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 ...
5
votes
2answers
927 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 ...
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 ...
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
836 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 ...
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....
1
vote
1answer
82 views

Receive data on the raspberry with c# using mono

I want to send strings between the raspberry and a windows computer via serial and with c#. This works from the raspberry to the computer as shown below. In the picture you can see that I have sent a ...
1
vote
1answer
123 views

Raspberry Pi 3 + USB data modem as a Wi-Fi Router

I have a USB data modem (Huawei E3131) and a RaspberryPi 3B+. I would like to use the Pi as a Wi-Fi hotspot. Pi connects to the internet via USB data modem and creates hotpsot for other devices. So, I'...
1
vote
1answer
522 views

Long distance file transmison

I want to send video files (approximately 70 MB) over a distance of 200 meters outdoors. I have some experience in using Raspberry pi and a lot of experience in Python and Java. I need some advice on ...
1
vote
1answer
308 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 ...
0
votes
2answers
112 views

Transmit music to multiple iPhones

I'm interested in getting a group of iPhones to receive a wireless signal to play music from another source in the same room, essentially acting as a radio receiver. Originally I imagined that this ...