Measurements on the Kind of Mirror:
The most crucial component required to create a smart mirror would be a two-way mirror. Also identified as a semi-transparent mirror, the two-way mirror enables light to pass through from any side. These mirrors, frequently used in interrogation rooms, have now marking their place in today’s smart homes. While the other side of the mirror that will be taking up a substantial portion of your budget, it’s importance is non-negotiable for the desired end result.
There are a few factors to consider when purchasing a two-way mirror such as size, thickness, and transmission. The size should fit perfectly on the display screen of your chosen device. As for thickness, a 1/4 inch is the standard size, but you could work with a thinner one if required. Furthermore, for smart mirrors, a two-way mirror with a high level of light transmission is recommended. This is because the more light the mirror allows to pass through, the brighter the display. An acrylic two-way mirror would be the most affordable option, costing roughly around $75 for a 24″ X 36″ size.
Selection of the Display:
After the mirror, the next pivotal component to consider is the display. The type of display you decide on will dictate the overall look, feel, and operation of your smart mirror. Needless to say, the display will have to be a flat-screen one, such as a monitor or an old TV, with an HDMI connection. Make sure the device supports always-on mode, so it doesn’t shut off automatically. You may find good deals on used monitors, for under $50, in local yard sales, pawnshops, or online marketplaces like eBay or Craigslist.
Application of Raspberry Pi:
A Raspberry Pi acts as the heart of the smart mirror by driving the whole operation. Raspberry Pi is a small and affordable computer that you can use to learn programming. Featuring in multiple versions, the most prominent one being Raspberry Pi 3 Model B+. Although any version would suffice, this particular model, with its integrated wireless and Bluetooth, simplifies the setup process. Other options from the series, such as Raspberry Pi Zero W, are also suitable, which cost around $10.
Laconic Details on the Software:
The software will control how your smart mirror looks and what information it displays. Many free and membership-based programs are available, MagicMirror² being one of the popular choices for those who employ Raspberry Pi. MagicMirror² is an open-source modular smart mirror platform that allows you to customize your mirror with a third-party plugin.
For those using Android devices, apps like Mirror Mirror – Smart Mirror Interface (Free) or Reflect (Freemium) could be used. An old smartphone or a Kindle Fire Tablet, that have an always-on mode, can also work perfectly fine.
Installing the Necessary Cables:
For the power supply and connectivity, you’ll need a few cables. A Micro USB Power Supply ($7-$10) for Raspberry Pi, an HDMI Cable ($7-$10) to connect Raspberry Pi to the display screen, and a Wi-Fi dongle ($10-$20) for internet connectivity, unless your chosen Raspberry Pi Model has built-in Wi-Fi.
Opting for the Proper Frames:
The correct choice of frames for your smart mirror device not only adds to the aesthetic appeal but also performs the function of housing your intelligent assembly effectively. The size of the frame will depend on the dimensions of your mirror and display device. Materials for the frame can be anything from wood to metal or plastic; the choice primarily depends on personal preferences and existing home décor. You can either buy a pre-made one or DIY one for under $20.
Force-closing on the Power Button:
The addition of a power button to your smart mirror will allow you to shut off the display easily. If your monitor doesn’t have an easily accessible power button, you can install one using a micro-USB cable with a built-in On/Off switch for around $5.
Tying Up with Peripherals:
A Keyboard and a mouse are essential peripherals for initial configuration and occasional maintenance. A USB, or Bluetooth keyboard/mouse setup, can cost up to $20. Alternatively, you can use apps such as ‘VNC Viewer’ that lets you control Raspberry Pi from your phone or computer remotely.
To summarize, building an affordable smart mirror translates to astute investment in acquisition of the correct high-quality components. While the overall cost can vary greatly depending on the chosen parts, judicious selection can help you keep the budget around $150-$200, thereby enabling you to have your very own smart mirror at an economical price.
