Pocket projectors: PIQO and Philips PicoPix Max


levi

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Yeah, sounds like the lenses are out of alignment as well as possible some connector that's friction fitted, like a pin header or edge connector has worked loose, or at least onto a resistive spot. If you can't get into it without destroying it, then I would suggest at best that it's only useful for spares after you explosively disassemble it.
 

PowerGod

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It's not just a lenses issue, seems to me that it acts strange when it becomes too hot... when it's cool it works for like 5 minutes perfectly before rebooting or hanging, if instead I turn it on while hot it just starts weird... maybe it's just some cooling parts that detached... I'll try again to open it, or I'll just discharge completely the battery and throw it away if I can't open it...

I have the Philips projector anyway, at least it will be used more now that my preferred one is unable to do the job +o(

I never needed two projectors anyway.
 

levi

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Yeah, heat killing this is generally a dodgy solder joint that works loose when it gets hot. It could conceivably be any kind of connector really, but solder joints are the most common.
 

PowerGod

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Philips Pico Pix Max:

  • I found out why Chromecast was not working anymore, the fault was my Router/Access Point... sometimes seems that it just "forget" how many devices are connected to it, and while all those devices can still access internet, them are unable to contact the other local connected things...
So, I just have to go to the router settings and have a look at the "Connected devices", if in that list I can't see both the projector and the PC, I just disconnect/reconnect the device not listed to make it appear... and that's it, Chromecast working.​

  • The battery of this thing is superb, after a movie (1h30m) it still had almost 4 hours left (with both Bluetooth and WiFi on).
  • The auto keystone correction is still not so great... I actually had to disable it to have a better shape
  • The tripod that came with the projector is not so useful... I really need to get a proper tripod, maybe taller and with something to extract/reattach the projector, instead of having to screw/unscrew it everytime.

EDIT:
  • Streaming from SMB share works great (from PC, but from the Pandora there is too much lag)
 
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PowerGod

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This wasn't on purpose, but...

2 meters fall test:

PIQO
= Became unstable (after turned on for 5 minutes it starts rebooting or showing artifacts)

Philips Pico Pix Max = No signs of issues (the metal part of the "wonky" tripod is bent, but it deserved it !! Because was its fault !!)
 

PowerGod

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There was a new firmware update for the Philips Pico Pix Max, but with only interface improvements, they added favorites and some kind of cloud app store managed by them, that you can hide.

No news about improvements for auto keystone correction.

Some people asked if it was possible to at least add different profiles to save, so at least if you use it always in 2/3 different spots you don't have every time to correct the shape/zoom/rotation by hand... but there was no answer... +o(
 

PowerGod

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Philips Pico Pix Max:

I managed to make the use of network stuff more comfortable, but still I find some limits.

Some apps, like "Night Video Player" are unable to access even local storage, so the only way to play something with them is to browse to the file you want with the File Manager, and launch it selecting the player you want to use.
The default File Manager anyway is able to only access physical supports, so local or USB...
There is a workaround anyway, using another APP to manage files, "Total Commander" !!
With it you can add the SMB plugin and create a network connection to your shared folders, so that you can launch directly your network files with the player you want, even if that player doesn't have network functionalities !! :cool:
  • Night Video Player: can play videos from shared folders only if it's launched from Total Commander with the network plugin.
  • VLC: can access by itself almost anything in the network, it is also becoming incredibly better in general at every new version.
  • KODI: it has SMB capabilities, but seems unable to even see the network... it gives only some numeric errors and I'll have to do some research.
Using Chromecast works pretty well, but it is visible that the quality of the video and audio are not the original one (if you really look at the details), and also it has a really small cache, so if for some reason the connection is not perfect, some lags could happen.
Playing videos from SMB shares instead seems absolutely lag free, and the quality is still the one of the original file.
 

Phlyra

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So I acquired a Nebra AnyBeam but the image quality on the wall is a little way off pin sharp. It’s not the most ideal wall for projecting in the sense that it was very recently painted white but not with a projector wall paint (such an expensive thing exists!), the wall’s not completely smooth but it’s not exactly very rough either, and I know that the AnyBeam’s output is only 720p...
I’ve tried using the AnyBeam’s settings to set brightness to max, have an appropriate sharpness setting for the distance (not that this really seems to have much of a positive influence as it appears just as “pixelated” 30cm - 3m away, no matter how optimised the sharpness setting) and ensure that the projection is level, with minimal keystone adjustment (which can reduce the image sharpness).

But I wondered whether anyone had any thoughts on positioning a loupe or other magnifying lens directly in front of the AnyBeam’s acrylic laser aperture?
Presumably such a lens would need to have a focussing feature, otherwise you’d just be magnifying the “pixelation”, rather than sharpening the image?

When I say that the image is a little way off pin sharp, I mean that it’s fuzzy to the point you can’t really read what’s written in standard font size in an Excel spreadsheet; it appears perfectly legible on the laptop screen but is too indistinct when projected onto the wall.

I’m really hoping to be able to use the AnyBeam as an extra screen for my Pyra...
 
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PowerGod

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@Phlyra : What is the shape of the projected pixels ? Is there some empty space between them, somehow like scanlines on CRT monitors ?
 

PowerGod

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I don't know what changed, but now I can perfectly stream movies directly from a Pandora SMB share to the Pico Pix Max, without lags at all !! :confused:

Yesterday I have seen a movie with the Pico Pix Max that seemed very low quality, but I already saw it before and was fine... so after some inspection to the file and the projector I remembered that the last time I used the PIQO to watch it...
The movie was 720p with maybe too much compression, but seemed good both from a 23" monitor and from the PIQO (maybe 50" projection), on the Pico Pix Max instead the artifacts around the shapes are very visible... I can see them even on the monitor but I need to be close and focused to see them.
My PIQO is broken but I was able to see a minute of the movie on it and indeed it still seemed even better than on the monitor...
I suppose that the strange shape of it's pixels (diamond) and the little holes between them help to enlarge the image without actually doing too much elaborations on them, and somehow makes compression artifacts almost invisible... :confused:
Now I miss even more that projector :'(

Of course the Pico Pix Max is still the best at showing a Full HD video with low compression, but with low quality videos the imperfections becomes very visible.
 
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