Marcio Cunha

Technical Articles

Practical articles, in-depth tutorials, and architectural insights on software engineering, AI, and systems.

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EletrônicaHardware•5 min

Low-Noise Linear Power Supply Design for Precision Analog-to-Digital Converters

Explore practical engineering techniques to design low-noise linear power supplies for precision analog-to-digital converters, eliminating interference and ensuring accurate readings in embedded systems.

HardwareDevOps•5 min

Building and Configuring Low-Power ARM Server Clusters for a Home Lab

Learn how to design, assemble, and configure a server cluster using low-power ARM single-board computers for your home lab. Discover how to combine high energy efficiency, processing density, and distributed architecture without breaking the bank on electricity bills.

IAHardware•4 min

Generative Model Inference Optimization in Edge Devices with NPU Acceleration

Learn how to run generative models on local hardware using neural processing units to ensure low latency and data privacy without relying on cloud servers.

EletrônicaHardware•4 min

Printed Circuit Board Design for Long-Distance Serial Communication Using RS-485

Learn key engineering guidelines for designing printed circuit boards dedicated to long-distance RS-485 networks. Discover how to manage impedances, bus termination, and protection against electrical surges in noisy industrial environments.

HardwareDevOps•4 min

Building High-Resilience Storage Servers with SAS Controllers and ZFS

Learn how to architect highly resilient storage servers by combining SAS controllers in HBA mode with the ZFS file system for ultimate data integrity and uptime.

RedesHardware•6 min

Designing NVMe over Fabrics Storage Systems with RoCE v2 Connectivity in a Homelab

Learn how to design high-performance NVMe over Fabrics storage infrastructure using RoCE v2 in a homelab environment. Explore performance trade-offs, network requirements, and practical configuration to achieve near-PCIe latencies.

RedesHardware•4 min

Performance Analysis of WireGuard Tunnels in Edge Routers with Hardware Crypto Acceleration

Discover how cryptographic hardware acceleration in edge routers directly impacts throughput and latency for WireGuard VPN tunnels in modern corporate networks.

EletrônicaHardware•3 min

EMI Filtering Circuit Design for High-Density Switched-Mode Power Supplies in Edge Servers

Discover practical engineering challenges in designing electromagnetic interference filters for high-density edge server power supplies. Explore noise suppression topologies, high-frequency magnetic components, and rigorous regulatory compliance.

HardwareEletrônica•3 min

Development of Access Controllers with Optical Biometrics and RISC-V

Learn how to design physical security systems using microcontrollers based on the open RISC-V architecture and optical biometric readers. Discover how to efficiently integrate edge image processing and cryptography.

RedesHardware•5 min

Implementation of Dynamic Routing Protocols in Mesh Networks for Remote Device Communication

Explore how mesh networks rely on dynamic routing protocols to keep remote devices connected reliably, even in the face of physical failures and severe interference.