Advice on using Screenless Android Phone for IoT device - General Questions and Answers

I would like to create an IoT device by buying new, cheap android phones, strip them down and remove the screen, rebox into my own physical box, install a custom ROM without any bloatware (and that will boot without a screen!), and install my android app on the device to do stuff.
An example of a purpose for this could be a GPS tracker for a car. The box would be placed in the car, and record GPS and accelerometer readings, posting these readings back to a central server via the cellular network. (This is just a random example, so don't focus too much on the detail of this, but there are thousands of uses for a IoT board with the sensor, CPU, RAM, storage, and connectivity capabilities of a budget android smartphone)
The reason I want to use existing phones is that they are wonderful, mass produced, cheap devices with a variety of sensors I can use.
The reason I want to use Android is because it is because of the customization ability, and the mature development ecosystem.
To me, it seems an obvious thing to do, but I don't seem to be getting much joy trying to search for examples of this sort of thing (either here, or on the internet in general).
So some questions:
1. General thoughts? (Good idea? Am I missing some fundamental problem?)
2. What are the challenges of running Android without a screen connected?
3. Are there any custom ROMs you know of that specialize in this sort of thing?
(I've seen Google Brilo, but it still seems a bit early yet, and I really like the idea of just using the standard Android SDK to develop the app - and the abundance of help and information that comes with it)
Thanks!

Related

[Q] Device Options for Field work

Hey, I'm a developer who already has this program that does complex data entry, designed for field service reporting. The problem is it was written for Windows Mobile 5 (which is no longer supported) and runs on old HP iPAQ's (hardware that is no longer being manufactured or sold). There are only about 30 units on the field and I have enough backup units to keep the company running for a little while, but a more long term solution is in order.
I've been looking around for a new device that does what I need.
Really all that's needed is Wi-Fi capability (which applies for most everything out there anyways), built-in database (which I thought was widespread but apparently isn't included in Windows Phone 7), and a touchscreen (for signature capturing purposes). It could be a phone, tablet, pda, eda, or really anything.
Now,this seems like a forum with a bunch of veteran developers for a wide range of mobile computing products. Do you guys have any good recommendations for what device would be good/cost effective? It doesn't have to be the same programming language and porting it is no problem, I just need ideas on what devices would be good for the job.

The Future of Android ...

So, Heres what I'm seeing..
Windows eventually removing their heads from the warm dark places which inspire them, and bridging the gap between Win 8 and WinPhoney.. and giving users back a powerful PDA-like experience where we can once again do powerful things on our devices besides swipe & play games
iPhone6 or iPhone7 actually functioning more like a tablet, the iPad functioning more like a macbook, and people actually getting work done on their phones again.
Both the above phones docking into docking control stations which go to myDP out to Flatscreen + mouse & keyboard, for a Full Office Pocket Computing Combo
and Android clinging to their obsolete wanabe iPhone, pain-in-the-butt smartphone experience they seem overjoyed about... without anyplace to progress to but the dreaded Linux OS, losing all of its users but the current Linux users when the bridge from Phones to Desktops is complete
Google, Apple, & MS working like crazy to be sure phones stay as far away from desktops as possible for as long as possible, by continued slothful micro-trickling of RAM, ROM memory, Internal Memory, GPU & CPU speeds, and very un-user-friendly software which keeps phone users confined to a small phone box to expand their profitability
the rise of Hardware companies like ASUS, Huawei, etc, who offer devices able to support Win8.. Apple quickly changing their game to follow suit, and the inevitable end of this little current SmartPhone-only empire
and Android left diddling themselves making a few diehard Desktop Linux OS Phones
and I dont see Android having much of any future at all in that rapidly approaching time period they seem completely oblivious to.
anyone agree with that forecast & assessment?
Android is very popular among all the OSs & the combination of a cool software & high end latest hardware makes it endlessly happening.
ak070 said:
Android is very popular among all the OSs & the combination of a cool software & high end latest hardware makes it endlessly happening.
Click to expand...
Click to collapse
ok.. so the "cool apps" you feel will make it to be "endlessly happening", regardless of the generation or era?
and "the latest hardware" remember is all relative...
You dont think INCREASED hardware capabilities able to support a larger more fully functioning, & more useful OS will make these little apps seem a trivial waste of time?
chinarabbit said:
ok.. so the "cool apps" you feel will make it to be "endlessly happening", regardless of the generation or era?
and "the latest hardware" remember is all relative...
You dont think INCREASED hardware capabilities able to support a larger more fully functioning, & more useful OS will make these little apps seem a trivial waste of time?
Click to expand...
Click to collapse
I never mentioned cool apps. I'm talking about the overall OS. Its Open source. So there are many manufacturers that use this OS & come up with their own ideas & devices with different designs which gives users a very wide variety to choose from. And as far as new hardware is concerned, manufacturers like Samsung & Sony use new hardwares to add new features which were never implemented before & completely redefine the 'Smartphone' experience.
I'm not saying that other OSs are bad. It's the matter of one's own taste finally.
Seems to me your assessment is based on your usage/desired usage.....in reality many many people don't really even need a Windows pc, and use the internet primarily for media/social applications, which android favours.
So there will always be a market out there regardless I reckon
Nice fortune telling but i really dont agree ...
ak070 said:
I never mentioned cool apps. I'm talking about the overall OS. Its Open source. So there are many manufacturers that use this OS & come up with their own ideas & devices with different designs which gives users a very wide variety to choose from. And as far as new hardware is concerned, manufacturers like Samsung & Sony use new hardwares to add new features which were never implemented before & completely redefine the 'Smartphone' experience.
I'm not saying that other OSs are bad. It's the matter of one's own taste finally.
Click to expand...
Click to collapse
ya... but is it really just about OSs? or do u think the manufacturers play a larger role in it?
For example, if Samsung & HTC were to create the majority of their devices for use with a new "Windows Mobile 7" because of its design & functionality & usefulness exceeding that of Android - which would inevitably happen, because even though Android is useful for certain things, a Phone OS who encompassed those things, and surpassed it in many others, creating a wider-use platform able to satisfy a broader user base would have to dominate - Dont you think that the number of Android users would dwindle to near nothing?
if every new HTC & Samsung was built with, say, a "Windows Mobile 7" which out-performed Android, and was preferred by companies like ASUS, Huawei, HTC, & Samsung, because of the OS having more use in Government & Job-specific applications that Win CE is often used for, which WinMo 6 started to see a bit of before it was sat on.. Users would of course move from Android to WinMo7, and I really dont see that there would be many android users left at all
Linux is Open Source, yet very few there are who use it & develop for it..
Windows is the largest OS on earth.. Like it or not - like MS or not - developers still create freeware and awesome programs according to the specifications of the device. and if that device allowed for more control, functionality, & customizability, it stands to reason that most devs would migrate as well
If this is a arguent thread well here we go..
i walked into the windows store and messed with the 41mp phone and all i did was spend 10min scrolling down and up to find apps
end of my argument...
androidfoshizzle said:
If this is a arguent thread well here we go..
i walked into the windows store and messed with the 41mp phone and all i did was spend 10min scrolling down and up to find apps
end of my argument...
Click to expand...
Click to collapse
ya, it can get a bit silly... apparently they are alphabetized, and i think you can sort different ways too..
For 100% sure, WindowsPhone will never amount to anything unless its a full Win8 they call WinPhone some day
but I do think win MOBILE 7 is whats needed, and what could sink android.
Android won't sink..Ubuntu will have a phone out that has a full desktop OS by the time windows does anything.. Android is a mobile operating system anyways
sent from 9 month old nexus 4
open source
i agree with androidfoshizzle..linux (android ubuntu) is open source and have many supporters..its free but gives high end support and availability of features.they understood that linux has to become user friendly and it has come to a very reasonable level!
chinarabbit said:
So, Heres what I'm seeing..
Windows eventually removing their heads from the warm dark places which inspire them, and bridging the gap between Win 8 and WinPhoney.. and giving users back a powerful PDA-like experience where we can once again do powerful things on our devices besides swipe & play games
iPhone6 or iPhone7 actually functioning more like a tablet, the iPad functioning more like a macbook, and people actually getting work done on their phones again.
Both the above phones docking into docking control stations which go to myDP out to Flatscreen + mouse & keyboard, for a Full Office Pocket Computing Combo
and Android clinging to their obsolete wanabe iPhone, pain-in-the-butt smartphone experience they seem overjoyed about... without anyplace to progress to but the dreaded Linux OS, losing all of its users but the current Linux users when the bridge from Phones to Desktops is complete
Google, Apple, & MS working like crazy to be sure phones stay as far away from desktops as possible for as long as possible, by continued slothful micro-trickling of RAM, ROM memory, Internal Memory, GPU & CPU speeds, and very un-user-friendly software which keeps phone users confined to a small phone box to expand their profitability
the rise of Hardware companies like ASUS, Huawei, etc, who offer devices able to support Win8.. Apple quickly changing their game to follow suit, and the inevitable end of this little current SmartPhone-only empire
and Android left diddling themselves making a few diehard Desktop Linux OS Phones
and I dont see Android having much of any future at all in that rapidly approaching time period they seem completely oblivious to.
anyone agree with that forecast & assessment?
Click to expand...
Click to collapse
fortune teller!
androidfoshizzle said:
Android won't sink..Ubuntu will have a phone out that has a full desktop OS by the time windows does anything.. Android is a mobile operating system anyways
sent from 9 month old nexus 4
Click to expand...
Click to collapse
I think it already does
The problem with Linux is its just over complicated and not much fun to use.. everytime you want to do something, you have to pull out your programmers reference book.. or google it.
I had thought early on that Android would be a way to enter Google into direct competition with Apple & Windows Desktop OSs, and give us all another viable option..
the problem is two-fold..
1stly, Linux Devs are overly left-brained. and they dont have any creative oversight or people in charge of non-geeky usability engineering.. making Linux the choice of OS for people who enjoy doing what would only be done by IT guys if your computer had serious problems on other OSs
2ndly, Google's own shortsightedness.. their Android dev team has created an implementation of the Powerful Android Platform that is really anything but powerful... and these google OS's are designed inside and out to be phones, and have little use outside the mobile phone market, except as equally-functioning tablets, which make them little more than large phones, without great calling ability
the Ubuntu OS is starting to be developed for Android, rather than the other way around.. its looking more and more like a Phone interface.. It actually seems to be optimized for touch screens, and if not, the developers think "making Linux more user-friendly" means making it work like a phone..
Users want an OS thats fun to use.. we're not all retards... i dont think the devs get the difference.
at any rate, Ubuntu is definitely NOT replacing Win7 or Win8 or OSXs anytime soon, thats much has been made painfully transparent by google..
further, google really wants to make you know you are using a Google product.. it has Google DNA on it from top to bottom.. which is great if you think Google is the way you should be doing all of your computing.
I think, still, a powerful Windows Mobile 7 Solution would quell Android, and take all wind out of its sails, and eventually pretty much squash it for all but Ubuntu Desktop users
But Even given its complexity and difficulty of use, how many of us would still prefer to have a Linux Desktop on our Phone, rather than a Google Phone for our desktop???
I most certainly would

[Q] Why is Android so hardware specific

May be a dumd question, but I'm asking anyway. Why is Android so hardware specific?. or better yet, why can't you install any android system on any phone?
example: you can install windows or linux on any system, you don't have to have a certain set of chips. Is it a propitiatory type thing with these phone makers. is the whole android system so small, that the coding can't be added to make it installable on any phone.
I'm not a coder, or prgrammer, I do understand it enough to read what it is doing, but cannot write anything. Can someone shed some light on this
Thanks in advance
You've got this completely bass ackwards. Android is decidedly not hardware specific. Phones, tablets, computers, car stereos, home heating/AC, watches, TVs, etc. Android is open source, which means anybody can develop it to work on just about any platform they wish. I mean, you can get refrigerators and microwaves that run Android for Pete's sake.
If you're complaining that you can't get Android on an iPhone or a Nokia Lumia, then you're barking up the wrong tree.
To add some more "devices" to the list above on which android can be installed - cars! I'm working in that industry now
And the answer above is right - if your device is totally closed for others, then you will not be able to install anything on it, maybe, without really breaking into it. Android can be put mostly on any hardware - if the hardware manufacturer wants it. The short description is - Android is implemented on top of HALs (Hardware Abstraction Layer) which are then implemented by manufacturers specific to their devices and then Android works "out of the box".

Android phone powered Desktop

Android devices are so powerful today, and the hardware is becoming so powerful that I don't think that the software is utilising that.
We already have much of the technology in devices of today to enable a desktop environment to be streamed from our phones.
Display output: Chromecast (wireless display), MHL (Wired display & charger), etc.
Input methods: Bluetooth Keyboard & mouse, Accelerometer (to emulate mouse input), etc.
UI: Separate Launcher for the desktop UI.
With Microsoft bringing Windows 10 later this year as one OS for both the Phone & Desktop, surely that will allow them to work better in sync with one another, but that will still require a separate desktop computer and phone to create this kind of experience.
But Google now has the chance to simply output a separate UI from the same device that can display a phone UI all at the same time.
If we look at past launches of major Android builds then this coming Google I/O would be the perfect time to announce something like this, since they say that they usually deliver one major build that focuses on UI, and then one that focuses on major feature integration.
And not only would this allow for us to take our desktop with us everywhere in our pocket and connect wirelessly to any compatible display but also it could enable people in poorer economies to buy one device which could give them better access to the internet with a portable display integrated into the device, and also they could connect to the larger displays to browse the web or work on office documents with apps such as 'Google Docs'.
This could really be useful for people who wish to use their device in the work place too.
With Android mobile now offering multiple user profiles on their phones, surely they could create one profile for work, with all of their work apps available in both their phone and desktop UI's, but also a personal profile with all of their media applications & games available when out of work.
The desktop tower may still be useful for a few years to enable support for legacy applications whilst we are waiting for those applications to be ported over to Android/Android Desktop, but that shouldn't take too long considering how quickly we are see'ing apps becoming available to Android offering the kind of services that many of us desire, and if the developers only need to create one application back end for both the Desktop mode & phone mode, then it will be much quicker to bring apps to market with a small bit of time required to make a UI which can be scaled between the phone & desktop mode well.
There are multiple projects trying to create this very experience, but if it was a major part of the Android OS then finally people will get the experience that many people are waiting for, you only have to look at the comments on the developer pages of these projects to see that many people want this kind of experience.
With 64-bit now supported in Android too there is less of a reason to hold back this kind of experience.
I agree totally. Is this the only thread on this subject? Was going to setup Chromecast for video and Bluetooth for keyboard, mouse and audio. Doing this on a Jiayu S3A which is very powerful. Would like one place to discuss what works and what doesn't. Launcher options also need to be discussed.

ubuntu phone - yes, no, maybe?

It is possible to get 3 different phones with ubuntu phone now, none of them too expensive.
good.
i wonder what people's experience or informed opinion is?
ubuntu is pushing "convergence", which basically means that one operating system runs on all devices, that i can use my smartphone as a computer...
how far along is it?
now there's loads of blog articles and reviews out there, but most of them focus on comparing ubuntu phone (UP from now on) to other phone OSs - with their fully grown app universe. of course UP comes up short!
but that's not what i'm interested in. OS stability, and the standard browsing, music and video, and of course phone and sms is good enough for me.
but, i want the same freedom i have with my linux desktop install: to Do Things.
(my most important project is still to get a usable connection to the data & media stored on my kitchenserver.)
the day before yesterday i had a chat with someone on #ubuntu-phone - i think it was a dev.
i asked if i can use & upgrade it like any normal ubuntu/debian-based, install apps and utilities and so on.
basically he said, gui apps are difficult because UP uses a different gui model than Xorg, but basically yes, but you loose you guarantee that OTA (over the air) updates will work. but they should, regardless.
yesterday i was browsing the ubuntu phone section on ubuntu forums; of course people only post if something doesn't work - it looks like a normal and healthy distro forum to me.
OTA updates come in almost daily, i gather. very lively development.
there was, however, a lot of familiar discussions about how to get some app or other working; familiar from my 2 android phones: convoluted and fragile solutions, like installing ubuntu desktop in a chroot.
UP even recommends adb (android debug bridge?) as the only way to access the phone from your computer. or the standard mtp connection. so it's the same **** as everywhere.
the other aspect is this:
- ok, android is big, evil google, but there's a few established solutions around to use it without an account, use f-droid instead of play store, well documented security hacks and so on.
- UP certainly isn't the white knight here, but if not google, what do they use, is it really "better" than google and can i opt out easily?
yes, i am seriously considering to buy a UP phone, as soon as i get the feeling that it is an improvement freedom and security wise.
i wonder what people's experience or informed opinion is?
bump
...just a gentle one before the weekend ends.
i'd love to get some answers...

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