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

EletrônicaAutomação•3 min

How to design industrial electrical panels without errors

Learn best practices for terminal organization, cable sizing, signal separation, and electromagnetic interference prevention.

HardwareAutomação•4 min

How to create energy dashboards in Grafana with ESP32

Learn how to monitor your home electrical consumption using an ESP32, non-invasive SCT-013 sensors, the MQTT protocol, and beautiful Grafana charts.

AutomaçãoEngenharia•3 min

How to automate emergency stops in Siemens PLCs

Learn how to implement redundant safety circuits and validate safety stop function blocks in Siemens PLCs to protect operators and machinery.

RedesAutomação•3 min

How to unify industrial sensors via MQTT and TLS

Learn how to secure industrial IoT networks by unifying sensor monitoring with the MQTT protocol and TLS encryption to ensure data integrity and safety.

AutomaçãoRedes•4 min

How to Integrate Modbus TCP Sensors with Grafana Using Node-RED

Learn step by step how to read industrial PLC data using Modbus TCP, publish via MQTT with Node-RED, and display real-time dashboards in Grafana.

AutomaçãoProdutividade•4 min

How to capture notes and tasks via CLI with Bash and Python

Learn how to build a zero-mouse workflow using Bash and Python scripts integrated with Markdown files to capture notes and tasks straight from your terminal.

AutomaçãoEngenharia•4 min

How to configure safety relays and emergency stops in PLCs

Learn how to configure redundant safety relays and interlock logic to ensure reliable emergency stops in industrial PLCs.

HardwareAutomação•6 min

How to Read VRM Temperatures in Linux Using Python and I2C

Learn how to implement Python scripts for direct hardware monitoring chip reading via the motherboard I2C bus.

AutomaçãoEletrônica•5 min

How to wire category 4 two-hand safety relays

Learn how to design and implement category 4 two-hand control and emergency stop circuits under ISO 13849-1 to protect industrial machine operators.

RedesAutomação•4 min

How to design secure industrial networks with fiber and PRP

Learn how to build a high availability architecture for industrial automation using fiber optic rings, managed switches, and protocols like RSTP and PRP.