Author

J3

@jaythree

articles: 46
total claps: 359
top claps: 66
avg read: 4.9 min
paywalled: 30
active: 2017-06-17 → 2026-06-27

Wiki topics

🌐 · Web Development · 19 💻 · Programming · 8 LLM · Large Language Models · 6 📟 · Gadgets & IoT · 5 EDU · Education & Learning · 5 🔓 · Open Source · 5 AI · AI · General · 4 🏛️ · Architecture · 3

Top tags

#rspec ·8 #django ·5 #ruby-on-rails ·5 #inteligencia-artificial ·4 #clean-code ·4 #rails-8 ·4 #code-quality ·4 #wsl-2 ·3 #python ·3 #cucumber ·3

TCH

J3 J3 · Jungletronics

Meet IoT Boards: ESP8266 & ESP32

Which are the best? ESPs or RPis or Arduinos Boards? — IoT — Episode #01

Jan 02, 2020 · 14 min read · 66 claps #esp #esp12 #esp32

J3 J3 · Jungletronics

PIC 16 — 7 Awesome MPLABX Projects!

Reviewing C Language Using MPLABX with PIC16F877A #PIC_Series — Episode 0

Jul 24, 2023 · 18 min read · 55 claps #microchip #pic16f877a #mplabx

TCH

J3 J3 · Jungletronics

DRV8825 Driver & Stepper Motor 24BYJ48

Operation & Theory #basicTronics 09

Jun 17, 2017 · 7 min read · 33 claps #arduino #drv8825-driver #steppper-motor

TCH

J3 J3 · Jungletronics

Raspberry Pi Meets AlaMode®

An Arduino compatible board for the Raspberry-Pi — # raspiSerie — Episode #04

Apr 14, 2020 · 3 min read · 26 claps #alamode #ftdi #usbip

J3 J3 · Jungletronics

The Day Nested Loops Finally Clicked for Me

A Visual Journey from for Loops to Matrix Operations — From Simple Loops to Matrix Operations

Jun 09, 2026 · 6 min read · 25 claps paywalled #c #nested-loop #matrix

The Day Nested Loops Finally Clicked for Me

TCH MKT

J3 J3 · Jungletronics

Seu Ubuntu Não Dá Boot? O Erro Estava no Cartão SD!

Como Instalar o Ubuntu 26 Sem Perder Horas com Problemas de UEFI, ISO e Mídia Corrompida

May 30, 2026 · 6 min read · 25 claps paywalled #ubuntu-26 #dell-g3-3590 #linux-tutorial

Seu Ubuntu Não Dá Boot? O Erro Estava no Cartão SD!

HUM AI

J3 J3 · Jungletronics

O Dia em Que Entendi IA Desenhando Montanhas Matemáticas no GeoGebra

Gradiente, Derivada Direcional e IA — Uma Intuição Geométrica com GeoGebra

May 17, 2026 · 5 min read · 25 claps paywalled #deep-learning #inteligencia-artificial #gradient-descent

O Dia em Que Entendi IA Desenhando Montanhas Matemáticas no GeoGebra

HUM TCH

J3 J3 · Jungletronics

Snack Bar Matrix Calculator in Pure C

Learning Matrix Multiplication Through a Real-World Example

Jun 07, 2026 · 4 min read · 25 claps paywalled #c-programming-language #matrix-multiplication #data-structures

HUM AI

J3 J3 · Jungletronics

O AVÔ DO CHATGPT

Do Perceptron ao ChatGPT: A Evolução da IA

May 21, 2026 · 4 min read · 20 claps paywalled #perceptron #inteligencia-artificial #redes-neurais

TCH

J3 J3 · Jungletronics

Mosquitto Meets Raspberry Pi — Part 1

IoT Project Initialization — Join Our Knowledge About Mosquito & Raspberry PI — # raspiSerie — Episode #05

Apr 18, 2020 · 11 min read · 14 claps #alamode #raspberry-pi #arduino-as-isp-programmer

ART SCI

J3 J3 · Jungletronics

8-bit Microcontroller MEMORY

Harvard Architecture — Separate Program & Data Memory Spaces #PIC_Series — Episode 1

Jul 29, 2023 · 6 min read · 11 claps #memory-mapping #harvard-architecture #pic16f877a

HUM AI

J3 J3 · Jungletronics

Most Python Beginners Learn Matrices the Hard Way — Use Pandas Instead

Create, combine, and manipulate matrices effortlessly while building a professional WSL2 + VS Code development setup.

Jun 07, 2026 · 6 min read · 5 claps #python3 #pandas-dataframe #python-data-analysis

Most Python Beginners Learn Matrices the Hard Way — Use Pandas Instead

TCH

J3 J3 · Jungletronics

Templates for Easy PIC18 Coding

How to use the template in mikroC PRO for PIC.

Nov 06, 2019 · 3 min read · 5 claps #pic18 #easypicv8 #mikroc-pro-for-pic

AI TCH

J3 J3 · Jungletronics

Windows 11 + WSL2 (Ubuntu 24) Setup Guide for Python, Claude Code, Codex CLI, and VS Code

Introduction

Jun 14, 2026 · 2 min read · 5 claps paywalled #wsl-2 #python #vscode

Windows 11 + WSL2 (Ubuntu 24) Setup Guide for Python, Claude Code, Codex CLI, and VS Code

J3 J3 · Jungletronics

🪝Git Hooks Made Simple

Automate Your Workflow with Pre-Commit and Post-Push Hooks

Nov 08, 2025 · 2 min read · 5 claps #git-hooks #git-automation #dev-workflow

SPT ART TCH AI

J3 J3 · Jungletronics

📦 Drag & Drop Kanban with Rails 8

Build a Trello-Style Board Using Stimulus, SortableJS, and Tailwind CSS

May 27, 2025 · 9 min read · 3 claps #kanban-board #drag-and-drop-interface #rails-8

SCI SPT TCH AI

J3 J3 · Jungletronics

Ubuntu Running Slower? This 5-Minute Cleanup Might Surprise You

Check fragmentation, reclaim disk space, and remove unnecessary packages with just a few commands.

Jun 21, 2026 · 1 min read · 3 claps paywalled #ubuntu #sysadmin #devops

Ubuntu Running Slower? This 5-Minute Cleanup Might Surprise You

TCH

J3 J3 · Jungletronics

Rails + RSpec + Capybara + Devise

Refactoring the Scaffold Tests for a Stronger, Smarter Suite — #Episode 2

Nov 24, 2025 · 6 min read · 2 claps paywalled #railstesting #rspec #capybara

MDA TCH

J3 J3 · Jungletronics

MUSIC ALBUM_V2.C

This is a Deque in C — Algorithm studies - #CSeries - Episode#01

Nov 26, 2021 · 5 min read · 2 claps #c-language #simulate-a-playlist #fopen

TCH

J3 J3 · Jungletronics

Rails + RSpec + Capybara + Devise

+ Solargraph Setup (working alias br) — #Episode 1

Nov 24, 2025 · 4 min read · 2 claps paywalled #rails-8 #rspec #capybara

J3 J3 · Jungletronics

🪝 Git’s pre-commit & commit-msg Hooks

From Zero to Your First Hook — The Essential Starting Point

Nov 10, 2025 · 8 min read · 1 claps #git-hooks #git-automation #dev-workflow

DSN HUM ECO

J3 J3 · Jungletronics

Static vs. Dynamic Code Analysis: How RuboCop Reads Ruby’s Mind

Explore the key differences between static and dynamic analysis — and discover how RuboCop inspects your code’s Abstract Syntax Tree (AST)…

Nov 02, 2025 · 6 min read · 1 claps #static-code-analysis #dynamic-code-analysis #rubocop

Static vs. Dynamic Code Analysis: How RuboCop Reads Ruby’s Mind

MKT TCH

J3 J3 · Jungletronics

Cucumber + RSpec: Testes que Falam e Testes que Garantem

Da especificação ao teste automatizado sem fricção — Episódio 𝟙

Nov 30, 2025 · 13 min read · 0 claps paywalled #bdd #cucumber #rspec

Cucumber + RSpec: Testes que Falam e Testes que Garantem

TCH

J3 J3 · Jungletronics

Cucumber + RSpec: Tests That Speak and Tests That Guarantee

From specification to frictionless automated testing

Dec 02, 2025 · 11 min read · 0 claps paywalled #rspec #cucumber #bdd

Cucumber + RSpec: Tests That Speak and Tests That Guarantee

TCH

J3 J3 · Jungletronics

Refatorando Filtros para o Model em Rails

Aplicando SRP (Single Responsibility Principle) na Exibição de Tarefas Concluídas — Episodio 𝟚

Dec 03, 2025 · 7 min read · 0 claps paywalled #refactoring #clean-code #rp