Pinephone LED Fresnel lens - Commentary
#7
I was more or less aware of these dimensions but I didn't thought the case was so much developmental.

i-phone 6 follows a similar approach of everything being in a different IC, namely, Audio, GPS, Wi-fi, baseband modem, sensor controllers, power controllers, screen controllers etc and indeed the battery doesn't last long but you get through the day without heavy use.

I think the most value I get out of Pinephone is the dramatic advance on my knowledge on Linux and hardware due to the problems that I face.

I want to develop a program that can print a keyboard on the terminal framebuffer and senses the screen so that you can logout the GUI and have a working phone that the battery lasts long enough to go through the day without missing calls.

LED - I considered removing the case to check the spectrum of the LED but I don't want to destroy the sticker on the screw and "void the warranty" for the moment. On commercial phones the lens's grating is very fine and starts from the centre with a dot (degenerate circle), Pine's leaves a large area in the centre uncovered and has a small number of thick rings.

Audio - I think the "real" quality is through headphones and it is really bad, it reminds cheap auto-tuning radios of the early 2000s which would drain 2 AAA batteries in two hours.

I generally test many different applications to make an assessment whether the problem is either on the software or the hardware side, for example with mpv or ffplay I can smoothly reproduce even 1080p videos but through the browser only up to 720p with a lot frame of dropping and only for adequately designed websites like youtube.

I had had a bad experience with A33 Android 5.0 tablets in the past but since Android had being ported to Allwinner and with the help of AOSP I would expect it to be much easier, I haven't yet tested GloDroid.

Now I am mostly excited with the modem and whether it can be hacked to a level that you can control it out of specifications and use it like a software defined radio to research the cellular network.
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RE: Pinephone LED Fresnel lens - Commentary - by mouffa - 05-30-2021, 06:00 AM

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