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About the Author

Alexandro Sousa

Alexandro Sousa

Software Engineer & Low-Level Systems Enthusiast


Who Am I?

Hello! I'm Alex, a software engineer based in Teresina, Piauí, Brazil. My passion lies in understanding how things actually work, from electron flow in low-level hardware to complex web systems and AI-driven solutions.

I believe that technical knowledge doesn't have to be boring or superficial. This blog (Bit a Bit) was born out of my desire to document my research and explain complex technical concepts in a simple, straightforward way — "uncomplicating technology, bit by bit".


:material-cpu: CHIP-8 Emulator

A fully functional CHIP-8 emulator written in TypeScript and React, designed as an educational resource to study computer architecture in practice.

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:material-security: Bugless

An AI-powered autonomous code review CLI tool. Integrated with Git, it analyzes commit differences to detect security bugs and automatically suggest improvements.

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:material-volume-high: Silent Guard

A smart noise level monitor designed for the BitDogLab (RP2040) board. It features real-time microphone measurements, LED matrix feedback, and buzzer alarms when thresholds are exceeded.

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:material-bluetooth: BLE Server Pico W

A step-by-step tutorial and implementation of a Bluetooth Low Energy (BLE) server on the Raspberry Pi Pico W in C to stream sensor data to mobile devices.

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Certifications & Education

  • Embedded Systems — Softex/IFPI (2024)
  • 5G Certification — Huawei (2023)
  • Advanced Blockchain — FIAP (2022)