ESP8266/ESP32 Industrial-Grade Wireless Serial Port Bridge (Wi-Fi/UART)

Overview: Developed in 2019 and in mass production for over 7 years, this high-reliability Wireless Serial Port Bridge enables seamless bidirectional transparent transmission between UART and Wi-Fi. It is a mature "wireless cable" solution widely used in industrial automation for remote equipment monitoring and long-distance debugging.

► Skills used: ● Systems architecture ● PCB design (Altium/KiCad) ● ESP8266/ESP32 development(C/C++) ● VUE UI(HTML5/Javascript)

► Key Engineering & Product Features: ● App-Free Browser Interaction: The system utilizes WebSocket for real-time communication. Users don't need to install any apps or drivers; any device with a Web Browser and Wi-Fi can perform long-distance debugging on serial-based hardware. ● Remote Debugging via VPN: While primarily a local wireless bridge, the architecture supports Remote Debugging over a VPN, allowing engineers to troubleshoot any MCU/equipment which having UART/Serial from anywhere in the world. ● Zero-Code Configuration: Built-in Web Server for instant network setup and parameter adjustment without AT commands. ● Rapid Provisioning: Integrated WeChat Airkiss protocol for one-click Wi-Fi configuration via smartphone.

► Industrial Reliability: ● Self-Healing Logic: Hardware watchdog and automated reconnection protocols ensure 24/7 stability in noisy electrical environments. ● Dual Power Interfaces: Supports both USB Type-C (5V) and direct pin-header (5V/GND) inputs for easy integration into existing panels. ● Visual Diagnostics: Dual LED indicators for real-time status monitoring of AP and STA connections.

► Proven Market Longevity: ● Mass-Produced Since 2019: Over 7 years of field-tested reliability in diverse industrial and commercial sectors. This is a battle-hardened solution, not a prototype.

This project demonstrates my ability to design long-lifecycle industrial tools. I specialize in creating hardware that is not only powerful but incredibly easy to deploy. By leveraging the Pearl River Delta supply chain, I take mature designs from 2019 and maintain their market relevance through continuous firmware optimization.