Technical Articles

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

All categories Arquitetura Automação Backend Carreira DevOps Eletrônica Engenharia Frontend Hardware IA Negócios Produtividade Redes

ProdutividadeAutomação•6 min

How to create Excel macros with VBA for automation

Learn the practical step-by-step guide to creating automated macros in Excel using basic VBA, eliminating repetitive tasks and manual errors.

HardwareDevOps•4 min

How to Clone an Old HDD to NVMe SSD Without Reinstalling

Learn the safe step-by-step guide to cloning your operating system from a mechanical hard drive to a fast NVMe SSD without data loss.

EletrônicaHardware•3 min

How to test a burnt optocoupler with a multimeter

Learn the practical step-by-step guide to test optocouplers on electronic circuit boards using only a digital multimeter at your workbench.

Produtividade•3 min

How to convert scanned PDF to editable text in Word

Need to edit a scanned document without installing bulky software? Learn how to use Microsoft Word to extract text from scanned PDFs efficiently.

HardwareEletrônica•5 min

Computer won't boot and beeps? How to clean RAM contacts

Learn the safe step-by-step procedure to resolve PC freezing and startup beeps by cleaning RAM memory contacts with an eraser and isopropyl alcohol.

EletrônicaHardware•5 min

How to test Zener diodes on a circuit board with multimeter

Learn the practical step-by-step guide to test Zener diodes directly on a printed circuit board using the semiconductor scale of a digital multimeter.

IABackend•5 min

How to Implement Secure LLM Function Calling with Guardrails

Learn how to protect AI tool calls by validating JSON schemas, sanitizing parameters, and preventing prompt injection attacks in enterprise environments.

IAEngenharia•4 min

How to create persistent vector memory for AI agents

Practical engineering guide on structuring vector databases, efficient document chunking, and contextual retrieval for autonomous agents.

IAAutomação•2 min

Siri on Apple TV 4K: How AI Changes Your Smart Home

Learn how the new Siri on Apple TV 4K uses local processing and the Secure Enclave to transform smart home control with enhanced security and low latency.

IABackend•3 min

Anthropic API down? How to handle outages and system failures

Learn what to do when the Anthropic API goes down. Discover contingency strategies, multi-provider LLM fallbacks, and resilient production architectures.