esp32-mbedded-serial-to-ethernet-module

This ESP32 embedded serial to Ethernet module is a compact Wi-Fi, Bluetooth and RJ45 bridge for industrial and IoT networking. It’s like a universal network adapter that turns legacy serial devices into IP-ready nodes without redesigning hardware. Target users are embedded engineers and OEMs needing reliable serial-to-Ethernet and wireless conversion, low-power operation and wide temperature tolerance for harsh environments. The module supports 802.11 b/g/n/e/i Wi-Fi at 2.4–2.5GHz up to 150Mbps with A-MPDU/A-MSDU aggregation and short guard interval, plus Bluetooth 4.2 BR/EDR and BLE with NZIF receiver and -97dBm sensitivity for robust short-range links. On the hardware side it integrates a 10/100Mbps adaptive RJ45 port, wide serial baud rate from 80 to 5,000,000bps, 32Mbit on-board Flash and flexible 5V or 3.3V supply, drawing about 80mA with at least 500mA available, and operating from -40°C to +85°C for industrial deployment. Optional half-pad or through-hole packaging helps fit both compact SMT designs and more DIY-friendly or retrofit boards, expanding its niche from mass production to lab and education projects. Software features map to full-funnel search intent: developers can configure Wi-Fi as Station, SoftAP, combined SoftAP+Station or P2P, secure links with WPA, WPA2, WPA2-Enterprise or WPS, and rely on AES, RSA, ECC and SHA encryption for enterprise-grade security. For networking it supports IPv4 over TCP/UDP with static IP or DHCP, while simple transmission modes like TCP/UDP server or client and an AT+ command set make it easy to prototype, script and automate. OTA firmware upgrades via network and an SDK for secondary development address advanced users who want to customize firmware, integrate with cloud platforms or optimize latency and throughput. Unique value comes from the combination of wide baud rate, industrial temperature range, dual Wi-Fi/Bluetooth plus Ethernet and flexible packaging, which reduces integration risk and speeds time-to-market for serial device networking, gateway design and retrofitting existing RS-based equipment into modern IoT systems.