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Cover image for ESP8266/ESP32 Industrial-Grade Wireless Serial Port
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.
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Cover image for 24V BLDC Motor Controller with
24V BLDC Motor Controller with Field-Oriented Control (FOC) Designed a custom 24V three-phase BLDC motor controller PCB for precision robotic motion control using Field-Oriented Control (FOC). The project focused on creating a modular, high-performance embedded hardware platform capable of delivering accurate torque, speed, and position control for robotic joints, gimbal systems, and industrial automation applications. Key Features 1) Custom schematic design for a 24V FOC motor controller 2) STM32G431-based embedded control architecture 3) Three-phase MOSFET inverter driven by a DRV8353 gate driver 4) High-resolution magnetic encoder interface (SPI) for closed-loop position feedback 5) Three-phase current sensing using precision shunt resistors and current-sense amplifiers 6) CAN Bus communication for integration into distributed robotic systems 7) Integrated protection circuitry, including reverse-polarity protection, over-current protection, and transient voltage suppression 8) Dedicated SWD programming and debugging interface 9) Optimized power distribution for separate 24V, 5V, and 3.3V domains Project Outcome The design provides a complete hardware platform for implementing advanced FOC algorithms capable of smooth, efficient, and highly accurate BLDC motor control. The architecture is suitable for robotics, precision actuators, autonomous systems, industrial automation, and research applications requiring high-performance motion control.
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