Beginner lesson 7 of 17 · 20 min Pro
Latch and unlatch coils
Set a retentive output that stays on by itself, and clear it with a separate unlatch — and see how that differs from a seal-in.
The starter project is free, with no account. The video is free with an account. The lesson, quiz and checked practical are Pro.
What you build.
A latch coil sets an output that stays on with nothing holding it, and an unlatch coil clears it. How that differs from a seal-in circuit.
In this lesson.
Video
A short walkthrough. Free with an account.
Lesson
Short steps, one idea each.
Quiz
A short quiz, with the reason behind every answer.
Hands-on
Build it in FORGE. Check my work tells you what to fix.