# Mystery Box: Shutterglass Chamber

## Overview

https://youtu.be/b9HwsPiEbyA

![](https://cdn-learn.adafruit.com/assets/assets/000/040/512/medium800/sensors_shutter_IMG_0571_2k.jpg?1490986037)

![](https://cdn-learn.adafruit.com/assets/assets/000/040/511/medium800/sensors_shutter_IMG_0570_2k_b.jpg?1490986014)

When I saw the new LCD glass appear in the Adafruit shop, I thought it would be a great item to include in my next mystery box prop!

LCD shutter glass panels are seemingly magical when used to smoothly fade from opaque to transparent, revealing secret objects hidden inside this box's shadowbox chambers.

This guide will show you how to build the Shutterglass Chamber, a mystery box prop built for an interactive mystery performance.

You can also use this guide as a generalized technique for fading LCD panels up and down in any project you can imagine.

## Parts

To build the circuit you'll need:

- [LCD black out panel](https://www.adafruit.com/products/3330)&nbsp;x 3
- [Adafruit Trinket](https://www.adafruit.com/products/1501) 5V microcontroller
- [Micro Lipo USB charger](https://www.adafruit.com/products/1904) for LiPoly batteries
- [LiPoly 3.7v battery](https://www.adafruit.com/products/1317) (any smaller sized one that will fit your box, such as 150mAh to 350mAh)
- [SPST slide switch](https://www.adafruit.com/products/805)
- [Hall effect sensor](https://www.adafruit.com/products/158)
- [Magnet](https://www.adafruit.com/product/9)
- [10k resistor](https://www.adafruit.com/products/2784)
- [Stranded wire](https://www.adafruit.com/products/2051) in various colors
- [Heat shrink tubing](https://www.adafruit.com/products/1649)

## Tools

- Soldering iron and solder
- Wire cutters
- Wire strippers

For the cutting&nbsp;windows into the box lid, there are a number of tools you can use, such drill and coping saw, scroll saw, knife, CNC mill, laser cutter, box cutter and straight edge, and so on. Same is true for the shadow box compartments.

## Materials

- Box of rougly&nbsp;these dimensions: 22cm W x 13cm D x 5cm H
- Gaffer's tape or hot glue and a hot glue gun
- Black cardstock, cardboard, or plastic for the shadow box compartments

- [Next Page](https://learn.adafruit.com/shutterglass-chamber/assemble-the-box.md)

## Featured Products

### Large Liquid Crystal Light Valve - Controllable Shutter Glass

[Large Liquid Crystal Light Valve - Controllable Shutter Glass](https://www.adafruit.com/product/3330)
What do you get when you power a layer of liquid crystal material sandwiched between two sheets of glass? A **&nbsp;Liquid Crystal Light Valve** (a.k.a a LCD Controllable Black-out Panel)!&nbsp;They're&nbsp;often used for electric welding helmets&nbsp;because...

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### Adafruit Trinket - Mini Microcontroller - 5V Logic

[Adafruit Trinket - Mini Microcontroller - 5V Logic](https://www.adafruit.com/product/1501)
 **Deprecation Warning: The Trinket bit-bang USB technique it uses doesn't work as well as it did in 2014, many modern computers won't work well. So while we still carry the Trinket so that people can maintain some older projects, we no longer recommend it.** <a...></a...>

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### Adafruit Micro-Lipo Charger for LiPo/LiIon Batt w/MicroUSB Jack

[Adafruit Micro-Lipo Charger for LiPo/LiIon Batt w/MicroUSB Jack](https://www.adafruit.com/product/1904)
Oh so handy, this little lipo charger is so small and easy to use you can keep it on your desk or mount it easily into any project! Simply plug it via any MicroUSB cable into a USB port and a 3.7V/4.2V lithium polymer or lithium ion rechargeable battery into the JST plug on the other end....

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### Lithium Ion Polymer Battery - 3.7V 350mAh

[Lithium Ion Polymer Battery - 3.7V 350mAh](https://www.adafruit.com/product/2750)
Lithium-ion polymer (also known as 'lipo' or 'lipoly') batteries are thin, light, and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 350mAh for a total of about 1.3 Wh. If you need a larger (or smaller!) battery, <a...></a...>

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### Breadboard-friendly SPDT Slide Switch

[Breadboard-friendly SPDT Slide Switch](https://www.adafruit.com/product/805)
These nice switches are perfect for use with breadboard and perfboard projects. They have 0.1" spacing and snap in nicely into a solderless breadboard. They're easy to switch no matter what size fingers you have, but not so easy that they'll get flipped by accident. Work great as...

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### Hall effect sensor

[Hall effect sensor](https://www.adafruit.com/product/158)
Hall effect sensors detect whether a magnet is near. Useful for non-contact/waterproof type switches, position sensors, rotary/shaft encoders. I tried dozens of different hall effect sensors to see which one would work best for the SpokePOV kit (to determine the wheel location) and this one...

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### Through-Hole Resistors - 10K ohm 5% 1/4W - Pack of 25

[Through-Hole Resistors - 10K ohm 5% 1/4W - Pack of 25](https://www.adafruit.com/product/2784)
ΩMG! You're not going to be able to resist these handy resistor packs!&nbsp;Well, axially, they&nbsp;do all of the resisting for you!

This is a **25 Pack of 10K Ω Resistors.** More specifically, they are **carbon film** , through-hole...

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### Silicone Cover Stranded-Core Wire - 30AWG in Various Colors

[Silicone Cover Stranded-Core Wire - 30AWG in Various Colors](https://www.adafruit.com/product/2051)
Silicone-sheathing wire is super-flexible and soft, and its also strong! Able to handle up to 200°C and up to 600V, it will do when PVC covered wire wimps out. We like this wire for being extremely supple and flexible, so it is great for wearables or projects where the wire-harness has to...

Out of Stock
[Buy Now](https://www.adafruit.com/product/2051)
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