded Serial to Ethernet Module is a versatile gateway based on the powerful ESP32 series that simplifies connecting your serial devices to networks. This module comes with an optimized TCP/IP protocol stack that makes it easy to add networking capabilities to your embedded projects while saving development time and costs. The heart of this module is the ESP32 system-on-chip that combines 2.4GHz WiFi and Bluetooth dual-mode connectivity with exceptional performance, stability, and remarkably low power consumption. Whether you're a student working on an IoT project or a shop owner looking to offer smart connectivity solutions, this module provides an accessible way to bridge traditional serial devices with modern networking. This IoT communication module offers impressive versatility with four working modes (TCP Server, TCP Client, UDP Server, and UDP Client) and supports six different data transparent transmission modes. It allows you to create powerful connections between serial ports, WiFi, Ethernet, and Bluetooth interfaces in various combinations. The module excels in practical applications like smart agriculture, where it can collect and transmit data from sensors measuring air temperature, humidity, soil conditions, pH values, and carbon dioxide levels directly to a server. With its abundant IO ports, the module can also control ventilation and heating equipment based on temperature readings. This makes it an ideal solution for anyone looking to implement ESP32 gateway functionality in IoT scenarios without dealing with complex networking protocols. Note: The applicable temperature of the product is -20°C~+70°C Features Based on ESP32 series with integrated 2.4GHz WiFi and Bluetooth dual-mode Supports four working modes: TCP Server, TCP Client, UDP Server, and UDP Client Offers six different data transparent transmission modes for flexible connectivity Connects to the Internet or local networks through router with TCP/UDP connections Collects and transmits data from various environmental sensors to servers Provides abundant IO ports for temperature monitoring and equipment control Operates reliably in temperature range from -20°C to +70°C
| Category | Specification |
|---|---|
| RF Certification | FCC/CE/RoHS |
| Protocol | 802.11 b/g/n/e/i (802.11n, up to 150Mbps), A-MPDU and A-MSDU aggregation, 0.4 second guard interval support |
| Frequency Range | 2.4~2.5GHz |
| Protocols | Compliant with Bluetooth V4.2 BR/EDR and BLE standards |
| Radio Frequency | NZIF receiver with -97dBm sensitivity |
| Network Port | RJ45, 10/100Mbps, cross-direct connection adaptive |
| Serial Baud Rate | 80~5000000 |
| On-board Flash | 32Mbit |
| Operating Voltage | 5V or 3.3V power supply (optional) |
| Working Current | Average 80mA |
| Supply Current | Minimum 500mA |
| Operating Temperature Range | -40°C ~ +85°C |
| Ambient Temperature Range | Normal temperature |
| Packaging | Half pad/through-hole connector (optional) |
| Wi-Fi Mode | Station / SoftAP / SoftAP+Station / P2P |
| Wi-Fi Security | WPA / WPA2 / WPA2-Enterprise / WPS |
| Encryption | AES / RSA / ECC / SHA |
| Firmware Upgrade | Remote OTA upgrade via network |
| Software Development | SDK used for further development |
| Network Protocol | IPv4, TCP / UDP |
| IP Access Methods | Static IP, DHCP (default) |
| Simple Transmission Mode | TCP Server / TCP Client / UDP Server / UDP Client |
| User Configuration | AT+ commands set |
The module operates reliably from -20°C to +70°C, making it suitable for industrial and outdoor environments.
It supports TCP Server, TCP Client, UDP Server, and UDP Client modes with transparent data transmission over WiFi and Bluetooth.
Yes, the SES-P-1786 is compatible with Arduino, Raspberry Pi, and other microcontrollers via serial communication.
Common uses include smart agriculture, environmental monitoring, industrial automation, and remote sensor data logging.
Shop DFRobot SES-P-1786 ESP32 module for serial-to-Ethernet connectivity. Compatible with Arduino & Raspberry Pi. Ideal for IoT, industrial automation.
