The sun sets depressingly early during certain times of the year, and this can have a big effect on your mood. What if you could control when the sun rises and sets with a fake natural light window? We’ll show you how to tackle this DIY project.
Why a DIY Natural Light Window?
If you live in a location where there are extended periods of darkness, you know how important natural light can be. Seasonal affective disorder (SAD) is very common during these times of the year, and lack of sunlight is part of the cause.
There are plenty of products designed to help with this problem. However, if you want window-sized light, you’ll probably have to spend several hundred dollars. We wanted to add some extra light to our dim basement office and decided to go the DIY route.
We’ll show you how to make a faux window with natural light that changes to match the sun, all for less than $100.
What You’ll Need
Before we go any further, just a heads up that we’ll be using SmartThings for this project. There are a lot of smart home systems out there, so it’s hard to write a guide that’ll work for everyone.
If you want to get started with SmartThings, the first step is to buy a Hub, to which all your subsequent smart devices will connect. SmartThings supports many popular smart home brands. Once connected to the Hub, devices can be controlled through the SmartThings app.
If you don’t have a smart home setup, you can get similar results with a cheap “dumb” strip light. The only thing you’ll miss is the dynamic color-temperature shifting.
We’ll be using ZigBee Sylvania Smart LED Strip Lights. They’re full red, green, blue, and white (RGBW) lights and the color temperature can go from 2,700K to 6,500K. If those aren’t in stock, you can try this similar set from Sengled.
Next, you’ll need a fake window. If you’re DIY-inclined, you can build one for pretty cheap (it only cost us around $30). It’s essentially just a box with a light diffuser.
We used a single 1 x 4, some 1/4-inch plywood, and an acrylic light panel. We made a small channel for the light panel to slide into, and you can either nail the plywood back onto it or inset it. We also recommend painting the inside white for maximum light reflection.
Alternatively, you can buy a shadow box that fits the length of your light strip. Our lights are 72-inches long, so the 18- x 18-inch or 12- x 24-inch shadow box would be perfect. You can tape some printer or parchment paper to the glass or acrylic to create a light diffuser.
There’s one bit of DIY you’ll have to do regardless of how you get your window, and that’s drilling a small hole in one corner so you can feed the power cord into the box.
Finally, we’ll also show you how to set up a circadian rhythm automation with SmartThings. This will make the light change color temperature throughout the day just like the sun. You can even set your own sunrise and sunset times.
Assembling the Fake Window
We’ll begin by assembling the window. Basically, you just have to attach the light strip to the inside of the box. First, figure out where the end of the cord will be, and then drill a small hole for the power cord.
Next, remove the paper from the adhesive backing and stick the light strip around the inside of the frame. Start with the end that will connect to the power source and make sure it’s aligned with the hole.
If you bought a shadow box, use some clear tape to attach white printer, parchment, or wax paper to the glass or acrylic. This will diffuse the light and make it appear brighter and more even.
That’s really all there is to the physical assembly. You can stop here if you want and still have a perfectly serviceable fake window.
However, if you want the color temperature to more closely mimic the sun, there’s one more step.
Set Up the Circadian Daylight SmartApp
SmartThings has a large library of community SmartApps that can do some really cool things. We’ll be using one called “Circadian Daylight,” which automatically adjusts the color temperature of your lights to match the sun in any given location.
If you’ve never used a SmartApp with SmartThings before, the process might seem daunting at first, but it’s actually pretty easy. We’ll walk you through it.
The process begins in the SmartThings IDE, which is the developer back end. Just go to https://account.smartthings.com/ in your web browser and sign in.
Next, click “My SmartApps” at the top.
Click “New SmartApp.”
On the New SmartApp page, click “From Code.”
To install the first part of the SmartApp, copy the code on this page, paste it in the text box under the “From Code” tab, and then click “Create.”
Click “Save” after the SmartApp is created.
Click “Publish” and select “For Me.”
Go back to “My SmartApps” and click “New SmartApp” again.
Switch to “From Code.”
Now, we’ll install the second part of the SmartApp. Copy all the code from this page, paste it in the text box, and then click “Create.”
Click “Save” after the SmartApp is created, but this one doesn’t need to be published.
You’ll then see two Circadian Daylight SmartApps on your account.
Tap the hamburger menu on the right, and then tap “SmartApps.”
Tap the plus sign (+).
Scroll down to the “Custom” section and tap “Circadian Daylight Coordinator.”
Tap “Next” to set it up.
The first thing you have to do is choose the minimum and maximum color temperatures. For reference, sunrise and sunset are around 2,700K, while at noon, it’s around 6,000K. Check your light strip specifications to see how close you can get to these numbers. When you’re done, tap “Next.”
Now, you can decide if you want the lights to match the sun in your location, or if you want to set their sunrise and sunset times manually.
For the former, type your zip code, and then choose an offset for the sunrise and sunset times.
To set sunrise and sunset times manually, scroll down and select a time for each. This is particularly nice for those times of year when the sun sets early. When you’re finished, tap “Next.”
If you want to receive notifications when there’s an update for the SmartApp, toggle-On the “Update Notifications” option, and then tap “Done.”
You’ve now configured how the SmartApp will work. The next step is to tell it which lights to control. Tap “Circadian Daylight Coordinator” in the “SmartApps” section.
Select “New Circadian Daylight Setup.”
Tap the type of lights you’re using in your fake window.
Next, select the radio button next to the specific light you want to use, and then tap “Done.”
Tap “Next” to proceed.
You can toggle-On the “Dynamic Brightness” option if you want the light to dim to match natural light. Type values for the minimum and maximum brightness, and then tap “Next.”
You can now decide if you want to set any “Sleep Settings.” If you do, just select the mode(s) for which it should run, how warm or cool the color temperature should be, and then select a brightness level. Tap “Next” when you’re done.
Finally, select the mode in which you want the SmartApp to be active, or you can disable it when certain switches are on. Click “Next” to complete the setup.
Type a name for your window light, and then tap “Done.”
To save what you just did, you’ll have to go through the “Circadian Daylight Coordinator” settings one more time; just tap “Next” to skip through them all.
You’ll return to the “SmartApps” screen when finished. Keep in mind the light will change every 15 minutes, beginning at the top of the hour, so you might not notice it changing immediately.
Your DIY version might not look as fancy as some of the expensive, premade faux windows, but this is a great alternative for the price. It also offers a lot more flexibility because you can make your window as big or small as you want.
Even if you don’t have SmartThings, hopefully, this guide has inspired you to try something similar with whatever setup you’re using and add some extra light to your space.
This post was written by Joe Fedewa and was first posted to www.howtogeek.com
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