Magic Mirror with touchscreen Display/Monitor

core

Hello all,

I am planning to build a new Magic Mirror, this time with touch function.

As mirror glass I use a Pilkington Mirrorview, which according to the manufacturer is suitable for touch functions (capacitive).

Now I have the question how to realize the touch function of the display behind it. I had already thought about using a PCAP touch foil, which is mounted between the Mirrorview and the LCD display. According to the manufacturer, this would work, but it is very expensive.

A cheaper alternative would be a touch screen display that is as flat as possible.
Important would be the size:

My mirror measures 44 cm x 50 cm (width x height). I.e. the display must not be too large, 17.3" maximum 18.4".

Can you recommend a suitable display that is as flat as possible and not too heavy? Would such a display be suitable, for example?

https://www.amazon.de/-/en/Viewsonic-TD1655-Multitouch-Replacement-Silver-Black/dp/B08778F756

Many greetings

sdetweil

@core use an ir touch frame over the glass.

Snille

@core I also used a IR-Frame in my build. Works very well if you just want “simple” point and click and/or point and drag (even with two fingers)… I have not tested it with more advanced stuff. :) But for the MM it’s great. You can read about my build here and underneath the picture, you can find a link to a full photo album with pictures and text to all pictures about what you see. :)

core

Hi,

thank you very much for your replies.

An IR touch overlay is unfortunately not possible in my case. The mirror is frameless and clamped in 4 holders (2 above and 2 at the bottom). That’s why i am looking for a touch display which can be mounted under the glass.

Best regards

sdetweil

@core said in Magic Mirror with touchscreen Display/Monitor:

That’s why i am looking for a touch display which can be mounted under the glass.

that doesn’t exist. the monitor is dependent on human skin resistance (try it with a glove on)
the mirror glass would block that

core

@sdetweil
Ok, but a PCAP Touchfoil under the glass, mounted between a LED display and the Mirroview, will work for sure (asked Pilkington and the company selling the foil).

Best regards

sdetweil

@core but this is effectively the same as the ir frame… the special touchfoil does the work… NOT the monitor…

cowboysdude

I have a 24" one that after I bought it found out that it will not work in Linux so my only option is to install MM on Windows … ugh. So when I can come across a NUC or something small I will until then …

BJK

@Snille Hi Snille
I have had greate use of xin.sh file to run at start. It contained the:
“DISPLAY=:0.0 xinput --set-prop “Multi touch Multi touch overlay device” “Coordinate Transformation Matrix” 0 1 0 -1 0 1 0 0 1”
However, now using the pm2 start xin.sh for automatic start, I get an error in the pm2 log
What do you use to correct the ir-frame ?
Best
Bo

sdetweil

@BJK what is the error?