I’ve bought a couple DFRobot mmWave sensors and intend to use that to trigger the screen of my Magic Mirror.

But the only wire schemas I can find are for the ESPHome or an Arduino, while I would like to wire it directly to the GPIO ports of my Raspberry Pi 4 that’s running Magic Mirror.

I’ve looked at the MMM-Screen-Powersave-Notification that uses a HC-SR501 PIR sensor, but I couldn’t work out how to make that work with an mmWave sensor. The PIR sensor uses a single wire to trigger the screen, while the mmWave sensor also uses a serial connection.

Anybody have any suggestions how to get started? Of course I can just use the PIR Sensor instead, but I like to use the mmWave sensor because I can hide it in the frame.

thx @emlowe for your feedback

I must admit that I hesitated going forward with this project, but I realised I’m not in to make a perfect Google Home Hub replica. I want to find out how close I can get with the features I want.

The carousel seems similar to what Google does when you ask something. I also looked into the MMM-Page-Selector module because it seems to be a good way to define the different screens. It also seems to be working together with the MMM-Voice-Commands module.

For now I want to make two screens working, one screensaver screen with the Google Photo background, clock and temperature. And one with some information, just to have a proof of concept.

I decided to setup the “screensaver” set of modules first:

I managed to get the MMM-GooglePhotos module running, but somehow the photo overlaps doesn’t use the whole screen.
To solve this I set the margin in main.css to 0 and added a padding of 30 pixels:

margin: 0;
padding: 30px;

I also adjusted the height and width calculation:

height: calc(100% - 90px);
width: calc(100% - 90px);

After that I setup the Clock to only show the hours and minutes in the lower left corner.

showDate: false,
displaySeconds: false

Below that I put the CurrentWeather Module, that will only show the rounded outside temperature.

roundTemp: true,
onlyTemp: true

The weather icon is now shown in grey, maybe I will add an additional color per icon later on.

Following the recent introduction of the Google Home Hub I was wondering if something similar could be achieved via Magic Mirror. As I have a Raspberry Pi 3B and Raspberry Pi Touchscreen with enclosure lying around the real effort would be in setting up and configuration of Magic Mirror.

So I started putting the hardware together and installing a fresh Rasbian STRETCH (with Desktop) OS on it. I hooked it up to my Wifi network and enabled ssh.

After doing the usual raspi-config I added lcd_rotate=2 to the config.txt to rotate the screen (and touchpoints)

Then I installed MagicMirror and made it autostart using pm2. So I now have a default MagicMirror running on a 7" touchscreen in a enclosure. So far so good…

Next steps would be to:

• Configuration of my own modules in Magic Mirror
• Setup multiple “slides” with modules
• Find a way to show a different screen (with Google Photos backgroud, date & time and outside temperature) as a MagicMirror screensaver
• Use the OS screensaver to turn the screen off after x minutes/hours (or more something like the Toon dim function)
• Abandon the project halfway to start another one
• Theme the interface
• Turn off the OS screensaver when movement is detected
• Show data, scenes and switches from domoticz and Home Assistant
• I could implement Google Assistant (I don’t really care for voice assistants)