Exchanging data between raspberry pi and mobile

Question

How can I send files from my mobile phone to raspberry pi using wifi or any other network?

you may use mqtt to do all kinds of communication between different devices — waqaslam, Oct 27 '16 at 13:14
I want to send files from my Android phone to raspberry pi and that file has to be displayed on the led screen connected to the pi. Can I do this using wifi? Or mqtt? — Vrishab ML, Oct 27 '16 at 13:15
don't confuse wifi with transfer protocol... wifi is a communication link... upon wifi you are supposed to use some sort of protocol to perform actual data transmission and for that purpose i suggested mqtt as it's simple and flexible. If you want, you may also use tcp socket to perform data transmission, but then it's upto you — waqaslam, Oct 27 '16 at 13:18
Okay. So I can send files through mqtt from my Android phone to raspberry pi 3? — Vrishab ML, Oct 27 '16 at 13:20
yes, but you need to write server/client implementations, where your device acting as client and raspberry-pi as server... also make sure to install mosquitto (mqtt broker) on rpi — waqaslam, Oct 27 '16 at 13:20

score 2 · Answer 1 · answered Oct 27 '16 at 13:25

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You could setup a connection through sockets. This would require you to have a wifi dongle for your raspberry pi.

You could start with reading Android sockets and basically any tutorial you can google (Example)

answered Oct 27 '16 at 13:25

Tim Van Der Kuij

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How can I do it using only wifi? – Vrishab ML Oct 27 '16 at 13:32
You want it to only work if your mobile phone has wifi connection and not when you are on mobile data. This is what you mean right? – Tim Van Der Kuij Oct 27 '16 at 13:40
No. I want to be able to send data from mobile network or wifi. I just want to send files to pi and it has to be displayed on the screen. – Vrishab ML Oct 27 '16 at 13:42
Anyway, [This](http://stackoverflow.com/a/35995735/5786565) is something you might wanna take a look at. @SaumikBhattacharya is showing how he can check whether or not you are on wifi or mobile internet – Tim Van Der Kuij Oct 27 '16 at 13:44
If either wifi or mobile internet is fine, then you don't need to worry about it. you only would need to add a permission to your AndroidManifest.xml '' – Tim Van Der Kuij Oct 27 '16 at 13:45
Thanks for the answer – Vrishab ML Oct 27 '16 at 13:46
Thanks. By the way I'm doing a project on IOT called "Digital notice board" using pi. Any ideas? – Vrishab ML Oct 27 '16 at 13:47
Could you specify the question a little bit more? – Tim Van Der Kuij Oct 27 '16 at 13:58
The pi is connected to a led screen. And i need to send data from my Android phone to raspberry pi which has to be displayed on the screen. – Vrishab ML Oct 27 '16 at 14:00
Specify "Any ideas". It could be a lot of different things. "Any cool ideas i could add" , "Any ideas on what i could use to accomplish a given goal" etc etc – Tim Van Der Kuij Oct 27 '16 at 14:05
You could use something like Phidgets to measure data. These result can be send with and displayed on the LED screen. Even a camera would be cool. Show a live stream :) – Tim Van Der Kuij Oct 27 '16 at 14:12
Thanks for the idea. – Vrishab ML Oct 27 '16 at 14:13

score 0 · Answer 2 · answered Oct 27 '16 at 13:30

0

i used a server in between for communication (xmpp protocol between server and mobile)

Followed this code https://github.com/upnpforum/uca-android-controller/tree/master/controllerapp/src/com/comarch/android/upnp/ibcdemo

answered Oct 27 '16 at 13:30

Rissmon Suresh

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Can we send video and audio files using this? – Vrishab ML Oct 27 '16 at 13:44
if you want to send image/videos then solution i given is not ideal to use – Rissmon Suresh Oct 27 '16 at 13:53
Thanks. By the way I'm doing a project on IOT called "Digital notice board" using pi. Any ideas? – Vrishab ML Oct 27 '16 at 13:58

Exchanging data between raspberry pi and mobile

2 Answers2