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I'm developing an Android application that needs to communicate with a PC in the easiest possible way. preferably using USB, headphones jack or Bluetooth, this should be a two way connection.
I assumed USB would be the simplest, but got quite lost with USB Host/Accessory and am not even sure anymore that this is the way to go. tried usb-serial-for-android but couldn't find any example of using it with a computer, and the code as it is never recognized my computer as a device.
Is there any Right Way (tm) to do this? can someone share some sample code? everything I've found was for Arduino boards, which I don't have.
I'm not looking to transfer lots of data, but I need the latency to be as little as possible.
Any hints? Is USB isn't the way to go? I read that using the headphones jack is quite complicated and that BT has too many different implementations, but didn't really try these two other options.
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I'm trying to write and app to control 3 motors using my phone wirelessly and I'm not entirely sure what a simple way might be.
I was thinking to just send an RF signal, but the internet seems to agree that that is not feasible to do so. I was thinking of Bluetooth/wifi as well, but I would like to see if there are any other options to transmit signals from my phone.
I don't want to deal with establishing a bluetooth connection every time I want to use the motors, as for wifi I would prefer something that doesn't use the internet. Am I out of luck?
Also, I'm just getting into this type of stuff, so I apologize if this question is too obvious for some people, but I couldn't find an answer to it anywhere I looked, which is why I'm here.
All help is appreciated!
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I had IOIO board and went through DIY Samples, like controlling LED, DC motor, Servo motor.. it was very interesting, and I want to design a toy remote car which should be controlled by an android app, There are many android boards available like Hackberry a10, Arduino, Raspberry Pi..etc, as I'm a newbie to hardware domain, I do not know much about boards. So kindly update me on Which one is the best and versatile?, I'm going to use Android studio for the development, not the processing. Is there any other protocols available for transmitting the signals other than BT, IR, and Wi-fi.
You can use Arduino, which provides a wide variety of hardware to connect with. Please go through arduino store . There are many samples available for Arduino. Please refer this may help you to get started.
Best is a tough question, but if you are a hardware newbie, the easiest system to get started with is probably the LittleBits Cloud pack. Once you've prototyped what you need, you can replace it with something more practical in terms of form factor.
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I'm trying to make an application that connects devices over the same WiFi. I'm fairly new to Android development, but I have basic Java knowledge. Now I want to know if my approach is correct?
My approach is as following: I first connect two devices together through WiFiP2P (this part of the code is finished). Next one device creates a SocketServer. That device will send his IP through WiFiP2P to the other device so the devices can now join.
Thanks in advance!
My understanding of WiFiP2P is fairly limited, but I'm assuming that it is trying to be what Bluetooth failed to be.
This approach sounds fine. There is even a page on the offical documentation about it.
My only thought is that you should add protection against malicious users performing spoofing attacks, if that is relevant to your app.
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I have 2 android devices and I need to communicate between the two using wifi to send and receive data. What is a reliable method to send/receive data over a private wifi signal, preferably without rooting (I already know how to do it if rooted, but I really don't want to root my phone (I'm rooting my tablet)).
I don't mind writing a lot of code myself, just looking for a method or class to send data and receive it over wifi, with examples.
Try to refer to the official Android developer site to learn more about the WIFI Direct API. This is the official documentation and you can attempt the demo to get started.
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I have been trying to know about android driver development. I know driver development is not an easy job but I'd like to learn. Is there any tutorials for that or any simple examples??
I'm assuming you mean drivers for the Linux kernel used by Android? I'm fairly sure most of the Android system interfaces with the Linux kernel to access hardware. For example, it relies on the framebuffer device for display, which is powered by a Linux framebuffer driver.
In this case, you need to root your device to get the proper privileges. Next, you need to determine the version of the Linux kernel, then obtain a copy of it.
There's a lot of documentations on kernel development, and plenty of code to look through, but it's not an easy task, and you probably won't want to do it. If you have all of the necessary knowledge of the hardware, it might be a possibility.
edit: Ah, here; this might help you a bit: http://source.android.com/porting/display_drivers.html (there should be more information on other drivers from there on.)
What about following a linux recipe?
http://www.freesoftwaremagazine.com/articles/drivers_linux