Creating a Voice-activated Smart Mirror: Step-by-Step Guide
Voice-activated smart mirrors are ingeniously interactive devices that add a layer of futuristic touch to your daily living. Most impressively, assembling your own doesn’t require a professional’s touch or an engineering degree. With a bunch of essential items and a do-it-yourself (DIY) experimental spirit, you can create your impressive Smart Mirror capable of performing voice-activated tasks. This process covers purchasing hardware, programming software, and assembly.
1. Gathering the Necessary Hardware
The first step of creating a voice-activated smart mirror involves gathering essential hardware. The required equipment includes a two-way mirror often referred to as the spy mirror, an old monitor or a Raspberry Pi touch screen, a Raspberry Pi 4, and its power supply. You would also need a micro SD card, a keyboard, a mouse, and Internet access to download necessary software, a monitor cable (HDMI to DVI/VGA) and a frame for your mirror.
2. Selecting the Right Software
The choice of software can be directly linked to the mirror’s responsiveness, response time, and overall functionality. Your Raspberry Pi will primarily use MagicMirror², a highly customizable, open-source platform that enables smart mirror functions. For the voice activation feature, the Google Assistant SDK for the Raspberry Pi will be required.
3. Setting up Raspberry Pi
Before diving into setting up MagicMirror², it’s crucial that Raspberry Pi is correctly installed and configured. To set up your Raspberry Pi 4, you need the latest version of the Raspberry Pi OS, which can be downloaded from their official website. Once downloaded, use a software called BalenaEtcher to burn the image into the SD card. Insert the SD card into your Raspberry Pi, power it up, and follow on-screen instructions to complete the setup.
4. Installing MagicMirror²
Once your Raspberry Pi is ready, input the MagicMirror²’s installation command in the terminal. This magic mirror software will download and install itself automatically, providing a base platform for your smart mirror.
5. Configuring MagicMirror²
This part calls for tailoring the software to your preferences. You can do this by modifying the config.js file located at ~/MagicMirror/config/. This configuration allows you to add modules to your mirror, such as calendars, weather information, and compliments. Whether voice-activated or not, adding these features will give your smart mirror its ‘smart’ tag, literally.
6. Installing Google Assistant SDK
Now that your MagicMirror² is configured, echo your own version of ‘Mirror on the wall’ by installing the Google Assistant SDK module. The installation process includes setting up the Google Assistant API, configuring the OAuth consent screen, setting up an activity control, generating credential files, and finally, installing the Google Assistant Module.
7. Integrating Google Assistant SDK with MagicMirror²
Once Google Assistant SDK is installed, integrate it with the MagicMirror² framework. This involves editing the assistant’s module in config.js file of MagicMirror². Importantly, ensure that the microphone and speaker correctly link with the Google Assistant to allow flawless voice control.
8. Assembling the Smart Mirror
With all software components in place, it’s time to proceed to the assembly part. Begin by disassembling the monitor and removing its plastic frame, leaving bare the LCD panel and its circuit board. To create a mirror view, place the cut-to-size two-way mirror onto the monitor. This will allow light from the monitor to go through the glass, enabling you to see both your reflection and the information from the monitor.
The next step is setting up the Raspberry Pi. Connect it to the monitor via the HDMI-to-DVI or HDMI-to-VGA cable, depending on your monitor’s compatibility. Complete the mirror assembly by placing the monitor/mirror combo into a frame. You can use an old picture frame, or a customized wooden frame based on the monitor size.
9. Testing The Smart Mirror
Before mounting your smart mirror on the wall, plug it in, turn it on and give it some commands to see if everything works as planned. Commands like “Hey Google, what’s the weather today?” or “Ok Google, remind me to…” would show if voice-activation is working properly.
10. Preferred Location
Finally, choose an optimal location to place the smart mirror, where it won’t suffer from direct sunlight that could impede visibility. You can mount it on the wall, set it on a table, or place it in your bathroom; the flexibility of placement is one of the selling points of a smart mirror.
Creating a voice-activated smart mirror needs some tech-savviness, a DIY mindset, and a few essential components. Following these guided steps provides you an innovative device that streamline aspects of your daily life while offering your living space a dash of modern tech-appeal.
