Pinlight: I was too lazy to read a 40-page datasheet, so I built an interactive electronics tutor

Description and use

<p><em>This is a submission for the <a href="https://dev.to/challenges/hacktoberfest-week3-2026-10-19">Hacktoberfest Open-Source AI Challenge Week 3: Slow and Steady</a></em></p> <h2> What I Built </h2> <p>“Connect GPIO17 to the LED.”</p> <p>That sounds simple until you ask: which physical pin is GPIO17, where does ground go, and why is there a resistor in the diagram?</p> <p>I wanted those answers beside the board, with one small thing to do next.</p> <p><strong>Pinlight is an interactive learning desk for electronics.</strong> It brings a 3D board, guided activities, a source-linked AI tutor

Problem

<p><em>This is a submission for the <a href="https://dev.to/challenges/hacktoberfest-week3-2026-10-19">Hacktoberfest Open-Source AI Challenge Week 3: Slow and Steady</a></em></p> <h2> What I Built </h2> <p>“Connect GPIO17 to the LED.”</p> <p>That sounds simple until you ask: which physical pin is GPIO17, where does ground go, and why is there a resistor in the diagram?</p> <p>I wanted those answers beside the board, with one small thing to do next.</p> <p><strong>Pinlight is an interactive learning desk for electronics.</strong> It brings a 3D board, guided activities, a source-linked AI tutor

Outcome

<p><em>This is a submission for the <a href="https://dev.to/challenges/hacktoberfest-week3-2026-10-19">Hacktoberfest Open-Source AI Challenge Week 3: Slow and Steady</a></em></p> <h2> What I Built </h2> <p>“Connect GPIO17 to the LED.”</p> <p>That sounds simple until you ask: which physical pin is GPIO17, where does ground go, and why is there a resistor in the diagram?</p> <p>I wanted those answers beside the board, with one small thing to do next.</p> <p><strong>Pinlight is an interactive learning desk for electronics.</strong> It brings a 3D board, guided activities, a source-linked AI tutor

Evidence

Pinlight: I was too lazy to read a 40-page datasheet, so I built an interactive electronics tutor

Source