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Questions tagged [data-transfer]

Data transfer refers to the movement of data from one medium to another. This is commonly achieved via the dd Unix program.

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12
votes
4answers
16k views

Why do the USB ports and Ethernet port share the same controller?

It is my understanding that the USB ports on the Pi share the same controller as the Ethernet port. This means if one was to use the Pi as a NAS, data transfer over the network would be restricted, ...
12
votes
2answers
11k views

Is there a way to automatically activate a script when a USB device connects?

I have a USB device (POV camera) that collects a lot of data a fills up its storage regularly. The goal is to write a script that: Listens for the device to connect via USB Mounts it as a storage ...
8
votes
1answer
4k views

Receiving files from android via bluetooth?

So I currently have an android application that is paired to my pi via the bluetooth dongle. Regularly in order to recieve a file, I have to go and manually accept the transfer to occur. Is there way ...
7
votes
1answer
7k views

Is this an OK way to transfer my 16GB SD card to an 8GB SD card (simple dd)?

FWIW, this is running on an Arch Linux ARM installation booting off a SATA, where I plugged in the SD card from the RPi. The original 16GB card was imaged from Windows using a Debian image. I had used ...
7
votes
1answer
777 views

Raspberry Pi zero bluetooth max transfer speed

What is the maximum theoretical limit for bluetooth transfer rate from a raspberry pi zero W to Raspberry pi 3 using RFCOMM? They both have bluetooth 4.1, which, on wikipedia saids can reach speeds ...
5
votes
1answer
513 views

Rasberry Pi zero and 3 bluetooth transfer speed is slow RFCOMM

I am trying to send a series of bytes from the Raspberry Pi zero W to the Raspberry pi 3 via bluetooth. Im using the PyBluez python package. I believe that Raspberry Pi Zero has Bluetooth 4.1 and ...
4
votes
4answers
568 views

Weather Balloon - How to Transmit Data? [closed]

I am thinking of making a weather balloon, but I have not found a way to transmit data between the ground station and the balloon. Do I have to buy a special part? And if I do, what is the cheapest ...
4
votes
2answers
8k views

USB bandwidth for the RPi model B+

I've haven't been able to find any conclusive data about USB bandwidth for the RPi model B+ As I understand, the bandwidth is shared between all 4 USB-ports (and the Ethernet) because they are using ...
4
votes
2answers
922 views

Cheap COTS transceivers that work with Raspberry Pi?

I'm looking for a way to get an app running on a laptop to communicate with an app running on a Raspberry Pi. This is a home/hobby project, so looking for inexpensive COTS hardware and open source ...
3
votes
6answers
4k views

Transfer a file from Raspberry to Mac

I have a Raspberry Pi 3 with Jessie Lite (terminal only) and I have to transfer a file which is on my Raspberry to a Mac. How can I do it?
3
votes
6answers
5k views

One-way file-transfer from PC to Raspberry Pi

I am looking for a way to send files from a computer to a rpi without the rpi being able to send anything to the pc and therefore possibly get access the computer's network. The rpi will be used as a ...
3
votes
2answers
93 views

Getting Information from one Raspberry to another

I've got 2 Raspberry Pi's: 1 with a LAN cable, which serves as a webserver 1 with WIFI connected to a circuit, that notices when a circuit is open. (basically a simple alarm) I want to send data ...
3
votes
2answers
3k views

NFS transfer speed Raspberry Pi 2 vs 3

I'm using an Raspberry Pi2 Model B as a NFS file server in my LAN. If I copy a 3.3 GB image file with "rsync -av" from an encrypted drive on my laptop to an encrypted USB drive on my Pi2 I get a ...
3
votes
2answers
7k views

Simple data transmission from multiple Arduinos (client) to Raspberry pi (server) wirelessly

I'm building a project where I have multiple Arduinos, each having a temperature sensor and a [input wireless transmission method here]. This data would be received by a controller, a Raspberry pi, ...
3
votes
2answers
580 views

Raspberry Pi Operating system transfer

I have run out of space on my raspberry pi and now have a larger SD card for it. I have lots of data on the old card and want to move it over to the larger one, but when I transferred the files, the ...
3
votes
1answer
5k views

Does Raspberry Pi 3.0 support HDMI 2.0 standard?

I am not able to see specific protocol version of HDMI (1.4 or 2.0) supported by RPI 3.0. Basically I want to take HDMI 2.0 output from RPI and provide it to my device. Also can we measure the rate ...
3
votes
1answer
5k views

How to receive data via bluetooth on Raspberry Pi and transfer it to USB port

I would like to know the way by which the data received on raspberry pi via Bluetooth from some other device can be transferred to a flash drive connected to the USB port of raspberry Pi.
3
votes
1answer
2k views

Disable samba encrytion on OpenElec

I finally got my Pi. The last days I tried a lot of MediaCenter-Distros and yesterday I decided to stay with OpenElec since it seems to be the fastest. Without any further configurations OpenElec ...
3
votes
0answers
59 views

Connect with VNC to RPI 3B+ via Bluetooth

I want to do VNC via Bluetooth between my Raspberry pi 3b+ and an android phone. Some forums say that bluetooth technology is so slow to connect VNC via a DUN network, but I was doing some research ...
2
votes
2answers
3k views

Transfer speed of download versus copying over the network

I have a Model B Raspberry Pi, attached to a wired network. It has Raspbmc installed. It also has an expernal USB drive for storage. I also have a laptop, attached to a wireless network. These two ...
2
votes
2answers
11k views

Rpi running XBian. How to transfer files quickly over the network?

I have a RPi running XBian (XBMC). It is connected to my home network through an ethernet cable. My laptop is connected via wifi. I have few HDDs connected to the Rpi via USB. My goal is to quickly ...
2
votes
2answers
131 views

Using /mnt vs /media for Transmission storage on external hard drive

I was wondering if it makes a difference to mount an external hard drive at /mnt vs /media. I'm making a Transmission seedbox using an RPi 3b+, and different tutorials are suggesting different things....
2
votes
2answers
1k views

Can I send a Text file using the Audio Jack of the Raspberry Pi 3

I am pretty new to working with the Pi. My project requires me to send data in ASCII format through the 3.5mm Audio Jack of the Raspberry Pi, which would, in turn, be taken up by some other device. ...
2
votes
2answers
1k views

Data collection from raspberry pi and send to computer (without using Ethernet or Wifi)

I use the Pi as sensor data collector and would like to to transmit the data back to software that is installed on my computer (and probably the software will instruct the Pi to perform some tasks, e....
2
votes
2answers
114 views

Trying to run a script from reboot and then send it to my PC automatically

I am trying to run the following script from reboot: from gpiozero import MotionSensor from gpiozero import Motor from picamera import PiCamera import datetime as dt from time import sleep camera = ...
2
votes
2answers
2k views

NTFS with high CPU usage

I'm using a RPi B+ with XBian and transmission, and an external USB 2TB disk, which has an external power supply. That disk is NTFS, and I've noticed that the CPU usage of the mount-ntfs process is ...
2
votes
1answer
3k views

Mount.ntfs using 99% of my cpu with Transmission

I am running Transmission-daemon and whenever I download something the CPU usage spikes to around 99%. I have to use NTFS because of my many windows machines. I would prefer not to format because I ...
2
votes
1answer
68 views

How to setup pi to save files on PC directly via USB?

So my Pi has very little processing power. I need to use my PC for it. So how do i make a quick automatic transfer of files generated in a folder from Pi to PC (doing it over FTP might be a way but is ...
2
votes
1answer
563 views

Transmit/Receive binary data from one RPi to another

I am looking for a way to send and receive data from one RPi to another through binary means. The end goal of this is to communicate through optical means (LED -> photodiode), which only accepts ...
2
votes
1answer
970 views

Raid 1 and Owncloud

I have done a Raid 1 system using 2 external HD connected to the Pi2, now I want to install owncloud in the raspberry using the raid to avoid losses, using the external HD connected to store the data. ...
2
votes
1answer
87 views

If I mount a SD reader (for external storage) will I be able to access any SD card in the same way?

I think this may work, but I wanted a second opinion before I go off and buy all of the parts! I am working on a data logger where it would be useful to use a second SD card (not the OS card) to ...
2
votes
3answers
1k views

Transferring data from Arduino to RPi, Missing data

I had hooked up the Arduino Uno to the RPi through USB connection. The Arduino contains a light sensor and it will transfer data to the RPi. The baud rate used was 115200. This baud rate was used due ...
2
votes
0answers
198 views

File Transfer Failed : From RaspberryPi3 to My Mobile on Bluetooth

File Transfer Failed : From RaspberryPi3 to My Mobile on Bluetooth I have a Raspberry Pi 3 and the following command complete. $ sudo apt-get install pi-bluetooth $ sudo apt-get install bluetooth ...
2
votes
0answers
878 views

Send Matlab data to Raspberry USB port [closed]

I would like to connect to the USB port of the Raspberry Pi with a device (for example: a USB sound card), and send data from Matlab to the Raspberry Pi's USB port in which the USB device is connected....
1
vote
2answers
972 views

Faster Way To Transfer Video FIle

I have a Raspberry Pi with Raspbian installed in it, and I would like to receive video files on My Ubuntu machine from Raspberry through a switch via Ethernet(CAT5). Note: I can connect both devices ...
1
vote
2answers
2k views

Get Data from Pi without Network

When we go on vacation, I want to take a laptop and a Raspberry Pi with me to monitor the outside temperature. I have a constant power supply, however there isn't a network or internet connection. ...
1
vote
1answer
94 views

Handle data while filming with rPI [closed]

We will buy the BMPCC4k (This means 500GB/hour on a ssd), as we are a low/no-budget production, we can't have someone handling data. I had the idea to use a rPI3+ to use for this. But I'm not sure if ...
1
vote
1answer
5k views

Digital data reading using GPIO

I want to do an experiment using Rpi and Arduino. Basically Arduino will send a digital data to Rpi's GPIO. This question says how to do it using USB. I want to read it and display in the console. ...
1
vote
3answers
564 views

transferring files from remote servers to local

I am working on a project for which I'm using 30 Raspberry Pi (B) camera modules in the same network. I can take pictures from all of these simultaneously and now I want to copy these pictures from ...
1
vote
1answer
87 views

PedalPi, lag when piping in data

I am modifying a pedal pi (link here). I split the input program from the output program. For simplicity right now, that all it does. The standard out from my input program is being fed to the ...
1
vote
1answer
492 views

cannot connect to pi via sftp filezilla on mac but ssh via terminal successful

I am fairly new to command line and rPi, all previous experience has been desktop & web apps and have fallen at a major hurdle with my new Pi. As the title suggests I am struggling to sftp into ...
1
vote
1answer
54 views

No network found on new Pi 2 but works fine with B+

I have two raspberry pis. A model B+ and a new series 2. I have a home network on a windows 8 machine I have 3 external drives attached to the Pi, and with the B+ it works fine, I can transfer movies ...
1
vote
1answer
32 views

Share data between different

I'm building a floor heating control with raspberry pis. Until now I have two Pis working, one which controls the valves via relays and another which works as "central" with a webinterface to adjust ...
1
vote
1answer
74 views

Slow Transfer Speeds When Multiple Raspberry Pi Zero Ws Connected Over WiFi

I'm working on a project that uses the pi camera module and 35 or more Raspberry Pi Zero Ws to take pictures and send them back to a central computer. Everything works fine with just 1 Pi connected, I ...
1
vote
1answer
4k views

Multiple Raspberry Pi communication

If I have four Raspberry Pi acting as different sensors and I want to communicate their sensor data to a central computing device located in the same physical space, what type of network communication ...
1
vote
1answer
229 views

Send encoder data to Mobile app using bluetooth

I have a requirement wherein I need to measure the distance travelled (Real-time) and display it on an app on a tablet present inside that moving vehicle. I have a setup wherein I have connected the ...
1
vote
1answer
4k views

Can I transmit I2C over RF?

Is it possible to transmit and receive i2c data wirelessly (not via wifi or ssh) I want to use thumb stick joysticks to move motors wirelessly, at the moment I have two connected to the i2c ports ...
1
vote
1answer
301 views

Clone raspberry sd from 32 to 16 GB

I have openelec on my Raspberry Pi board installed on a 32 GB microsd but it occupies way less space so I'd like to move the whole OS to a 16 GB microsd, I tried to clone using win32diskImager but I ...
1
vote
1answer
2k views

Sending Data from Raspberry Pi to Hosted Node.JS server/Web page?

Is this possible? Basically I want to read sensor data from the raspberry pi and send to (Via wifi) a Node server I am running, the data will be displayed on a webpage ran by Node (using JS/etc... to ...
1
vote
1answer
1k views

RF Transmitter and Receivers for Raspberry Pi

Which type of RF transmitter and receivers can be used to transmit video over the range of more than 500m. ?