Embedded Systems Projects in ChinaEmbedded Systems Projects in ChinaESP32-P4 SOM: Dual-Core AIoT Hub with Advanced Multimedia
Overview:
The ESP32-P4 SOM is a flagship, low-power, cost-effective computing core launched in 2026. Featuring a unique ESP32-P4 + ESP32-C6 dual-chip architecture, it bridges high-performance application processing with advanced WiFi 6 and Bluetooth 5 (LE) connectivity. This "Minimum System" is engineered into a compact 40x30mm footprint, providing a ready-to-use engine for the next generation of smart multimedia devices.
► Skills Used:
● Dual-SoC System Architecture (P4 + C6)
● DFM & Yield Optimization
● EMI/EMC Engineering
● BOM Optimization
● Firmware Development(C/C++).
► "One Board, Triple Mounting Options":
Designed for maximum versatility across different development phases and deployment environments:
● Flexible Integration: A single PCBA design supports three mounting configurations: Dual BTB connectors, Single BTB, or LGA (Land Grid Array). This allows developers to switch between easy-to-swap modules for prototyping and low-profile, vibration-resistant mounting for mass production.
● Rapid Development Ecosystem: By routing up to 80 GPIOs to the module interface, clients only need to design a simple 1-4 layer carrier board. This drastically shortens the R&D cycle and reduces hardware validation costs.
● Highly Integrated Design: Despite its small size, the module houses the SoC, PSRAM, Flash, PMIC, and the ESP32-C6 communication co-processor, complete with reserved shielding for superior EMI performance.
► Key Engineering & Product Features:
● Network Versatility: In addition to WiFi 6, the module provides a dedicated Ethernet extension interface, ensuring high-speed and ultra-stable wired connectivity for industrial environments.
● High-Speed Multimedia: Native support for MIPI DSI (Display) and MIPI CSI (Camera), enabling high-definition visual interfaces and real-time image processing.
● Advanced Audio & Storage: Integrated voice input and audio output interfaces for interactive systems, plus high-speed TF card support for localized data storage.
● Connectivity-Rich: Powered by the ESP32-C6 co-processor to provide stable WiFi 6 and BLE connectivity, ensuring the P4 main processor remains dedicated to heavy computational tasks.
● Massive I/O Capability: With 80 GPIOs available, the module can control complex arrays of sensors, actuators, and peripheral devices simultaneously.
► Target Applications & Solutions:
● Smart Security: Advanced Access Control Systems utilizing MIPI camera input and local processing.
● Voice AI: Smart AI Speakers with high-fidelity audio I/O and localized voice recognition capabilities.
● Industrial HMI: Low-cost Human-Machine Interfaces that require fluid graphical displays and low power consumption.
This ESP32-P4 SOM represents the pinnacle of "Efficiency Meets Performance." By decoupling the high-speed processing core from the carrier board, I provide a pre-verified, mass-production-ready platform that allows you to deploy complex, multimedia-rich AIoT solutions with unmatched speed and technical confidence. RK3326s SOM: Modular "Minimum System" for Rapid Deployment
Overview:
The RK3326s SOM is a highly integrated, 6-layer System-on-Module designed to function as a complete, "plug-and-play" computing core. By utilizing a 260-pin DDR4 SO-DIMM interface, this module eliminates the need for secondary reflow soldering—a common cause of defects in LGA-based modules—while enabling rapid assembly and field-swappability for industrial and consumer applications.
► Skills Used:
● High-Speed Systems Architecture.
● PCBA design (Altium/KiCad)
● Linux Kernel/APP development(C/C++)
● DFM & Production Optimization
● EMI/EMC Engineering
● BOM Optimization
► "One Core, Infinite Carrier Boards":
The modular design is engineered to slash development cycles and R&D costs for new product categories:
● Full GPIO Breakout: All essential I/Os are routed to the SO-DIMM interface, allowing clients to develop simple 1-4 layer carrier boards for specific projects.
● Elastic Material Compatibility: Pre-engineered to support 10+ WiFi modules, DDR3/LPDDR3 DRAM, and EMMC/NAND Flash variants, ensuring a resilient supply chain against component shortages.
● Streamlined Production: Avoids the "Double-Reflow" trap, significantly lowering the barrier for entry for smaller factories and reducing the scrap rate during mass production.
► Key Technical Features:
● Ultra-Fast Boot: Optimized Linux kernel achieving a 18-second cold boot time.
● Memory Efficiency: Stable and fluid operation on configurations as low as 512MB DRAM + 1GB EMMC.
● Ruggedized Layout: Built-in immunity to high-frequency interference, ideal for smart kitchen appliances and industrial environments.
● Dual-OS Support: Native compatibility with both Android and Linux, providing flexibility for diverse UI and logic requirements.
► Scalability & Proven Success (Mass Production):
● Industrial Automation (ESOP): Deployed as the central processing unit for factory-wide Electronic Standard Operating Procedure systems.
● High-End Consumer Tech (LG DUOBO): Trusted as the core compute engine for premium smart devices.
● Smart Kitchen Appliances: Successfully integrated into high-power microwave steam ovens, leveraging its radiation-resistant design.
This SOM represents my commitment to "Zero-Defect Manufacturing." I provide a hardware core that is not only powerful but also audited for production reliability, allowing you to focus on your product's unique features while I handle the complexities of the underlying architecture. RK3566 SOM: Edge Computing & Multimedia Core
Overview:
The RK3566 SOM is a high-performance, 6-layer System-on-Module that integrates a Quad-core SoC, NPU, DRAM, Flash, and PMIC into a compact "Plug-and-Play" computing core. Designed with an Industrial SODIMM interface, it eliminates the risks of secondary reflow soldering inherent in LGA modules, significantly improving factory yield and enabling modular upgrades for AIoT and multimedia applications.
► Skills Used:
● Edge AI Architecture
● High-Speed PCB Design
● DFM & Yield Optimization
● Linux Kernel/APP development(C/C++)
► "High-Performance Core, Low-Cost Carrier":
The architecture is engineered to provide a professional-grade computing heart while simplifying the peripheral development:
● Efficiency Redefined: All GPIO pins are routed to the SODIMM interface, allowing clients to deploy complex AI products using simple 1-4 layer carrier boards, drastically reducing R&D costs and TTM (Time-to-Market).
● Resilient Supply Chain: Pre-configured compatibility for 10+ WiFi modules, DDR4/LPDDR4 DRAM, and EMMC/NAND Flash, ensuring production continuity regardless of component shortages.
● Optimized OS Ecosystem: Supports Linux/Android with kernel-level tuning, achieving a 15-second cold boot and stable performance even on 512MB RAM configurations.
► Key Engineering & Product Features:
● AI Intelligence: Built-in 1T NPU enables edge-side AI capabilities for facial recognition, voice processing, and predictive maintenance.
● Multimedia Excellence: Supports 4K hardware decoding and direct HDMI output, ideal for high-definition visual displays.
● Acoustic Precision: Integrated hardware VAD (Voice Activity Detection) significantly enhances the response speed and accuracy of smart speakers and voice interfaces.
● Production-Ready Integrity: A fully verified "Minimum System" that shifts the complexity away from the factory floor to a pre-tested, swappable module.
► Scalability & Proven Success (Mass Production):
● Industrial Automation (MES): Serving as the high-speed data processing core for Manufacturing Execution Systems.
● Consumer Electronics: Deployed in high-definition digital photo frames and portable retro gaming consoles.
● Developer Ecosystem (GRS Viper SBC): Powering professional-grade Single Board Computers for the global maker and engineering community.
This RK3566 SOM represents the pinnacle of "High-Yield Intelligence." By combining AI power with a modular, audit-friendly manufacturing structure, I help you deliver sophisticated high-end products with the technical certainty of a seasoned architect. RK3326s SOM: Modular "Minimum System" for Rapid Deployment
Overview:
The RK3326s SOM is a highly integrated, 6-layer System-on-Module designed to function as a complete, "plug-and-play" computing core. By utilizing a 260-pin DDR4 SO-DIMM interface, this module eliminates the need for secondary reflow soldering—a common cause of defects in LGA-based modules—while enabling rapid assembly and field-swappability for industrial and consumer applications.
► Skills Used:
● High-Speed Systems Architecture.
● PCBA design (Altium/KiCad)
● Linux Kernel/APP development(C/C++)
● DFM & Production Optimization
● EMI/EMC Engineering
● BOM Optimization
► "One Core, Infinite Carrier Boards":
The modular design is engineered to slash development cycles and R&D costs for new product categories:
● Full GPIO Breakout: All essential I/Os are routed to the SO-DIMM interface, allowing clients to develop simple 1-4 layer carrier boards for specific projects.
● Elastic Material Compatibility: Pre-engineered to support 10+ WiFi modules, DDR3/LPDDR3 DRAM, and EMMC/NAND Flash variants, ensuring a resilient supply chain against component shortages.
● Streamlined Production: Avoids the "Double-Reflow" trap, significantly lowering the barrier for entry for smaller factories and reducing the scrap rate during mass production.
► Key Technical Features:
● Ultra-Fast Boot: Optimized Linux kernel achieving a 18-second cold boot time.
● Memory Efficiency: Stable and fluid operation on configurations as low as 512MB DRAM + 1GB EMMC.
● Ruggedized Layout: Built-in immunity to high-frequency interference, ideal for smart kitchen appliances and industrial environments.
● Dual-OS Support: Native compatibility with both Android and Linux, providing flexibility for diverse UI and logic requirements.
► Scalability & Proven Success (Mass Production):
● Industrial Automation (ESOP): Deployed as the central processing unit for factory-wide Electronic Standard Operating Procedure systems.
● High-End Consumer Tech (LG DUOBO): Trusted as the core compute engine for premium smart devices.
● Smart Kitchen Appliances: Successfully integrated into high-power microwave steam ovens, leveraging its radiation-resistant design.
This SOM represents my commitment to "Zero-Defect Manufacturing." I provide a hardware core that is not only powerful but also audited for production reliability, allowing you to focus on your product's unique features while I handle the complexities of the underlying architecture. Resilient LoRA & WiFi Mesh Solution
Overview:
Marine-Link is a mission-critical, ESP32+LoRA based IoT ecosystem engineered for large-scale offshore aquafarming and high-standard industrial cleanroom management. As the Lead Architect, I developed a dual-mesh infrastructure that prevents mass biological mortality through real-time telemetry and automates high-power industrial equipment to drive energy efficiency.
► Skills Used:
● Systems/Product architecture.
● PCBA design (Altium/KiCad)
● PHP Laravel + Swoole(server backend)
● VUE UI(HTML5/Javascript)
● Android/iOS APP development(Flutter)
► "One Board, Dual Mesh, Multi-Scenario":
A single, high-reliability hardware platform designed to maintain connectivity in the most challenging RF environments:
● Hybrid Mesh Topology: Creates a LoRA mesh for long-range sensor data and a WiFi mesh for localized, high-bandwidth communication.
● Universal PCBA Design: Engineered a single motherboard compatible with both SX1276 and SX1278 LoRA modules, ensuring seamless regional adaptation and supply chain resilience.
● High-Power Actuation: Integrated remote control for high-power BLDC aeration pumps, utilizing smart logic to reduce carbon footprint and electrical waste.
► Key Engineering & Product Features:
● Critical Prevention Logic: Real-time environmental monitoring with predictive alerting to prevent mass fish loss due to water quality fluctuations.
● Deep-Customized HMI: Developed an ARM-based industrial data panel providing localized, real-time visualization of the entire facility grid.
● Cloud-to-Edge Batch Management: Managed via a centralized Web and Mobile (iOS/Android) platform, enabling mass configuration and threshold updates across hundreds of nodes.
● Dual-Purpose Versatility: Originally designed for the harsh conditions of offshore farms, the system's high reliability led to its successful adaptation for High-Standard Cleanroom Management.
● Industrial-Grade Reliability: Engineered for 24/7 operation in high-humidity/high-salinity environments, moving beyond "prototypes" into verified mass production.
► Scalability & Proven Success:
● Mass Production (MP) Ready: This system is currently in its mass-production phase, proving its manufacturability and long-term stability in the field.
● Cross-Industry Impact: Successfully scaled from primary industry (aquaculture) to high-tech manufacturing (cleanrooms), demonstrating a robust and flexible architecture.
This project showcases the ability to architect complex, multi-protocol IoT systems that bridge the gap between harsh outdoor environments and sophisticated cloud management. I specialize in creating production-ready hardware that leverages the Pearl River Delta's supply chain to deliver high-performance industrial solutions. Smart Industrial IoT (IIoT) Nreader: High-Performance RFID/NFC Solution
Overview:
The Nreader is a versatile, ESP32-based RFID/NFC device engineered for identity verification, secure access control, and industrial equipment management. As the Lead Architect, I developed a "One Board, Three Modes" flexible architecture that delivers professional-grade performance while maintaining a total BOM cost of under $10 USD.
► Skills Used:
● Systems Architecture: Cost-optimized hardware/software co-design.
● PCB design (Altium/KiCad)
● Firmware Development(C/C++).
● Embedded WebSocket(C++/HTML5/Javascript).
► "One Board, Three Modes, Two Purposes":
A single hardware platform supporting three core communication modes to adapt to diverse industrial and commercial environments:
● USB Mode: Functions as a standard Serial device for plug-and-play compatibility with all major OSs.
● MQTT Mode (Wi-Fi): Acts as an independent IoT node for cloud-based data collection and centralized management.
● I2C Mode: Operates as a slave module for deep integration into larger industrial control systems or workstations.
► Key Engineering & Product Features:
● Dynamic RFID Encryption: Unlike standard readers, Nreader supports dynamic card encryption, ensuring that cloned or unauthorized cards are rejected, providing bank-level security for industrial access.
● Real-Time WebSocket Interaction: The built-in management interface leverages WebSocket technology to ensure zero-latency synchronization between the device and the browser. Card detection and data operations are reflected in the UI instantly, providing a seamless "Desktop App" experience without any installation.
● App-Free & Cross-Platform: Managed entirely via a standard web browser. No drivers or specialized apps are required, ensuring 100% compatibility with Windows, macOS, Linux, iOS, and Android.
● Versatile Provisioning: Supports AP Mode for direct offline configuration, STA Mode for corporate network integration, and WeChat Airkiss for one-click setup.
● Extreme Cost Control: By leveraging deep firmware-level optimization, I achieved complex industrial functionality on minimal hardware, driving the mass-production cost to under $10 USD.
● Broad Protocol Support: Compatible with ISO14443A, ISO15693, and ISO18092, with full support for APDU commands for high-security credential handling.
► Scalability & Proven Success:
● Industrial Integration: The Nreader has been successfully integrated as the core authentication module in a Mass-Deployed ESOP+MES ecosystem (2023), serving thousands of workstations in high-pressure manufacturing environments.
This project demonstrates my ability to transform traditional, expensive industrial equipment into modern, cost-effective IoT solutions. I specialize in creating high-performance hardware that is production-ready, easy to deploy via WebSockets, and optimized for the Pearl River Delta supply chain. Smart Industrial IoT (IIoT) ESOP & MES Integrated Solution
Overview
This project features a sophisticated Smart Electronic Standard Operating Procedure (ESOP) system developed. As the Lead Architect, I designed a highly optimized, dual-purpose ecosystem that bridges the gap between digital instructions and full-scale MES (Manufacturing Execution System), all while maintaining extreme cost-efficiency.
► Skills used:
● Systems architecture
● PCB design (Altium/KiCad)
● Linux Kernel/APP development(C/C++)
● PHP Laravel + Swoole(server backend)
● VUE UI(HTML5/Javascript)
● WebOS
► Core Technical Architecture & Efficiency：
● Optimized Hardware Stack: The system runs on a cost-effective RK3326 SoC with only 1GB RAM and 8GB eMMC, driving a high-definition 20.1-inch 1080P display.
● Deep Linux Customization: Thanks to specialized system-level optimization, this device consumes only 1/4 of the resources required by a standard Android-based equivalent.
● Performance & Reliability:
● ● Ultra-Fast Boot: Cold boot to operation in just 18 seconds.
● ● Industrial Stability: Engineered for 24/7 stable operation with an ultra-low power footprint of only 20W for the entire unit.
● Extreme Cost Control: The total BOM and manufacturing cost was successfully driven down to under $100 USD per unit.
► Key Engineering & Product Features
● ESOP to MES Evolution: Designed with hardware redundancy, the system can evolve into a full MES environment via OTA (Over-the-Air) updates. By simply adding RFID readers, barcode scanners, and label printers, it gains tracking and reporting capabilities with zero hardware modifications.
● 3D Digital Twin Monitoring: Integrated Three.js to provide real-time 3D visualization of the assembly line status.
● Industrial Connectivity: Features GPIO-controlled Andon lights for alerts, RFID/IC card authentication (via I2C), and digital counters for real-time output harvesting.
► Proven Market Success
● Mass Deployment: This system is not just a prototype; it has been deployed at scale by enterprise clients since 2023, proving its reliability in real-world, high-pressure manufacturing environments.
This portfolio item demonstrates my unique ability to deliver Expert-level results on a Lean-budget. I specialize in creating high-performance Industrial IoT solutions that are scalable, future-proof, and production-ready within the Pearl River Delta supply chain. Smart Dual-OS Interactive Hub (Photo Frame & Retro Gaming)
Overview:
This project showcases a high-end consumer electronics product developed. It is a dual-system device that functions as both a Smart Digital Photo Frame and a Retro Gaming Console. This project demonstrates my ability to lead a product from concept through SoC selection, custom Linux OS development, and cross-platform App integration to final mass production.
► Skills used:
● Systems architecture
● PCB design (Altium/KiCad)
● Linux Kernel/APP development(C/C++)
● PHP Laravel + Swoole(server backend)
● VUE UI(HTML5/Javascript)
● Android/iOS APP development(Flutter)
► Core Technical Architecture:
● High-Performance Hardware: Built on the Rockchip RK3566 SoC with 2GB RAM and 32GB storage, featuring a 10.1-inch 1080P HD touchscreen.
● Custom Dual-OS Implementation:
● ● Smart Frame OS: A deeply optimized Linux-based system using Wayland/Weston and Chromium for the UI layer.
● ● Gaming OS: Ported and optimized the Batocera emulation system to the RK3566 platform, supporting Neo Geo, Sega, Nintendo, and Sony emulators.
● Modern Web Tech Stack: Utilized PHP for backend logic and Vue.js for a responsive frontend, with WebSocket for real-time system-level communication.
► Key Engineering Achievements:
● Immersive 3D UI: Developed a dynamic 3D Earth interface using Three.js, where photos are arranged in a spiral path around the globe for an "Apple-like" interactive experience.
● Media Processing & Optimization: Integrated FFmpeg in the backend for real-time image/video compression and thumbnail generation, ensuring rapid loading and smooth playback of high-definition content.
● Multi-Channel File Management:
● ● Implemented MTP (Media Transfer Protocol) for direct PC connectivity.
● ● Support for external storage expansion via MicroSD and USB (Auto-mount via PHP).
● IoT & Cloud Connectivity:
● ● Mobile App: Developed a cross-platform App using Flutter (Android/iOS) with embedded WebViews.
● ● Seamless Communication: Used MQTT for real-time synchronization between the device, mobile app, and server.
● ● Easy Provisioning: Integrated Airkiss protocol for quick Wi-Fi configuration.
► Manufacturing & Scalability
● OTA (Over-the-Air) Infrastructure: Built a robust server-side management system to provide seamless OTA updates for the OS kernel and App logic, ensuring long-term product evolution.
● Mechanical & Assembly Design: Managed the integration of multiple interfaces (Type-C, USB, MicroSD) and audio modules into a slim, production-ready enclosure.
● Full Lifecycle Management: Provided a complete backend for device binding, multi-user permission sharing, and remote management.
I am not just a coder or a circuit designer—I am a full-stack product architect. Whether you need to build a complex Embedded System, optimize your BOM, or bridge the gap between Hardware and Cloud, I have the real-world experience in the Pearl River Delta supply chain to take your idea to mass production. Project Description:
[The Solution]
I provided a comprehensive Turnkey IoT Solution for high-end kitchen appliances, replacing bloated Android systems with a deeply customized, lightweight Linux architecture. This achieved industrial-grade stability at a fraction of the hardware cost.
[Technical Excellence & Performance]
Industrial-Grade Stability: Recorded 35,040+ hours of continuous uptime without rebooting or lagging—a benchmark that continues to grow.
Extreme Efficiency: Cold boot in 15 seconds and system responsiveness 3x faster than equivalent Android boards.
Significant Cost Reduction: Deep Linux optimization reduced hardware requirements, cutting BOM costs to 1/4 of Android-based alternatives.
Military-Grade Hardware: Engineered the PCBA to withstand extreme heat and upto 15 mW/cm² microwave radiation, far exceeding standard industrial limits.
[Production & Lifecycle Management]
Automated Factory Self-Test: Developed a custom production-line diagnostic suite. Units perform a full automated functional check upon first power-up, significantly reducing manual labor and post-sale defects.
5-Year OTA Evolution: Managed continuous Over-the-Air (OTA) updates for 5+ years, providing seamless bug fixes and feature rollouts to minimize maintenance overhead.
Business Ecosystem: Built a closed-loop model by integrating marketplaces, product recommendations, and cross-device syncing within the UI and Mobile App.
[Value to Clients]
I help clients rapidly implement low-cost IoT edge computing solutions. By combining military-grade hardware reliability with automated production intelligence, I eliminate architectural risks and ensure the lowest possible total cost of ownership.
Skills to Tag: Embedded Linux, IoT Architecture, PCB Design, EMI/EMC Engineering, Manufacturing Automation, Product Lifecycle Management.
Visuals: Use a high-quality photo of the oven's display interface and, if possible, a screenshot of the Automated Self-Test screen to prove the industrial-scale sophistication of the project. 
