How Drawing Tablet EMR Pen technology works

Have you ever wondered how EMR (Electromagnetic Resonance) Pens work in drawing tablets like those made by Wacom? This video will walk you through the basics of how tablets and pens work together use EMR technology to provide battery-less pens that can sense position, tilt, and pressure.

UPDATE COMING! I will be creating an updated version of this video in 2023

ERRATA, REFERENCES, AND OTHER NOTES: https://docs.thesevenpens.com/drawtab...

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Table of Contents

00:00 Introduction
00:59 Start with an Incandescent lightbulb
01:25 Delivering power without a wire or battery
01:58 Inductors
03:10 The LC Circuit
05:53 Building an graphics tablet step-by-step
09:07 Detecting Pen Position
13:58 Detecting Pen Tilt
13:58 The LC Circuit is the simplest kind of EMR pen
18:38 Detecting Pen Pressure
21:03 Detecting Pen Buttons
22:32 Recap
23:25 End and Thank You