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Achievements

Achievement: Pull SharkAchievement: Pair Extraordinaire

Achievements

Achievement: Pull SharkAchievement: Pair Extraordinaire

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EstudiosVizcaino/README.md
César Vizcaíno — Programmer · IoT Maker · IT Technician

Portfolio LinkedIn Email

About me

I'm César Vizcaíno, a programmer, IoT maker and IT technician based in Madrid. I enjoy taking ideas all the way to working devices: writing C/C++ firmware for ESP32 and Arduino, designing PCBs in KiCad, modelling and 3D-printing enclosures, and repairing electronics down to the component level — from smartphones to vending machines.

  • 🎓 Software Engineering student at 42 Madrid (C · C++ · Python · Java · Bash)
  • 🔌 End-to-end hardware projects: firmware, PCBs, embedded systems and 3D-printed enclosures
  • 🧑‍🏫 IT trainer — workshops on cybersecurity, IoT and 3D printing
  • 🛩️ Certified technical inspections drone operator (STS)
  • 🎻 Outside of tech: orchestra and theatre

⟡ Featured projects

Project Language Description
Minishell C A small bash-like shell built from scratch: parsing, pipes, redirections and signal handling
philo C The dining philosophers problem — threads, mutexes and deadlock prevention
minitalk C Client/server data exchange implemented exclusively with UNIX signals
GNL C get_next_line — reading any file descriptor one line at a time with a single static buffer
Printf C A reimplementation of printf
Portfolio JS My interactive portfolio — WebGL, generative audio and a live GitHub feed

Hardware work — a smart building intercom, a BLE sheet-music page-turner pedal, a self-hosted DNS server — is showcased on my portfolio →


⟡ Tech stack

C C++ Java Python Bash Git

ESP32 Arduino KiCad Raspberry Pi 3D Printing Onshape Shapr3D Bambu Studio

Linux macOS Windows VirtualBox Office 365

BLE LoRa REST APIs Claude


⟡ GitHub activity

GitHub activity — public repos, top language, stars, followers and language breakdown Contribution streak

CÉSAR VIZCAÍNO · MADRID, SPAIN · estudiosvizcaino.github.io/portfolio

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  1. Minishell Minishell Public

    Minishell is a simple UNIX shell implemented in C as part of the 42 School curriculum. The goal of the project is to recreate the core functionality of a POSIX-compliant shell — similar to Bash — f…

    C

  2. cub3d cub3d Public

    cub3D is a first-person raycasting project inspired by Wolfenstein 3D. The goal of the project is to create a dynamic 3D view inside a maze using ray-casting principles. The program reads a .cub sc…

    C

  3. minitalk minitalk Public

    Minitalk is a project from the 42 coding school that showcases a fundamental aspect of Unix programming: Inter-Process Communication (IPC). The challenge is to create a client-server program that c…

    C

  4. philo philo Public

    Dining Philosophers simulated in C: one pthread per philosopher, one mutex per fork, and a monitor thread that detects starvation within milliseconds. Deadlock-free through parity-based lock orderi…

    C

  5. push_swap push_swap Public

    42 school project: sorting a stack with only 11 stack operations, in as few moves as possible. Averages ~4,889 moves for 500 numbers.

    C

  6. push_swap_tester push_swap_tester Public

    A comprehensive Bash script designed to rigorously test the push_swap project from 42 School. This tester automates the process of generating numbers, running push_swap, checking the validity of th…

    Shell