Cheap smartphone

Hi , i found a really cheap android smartphone here ... but im not sure is scam or not. Anybody here know about this brand or this phone?

Posted by docrivers 5 years ago  |  last reply 5 years ago

AA Smartphone Charger

Is there a way to charge a Smartphone using a single AA battery? I already have a DC-DC booster to 5V but the current is not enough to charge the phone, can someone please help me with this?

Posted by Wihand 2 years ago  |  last reply 2 years ago

Uses for a dead smartphone?

Hey guys. New to all this disassembling/reassembling/making new stuff, please humor me. So I have this old Samsung Galaxy S Plus phone, which died in early 2014. And now, it's summer holidays, and I'm bored. I remembered this phone, and thought that maybe I could make something out of it. Is it possible to, say, take out the display, or the camera, and use it somewhere else? Maybe I could do something with the speaker? I tried searching on the internet, but didn't find anything. Thanks in advance.

Posted by NSDCars5 4 years ago  |  last reply 4 years ago

Controlling an Arduino with a smartphone? Answered

I am building a Hexacopter and I wondered if it's possible to control the Arduino inside it with a smartphone, to be able to do things that a regular RC can't do, like showing me how balanced it is, showing me a real time camera view, and control it with virtual joysticks. Is it possible to do all of that? How far can a smartphone transmit? 

Asked by yonch 6 years ago  |  last reply 6 years ago

LDR Grid + Smartphone = ?

Hi, I've got an idea but I don't know what it can be used for, yet. Maybe you'll have some ideas for useful applications based on this concept. The idea is to make a grid of LDRs which fits the size of a smartphone/tablet screen, write some code which draws a similar grid on the screen (or just switch images of that grid) so that each LDR will be affected by the light (and color) provided by each cell from the screen.

Posted by nivini 2 years ago  |  last reply 2 years ago

Resources for a custom smartphone?

I am annoyed at touch screens and want to make a button/touchscreen hybrid. It should run Android OS. I have a design in place and the body is not an issue.(3D Printing) I want to use a touch button like used on the Blackberry Curve ) but the screen should also be touch. I need hardware(IC's, motherboards, etc.) and I need drivers and the OS (Stack, boot image etc.). Resources to get these are not in my knowledge. 

Asked by Okapi10 4 years ago  |  last reply 4 years ago

Best Smartphone to not use as a smartphone?

I would like to buy a smartphone but a don't want it for calling or texting. I just want to use it for listening to recordings and music and watching downloaded videos and I would like to take pictures with it it and do all the other things a smartphone can do except what it's designed for. What phone would you recommend? I want a phone that has lot of accessories made for it. I would like this phone to be under 150$. I want to also use this phone for lots of DIY projects.

Asked by sonic broom 1 year ago  |  last reply 1 year ago

Is it possible to use a Samsung Star (GT-S5230) without a SIM card for instructables around here?

Recently, a family member was trowing a non-functional Samsung Star away, but I kept it. There were two things broken: the side-buttons, that aren't really that necessary; and the touchscreen, which, even though it's pretty much indispensable, can easily be replaced for around 15$. Now, my question is, is it worth replacing it? I have searched quite a lot, but most instructables involving smartphones I find end up mentioning Android, and Android apps (specially arduino instructables), and so I'm not particularly sure this phone would be good for that. I don't want to use it as my phone, so the smartphone cases/holders/stands instructables aren't (by themselves) useful, in this situation. That being said, if you know of any (good?) instructables either about or using smartphones that could be done with a Samsung Star, please link me to them, I will be very thankful.

Asked by Strickster 5 years ago  |  last reply 5 years ago

Open Source DIY Smartphone

Is it possible to design an open source smartphone, which everyone can build himself? Please tell what you think about it and what ideas you have.

Posted by DELETED_Bachlman 3 years ago  |  last reply 3 years ago

Any DIY Smartphone Experience?

I recently stumbled upon this interesting piece of hardware: And I was wondering if anyone had any experience with it, and whether or not any of you were able to build a functional smartphone. Thanks a ton!

Asked by Michael.JosephII 8 years ago  |  last reply 7 years ago

Making an external camera for smartphone?

Hi, everyone. My smartphone's camera is really bad and i wanted to change it but when I thought about the risks i changed my mind. Then i got an idea, which is to make an external mini usb camera for my phone from another phone's camera. I searched the internet but there is no results (I found some videos where they use a webcam for this but I am no sure if it is the same thing) . So, is it even possible?

Asked by Rayane05 1 year ago  |  last reply 1 year ago

how to format blackberry smartphone?

Asked by syayidduman 8 years ago  |  last reply 8 years ago

DIY smartphone camera trigger?

Hi, So I just broke my friend's selfie stick while playing with it. I'm wondering how to make the trigger for that stick (wireless or wired is OK). I knew that Apple's Earpod paired with an iPhone would work as a trigger but how about Android phone (I've seen some bluetooth camera shutters but don't know how they work)? Also, if possible, suggest me few things about that monopod because this is my first time in Photography and stuff. Thank you guys. 

Posted by Gandalf OftheinternetI 4 years ago  |  last reply 4 years ago

Can an old smartphone be repurposed?

Hello and my heartiest greetings to all reading this,I have this old Nokia Lumia 540 and was wondering whether I could replace the OS with something like the Raspbian to use it with python and utilize all the cool stuff already there in the phone. Is that sort of thing possible?I am totally new to this stuff and hence have no idea about any of it. Please help me out.Cheers. :)

Asked by Bhabeshr 11 months ago  |  last reply 11 months ago

how to purpose a smartphone LCD?

 Okay, I'm new to this and I do not have any knowledge of programing or circuits, but I do want to learn, but sticking to the basic has never worked for me, so i want to star with a little more advance project or maybe is not that advance I'm new remember,  so I already set myself a goal, I hate to throw away stuff for some reason, from clothes to technology, so over the years I have been accumulating a lot of cell phones, consoles and an old laptop, anyways i want to know if there is any way to re-purpose some of the components, like LCD, cameras, speakers, everything. But as for right now i want to focus on LCD specially my phones, like making a mini TV or something like that, I know i can get a control- for the laptop LCD but I haven't been able to find any for the cellphones LCDs so if somebody has any tip on how to do any just let me know so i can focus on learning how to work it up thanks, and I apologize if there is any error I'm still learning English 

Asked by Pishy1911 1 year ago  |  last reply 1 year ago

Can you back up a computer like you would a smartphone? Answered

You can back up smartphones completely, files applications and i think sometimes settings. You can also back up computer files. But can you back up computer applications? some applications aren't portable.. :-/

Asked by Houdinipeter 8 years ago  |  last reply 8 years ago

Cellphone hardware alternative uses? ?

I have a surplus of smartphones and a PDA/Kiosk device for store inventory. My question is, is it possible to use one or all of these devices and somehow create an UMPC? Maby flashed to Ubuntu? I am a massive cheep skate and if this is possible it could be as strong as my desktop that I assembled from freebies...

Asked by GunzoZabuza 5 years ago  |  last reply 5 years ago

Would like your thoughts on our development project

We have been developing a pill dispenser that is integrated with your smartphone. We used 3D printed parts and an RFduino microprocessor. This device would allow tracking of medications from the factory to the end user, eliminating couterfeit meds. In addition it would remind you when to take your meds, and notify your doctor or pharmacy via the internet. Watch the video and let me know what you think.

Posted by InteMed 4 years ago

I'm modding a battery-free android phone but I have some problem ? Answered

Sorry for my bad English :) I have an old Android phone and I want to use it without battery inside, so I do a little mod based on diagram in the following picture. Everything works fine but I have some problem, when I unplug the 5v adapter from wall socket and plug it back in, I can't turn on the phone using phone's power button. Only when I disconnect the battery circuit from the phone and reconnect can I turn it on using power button. What's wrong here ? Sometime I need to unplug the adapter but i don't want to disconnect the battery circuit from the phone :(   Thanks for your help :)

Asked by ragnarok94 4 years ago  |  last reply 4 years ago

External smartphone Monitor using old laptop LCD display.

  Hi there, I am currently working on a project on reverse engineering. I wish to attempt at somehow using an old laptop lcd, as an external display for my smartphone. As an amateur electrician and computer programmer I would love it if someone could direct me and tell me which goals I have to accomplish to make that happen. I understand that the signals coming out of an lcd display are different then on a cell phone so I had found a control board that will transpose the signal into a VGA signal which can then be directed to a computer. But is there a way to send the signal to a usb port for a smartphone to plug into. Granted a program, software and drivers for the monitor ets would need to be created but that aside, could something like that be possible? Please indulge me. Thanks for your time.

Asked by Ahakimi2012 7 years ago  |  last reply 2 years ago

Help needed making a pause system for smartphone headphones

Hi guys, I'd like to take an existing pair of headphones (not a specific pair, I can buy a suitable pair if this will make things easier) and implement a switch that will automatically pause my android music when a switch is pressed. Specifically, I'd like the music to pause when a circuit is broken. Since Android will automatically pause music when the headphone jack is removed I can't imagine this would be too difficult to build. However I would also like the music to automatically start again when the circuit is closed again. I'm not overly tech savvy but I think this project is within the realm of my capabilities! Any thoughts or help would be much appreciated! Regards, Tig

Posted by tig5 5 years ago  |  last reply 5 years ago

Arduino Basics Answered

I am a beginner to the Arduino field can you please help me with these questions ?  How many smartphones can communicate with a single Arduino at a time? How many Arduino a single smartphone can communicate with at a time? How many devices such as AC TV and lights can be connected to a single Arduino? Is voice/noise isolation room affects Bluetooth transmission (if my phone connected to the Arduino using bluetooth)? In case of smartphone outside the room containing the Arduino. please if you have any references or links that might help with understanding the main concepts please help..

Asked by maryamCS 1 year ago  |  last reply 1 year ago

mobile smartphone holder

I have been looking for a way to carry my HTC smartphone on my wrist so that I could see the screen.  As I ride a bike and go camping a lot I use my HTC built-in GPS. So today after some searching, I found page This is exactly what I want. Unfortunately it is not sold in our country and I dont want to spend money on transportation. So I thought that maybe this wrist holder can be selfmade out of socks, stockings, etc. Do you have any good ideas to make this and in what material? youtube:

Posted by fred7 8 years ago

Mobile Phone Format

To Whomever has the ability to make this available, please, please, please seriously consider making the website mobile phone friendly. When I try to view the site on my Droid smartphone it is difficult because of the way the text displays.  I love instructables and I also do a lot of web viewing on my phone.  It would be nice if it were not so difficult. Thanks.

Posted by 3.1415 8 years ago  |  last reply 7 years ago

Treo 700wx ideas

I have a few Treo 700wx phone with windows mobile. They are unactivated but are neat little computers. ANy ideas on wht to use them for? I'm having problems with the SD card working too. Any help wouuld be great.

Posted by stone3408 9 years ago

Caravan auto setup

I came up with an idea about making a small product for setting up caravans in terms of getting the corner steadies lowered, when the caravan is where it should be set up. I wrote a more fulfilling description here: Caravan auto leveling Anyone care to give a cost estimate for only the hardware? I can do the app-programming on my own :) Best Regards Neroes

Posted by Neroes 7 years ago  |  last reply 7 years ago

Scavenging Smartphone Touchscreens for DIY Projects

Hi All, I'm trying to figure out how feasible it would be to harvest a touchscreen from an old smart phone (say, a $35 LG on ebay) and integrate it into a DIY electronics project (eg. an Arduino project). Are the connections just hopelessly convoluted inside the phone or do many phones have fairly sensible screens that can be re-used? Thanks in advance for any insight. Sean

Posted by thebiglabowski 6 years ago  |  last reply 6 years ago

Which smartphone should I choose?

This is my first smartphone. My older mobile phone was used to normal things like SMS, calling. But at my new job I need something with access to mail or browser. Can you give me any advices?

Asked by marekwaman 4 years ago  |  last reply 4 years ago

A few Nokia smartphone ideas and questions

Is there any free way to use a phone as a bluetooth mouse or keyboard? Perhaps VNC? I saw a comment somewhere with the idea of using the phone like an optical mouse. Anything that can do that? Also is there a way to get maps that use cell towers to track your position without using the internet to load the map? (I'm on prepaid and wap isn't cheap) Know of any must have apps for a Nokia N72? Thanks in advance

Posted by LinuxH4x0r 10 years ago  |  last reply 9 years ago

BLE on a chip to smartphone connection?

I'm trying to use the BLE option on my chip to talk to my smartphone. Any ideas or suggestions on how to go about this? Thanks!

Asked by maddywantstocode 4 years ago  |  last reply 4 years ago

Tips on building/assembling smartphone, compatible with 32 bit software

Hello, I'm looking for tips about how one would start assembling a smartphone capable of running OS like windows 8 or linux. Basically what i want is 4 to 5 inch computer with touchscreen, a hdmi output and phone capabilities. I'm pretty unsure about everything but i'm really committed. Thinking about using the atom cpu from intel. what do you think? How should I go about the rest of the project. let me know your thoughts?

Posted by myefs 5 years ago  |  last reply 4 years ago

how do you replace the lcd screen on a t-mobile dash smartphone?

I have a t-mobile dash smartphone with a cracked screen how do I replace it?

Asked by al2009 9 years ago  |  last reply 9 years ago

How do I read epub on android?

I have both Kindle and Nook apps loaded on my Android smartphone. Not the greatest viewing area, but good enough in a bind, and not as bulky as either the Kindle or the Nook Color. Anyway, I've download a bunch of the epubs, and now I am unable to get them even recognized on the Android smartphone. Anyone have a suggestion?

Asked by bnfjw 6 years ago  |  last reply 6 years ago

Can I stuff a Bluetooth Headset into a Clamshell Phone? Answered

Posted about something like this about a month ago, and after some searching, I found something like this, (, (  It more than meets needs, but I was wondering on the feasibility of a DIY build that can pick up and end phone calls, and stuffing it into a clamshell phone case, assuming I could find/fab up an empty shell. Would it be my best bet to disassemble an earpiece, or try and recreate with an arduino variant, or some other third option? To be perfectly honest, I was looking for something to bulk reproduce and sell locally, maybe try a kickstarter or kitbash, or post an instructable for that matter, but anything in the right direction would help. 

Asked by moocow1452 6 years ago  |  last reply 6 years ago

Alternate use for old cell phones and smartphones

I have a box full of unused cell phones and smartphones. Some were the higher end ones of their time such as Blackberry Storm and HTC Touch. I would like to find ways to repurpose these as they are still good and have wifi and bluetooth capabilities. I was thinking maybe security cameras or robots that can be accessed via the internet to monitor my home and pets while away. Any ideas or links would be greatly appreciated.

Posted by Marcaine Art 6 years ago  |  last reply 6 years ago

Send GPS data from smartphon to module GPS connect to arduino

Hello, I want to know, If i can send data GPS from my smartphone to anathor GPS module EM-506 connect to Arduino or raspberry pi. Thank you

Posted by ibrahimenedis 2 years ago  |  last reply 2 years ago

Old Smartphone LCD as Head Mounted Display?

I've got an old HTC EVO 4G, otherwise known as the PC36100.  I'm attempting to create a 1 to 1 display to connect directly to my computer for a cheap Head Mounted Disply.  I've attempted to use various wireless RDPs.  However, the lag while attempting to do ANYTHING is horrible.  So I attempted to find an app that would connect directly to the phone via USB.  I found two.  Neither of which I feel comfortable dropping money on with such poor reviews and trials that don't work. So finally, I decided why not just use the LCD directly.  No messing with the hardware limitations of the phone at all.  So I took the phone apart.  I got right down to the LCD itself and found that it has a 17-pin input.  But, I don't really know much about it beyond that.  I can tell you that the cable reads: Career 06 94V-0 <->2 C36_FPC REV A I even have a picture of it.  I think it's attached.  If not, I'll fix that. Essentially what I want to know is, what do I need to make it be a fully working LCD monitor for my computer.  I know I'll need a module to convert the signal from what it is now to HDMI or VGA whatever the case may be.  I also know I need power to the screen.  But, beyond that, I don't know where to look.  I've tried looking up the cable information, but I'm not getting great results.  Any help in the matter, would be greatly appreciated.  Thank you.

Asked by seniorfrito 4 years ago  |  last reply 4 years ago

Portable Speaker from Android Smartphone

I have been reading a lot of DIY articles on how to build portable bluetooth speakers, and I'd like to take it a step further. I have at my disposal an old Samsung Droid Charge, a pair of Logitech computer speakers (powered), and some pioneer bookshelf speakers. What I would like to do is somehow use the electronics in the phone to provide all the necessary connections. Since the phone has bluetooth, a rechargeable battery, and an audio jack/speakers, I would think this is just a small matter of soldering and fitting everything into a cabinet. The problem is that I'm not an electrical engineer, so I'm probably overlooking something. If you have any ideas, or know if something like this has been done before, please let me know! EDIT: I've simplified my project, and I no longer need help with this, but if you do know something that would help, I'd still want to give it a shot.

Posted by Jantodec 4 years ago  |  last reply 4 years ago

How can I use a htc pantech smartphone that has been cut off?

How can I use a htc pantech smartphone that has been cut off and a balance owed on the account? Buy a new sim card? How to use WIFI only? Google and the web? thanks?

Asked by duhhuh 6 years ago  |  last reply 6 years ago


I have samsung s duos gt s7562 and the big problem is its battery. whenever i have to go out for a day long, i have to suffer for its poor battery back up. in market several power bank is available, but its costly. i want to make myself. i need atleast 3000 mah capacity power bank. So what should i do ? please tell me.

Asked by pprasara 3 years ago  |  last reply 3 years ago

Growing Veg indoor from your smartphone

Hey guys! My name is Aga, and I wanted to post an update about the project I shared a while ago. So we were looking for ways to make hydroponics fun, easy, interactive and beautiful so everyone can start growing the freshest food on earth even if they know nothing about gardening or have very little time and space.Of course we would rather garden in sun but for most of us it`s simply impossible. We are still early stages but at least now it looking good. haha! Check it out our new landing We are gearing up for a Kickstarter and if our vision resonates with you would love your support! Also: check out our blog - how far we have come from the initial prototype and here is me telling a bit more about the project straight from China: Thank you guys! Would love to connect with you and know what you think about the project Aga ps. this is not the spam, we are a bootstrapping startup and would love to share our solutions with the community!

Posted by Niwateam 4 years ago

how do you unlock a samsung 3g smartphone?

I have a brand new Samsung Galaxy S phone and I want to use it on another carrier. How do I unlcokm it?

Asked by jenkandk 8 years ago  |  last reply 6 years ago

Vibromotors and GPS turn by turn navigation

Hello, for one of my university courses I have to develop a prototype that give turn by turn signals to a person by means of vibromotors. First I would like to say that my background is mechanical and I have no idea whatsoever of electronics or software. My full Idea (Don't know if feasable) is to use the turn by turn information of a smatphone navigator that uses GPS (like the one of google maps) to activate one of two vibromotors, there would be one vibromotor on the right arm and the other on the left, if a next turn is needed to be made (info from the navigator) a signal will be send to the the motor on the left arm, It will vibrate and let the user know that this next turn needs to be done. I need urgent help since I don't know which components I may need and how to develop the software or anything I will appreciate any hint.

Posted by mcamiea 3 years ago  |  last reply 3 years ago

Will a project controlled through Bluetooth using a Smartphone be applicable for the RC Contest?

I'm making an electronics project which I can control using my Smartphone through Bluetooth.

Posted by Jonathanrjpereira 1 year ago  |  last reply 1 year ago

What kind of lens could I use to fix the broken one in a smartphone?

I have a bad smartphone, so I decided to build a night vision device out of it. I broke the IR filter inside the camera module, but somehow it looks like the camera lost all the focusing ability with the removal (or damage to lens) of the filter. It works almost perfectly on really close range (like macros 1-2 cm), but in other cases, like a room, or the street it is blury as hell. So I was wondering, if there is some lens that I could place in front of the camera, to fix this issue. Thank you very much for your help. :)

Asked by Sp1k33 2 years ago  |  last reply 2 years ago

iOS 9 makes the whole user interface zoom in. Any suggestions?

I have an iPod touch 5g and after I upgraded it to iOS 9 it has been buggy and frezes all the time. Among the newest and most annoying bugs is this zoom thing. I read many online articles abouta similar bug for iPhone up graders from 5c or 5s users, and one of them said it zoomed in 1%. I have considered downgrading to iOS 8 since I can no longer update the software. I like iOS 9 so if there are ANY suggestions or fixes, PLEASE tell me! Also, is jailbreaking an option? thank you :)

Asked by www139 3 years ago  |  last reply 3 years ago

Nrf24L01+ and Android

Hi, Is a simple way to communicate nrf24L01+ and Android Smartphone? Best,

Asked by Roberson JuniorF 2 years ago  |  last reply 2 years ago

Gamepad for a Motorola Droid Pro smartphone at all possible?

After seeing the Game-Gripper for various keypad smartphones, I wanted to have a gamepad for my phone as well. but i own a Motorola Droid Pro from Verizon and the screen and keyboard aren't right for some decent widescreen gaming. I dont think the game-gripper company makes pads for this kind of phone, so does anyone have any ideas on how i could either get or make a gamepad for this phone?

Asked by EngineerJakit 7 years ago  |  last reply 7 years ago

Wireless charging of smartphones anywhere within a 30 foot radius, without-pad !

Just read there is a 10W transmitter IC that has been developed to power a receiver IC collecting 6W of that energy... Both are ASIC chips that can operate and power power mobile devices up to 30 feet apart. Even though the RF energy is deemed safe. I would plan on using a Faraday helmet and maybe lead under wear when next I visit a coffey house.

Posted by iceng 3 years ago  |  last reply 3 years ago