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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38 views

Why Raspberry Pi Zero W is missing to log data constantly every second?

I'm doing a project where I want to record IMU (Inertial Measurement Unit) readings. I want to use pretty high sampling frequency and I'm using Raspberry Pi Zero W to send PWM signal of 800Hz to ...
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45 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'...
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1answer
40 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 ...
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35 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 ...
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58 views

Data transfer from Raspberry Pi to Microsoft Azure Cloud

I am trying to send the data measured by my Smart Plug into the Microsoft Azure Cloud so that I can visualize it there later. I have a python program (the original is from BeardMonkey https://www....
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79 views

Read data from a balance via RS232 port using rs232 to usb converter cable in rapsberry pi

I am a beginner to this, I have a balance (scale) that I need to read the data (weights of material) from. Data will be read every 10 seconds and I have looked up RS232 codes in here and utilised ...
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28 views

5v pin usage for 433mz transmitter receiver

I've bought a 433mhz transmitter receiver and I made a check on model SODIAL(R) 015274A2 the strange is in two links we have 2 differente specs, one says: https://www.amazon.com/SODIAL-433Mhz-...
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2answers
217 views

Uploading a file via SFTP from a raspberry pi to a remote server. From the command line

I need to upload files from a headless raspberry pi to a remote server. A simpfied example: The file to transfer /tmp/test.html Remote location: something.com Port 22 Username: user1 Password: ...
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1k views

Raspberry Pi with USB 3 (or 3.1) and enough power to use 2 drives

I bought a new camera which writes a lot of data onto SSDs, which I then would like to transfer onto HDDs. I thought about using a Raspberry Pi, but I was told it doesn't have enough power for a ssd ...
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1answer
81 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 ...
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1answer
44 views

Wiring on RPI3 when connecting two peripherals - microcontrollers simultaneously

I am currently having an ADC(MCP3008) connected to a rpi3, using the following wiring map, in order to read data from analog sensors. MCP3008 -> RPI3 VDD -> 3.3V VREF -> 3.3V ...
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2answers
81 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....
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1answer
38 views

Read micro sd card on PI zero

I have been searching for hours for a way to connect my pi to a computer and read/write data to the micro sd card. Is there any way to do this, and if so how?
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1answer
290 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 ...
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0answers
54 views

Data acquisition using DSO 2150 (Hantek, Virtins, etc.) in Raspberry Pi

I have Virtins 2815H which is a DSO based on DSO 2150, I would like to real time record a signal around 1 MHz using it and process it in Raspberry Pi. I have searched a lot about the data comm from ...
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2answers
503 views

Transfer files from Raspberry Pi Zero W to PC over USB

I would like to transfer files from Raspberry Pi Zero W to PC over USB interface. Is it possible? My idea is to first use Pi Zero standalone to run an application, which generates some files on the ...
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1answer
217 views

Sending data to and from raspberry pi 3 wirelessly using wifi / sim network data

I'm looking for advice regarding sending and receiving data between raspberri pi 3 and other devices assuming everything has internet connection. The data I'm looking to send doesn't have to be ...
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3answers
2k views

Connect RPi to PC with direct Ethernet? [closed]

I am trying to transfer files from a PC to a RPi but I can’t find a way. Please help. Explanation: the PC is actually a Windows device on which I can’t make any installation or configuration. This ...
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1answer
79 views

RPi, php, python and string lengths

Are there limitations on the length of strings passed to php by python in a service? I had a php service running that retrieved data from a python script. Worked well. I decided to add data from ...
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1answer
764 views

Sending Rpi local data to an online Server (MySQL

I'm using a raspberry Pi zero w with temperature sensor, i don't have a continuous connection that's why i'm saving the temperature data on a local MySQL database using the following command <?...
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1answer
109 views

How can I receive sensor data from my raspberry pi when it is far away from any wifi?

Let's say I want to use a raspberry pi for a research project. The raspberry pi would be placed in a secure case(power has been taken care of and is not an issue). However, it will be in the middle of ...
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1answer
98 views

Raspbian Stretch - Data Usage Optimization

I have just installed clean Raspbian Stretch Lite on an Raspbian Pi Zero W. Only installed two applications (Remote terminal and mqtt with connection to google cloud). All applications was updated/...
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1answer
62 views

Share internet connection with mulitple Pi's

Let me first start by saying I am very new to this stuff, only about a week into looking at all the options out there. From what I have found Raspberry Pi will be what I need for a project and I know ...
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0answers
193 views

Send Data using Raspberry Pi's Serial Number

Actually I have many Raspberry PI 3 Model B and I am able to find Serial Number of my Raspberry PI using Python script. But I can't able to send data from Cloud to specific Raspberry PI using it's ...
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1answer
1k views

Communication between Raspberry Pi and STM32

I am working on an ECG signal processing project to detect heart arrhythmia in real time and notify the doctor via SMS , initially I was using a raspberry pi 3 b+ for the processing an AD8232 ECG ...
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1answer
553 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 ...
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1answer
421 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 ...
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0answers
234 views

How to collect data from server to LibreOffice Calc

I have Mosquitto and Node-Red installed on my Pi 3. I want to be able to log the data into a spreadsheet of some sort. Is there a way to do this with Calc or a spreadsheet of some sort on the Pi? The ...
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1answer
304 views

How to stream data to device using adhoc connection?

I have a Raspberry Pi Zero W running Raspbian OS which is connected to a few sensors. I can broadcast the sensor data from the Pi to my Android tablet for display. I've written a UDP socket/client ...
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3answers
1k views

transfer files between raspberry pi-2 to pi-3 without using bluetooth

I have a pi-2 and a pi-3 and I am trying to transfer some files from the pi-2 to the pi-3. Is there a way besides using Bluetooth to do it?
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1answer
140 views

SSH File Transfer Fails: No Route to Host

I have a Raspberry Pi 3 fully set up. I can access it via SSH and it is completely configured. When I copy files with FileZilla via SFTP everything is okay, but when I copy files with ES File ...
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1answer
170 views

Recover files from RPi after doing chmod 777 / -R?

I know, I'm an idiot, I have no backups, let's move forward. Is there any way I can get the files off the SD card? I did sudo chmod 777 / -R and can no longer connect to the device over SSH or SFTP.
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1answer
473 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 ...
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1answer
3k 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 ...
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1answer
215 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 ...
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1answer
77 views

How to check for sd and transfer files automatically

I was wondering how I could check for an sd card on my pi and once one is found it automatically transfers files from it to a usb/sd/hard drive.
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2answers
109 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 = ...
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1answer
117 views

limiting the file accessablities while using FTP

I am new to things like FTP and such. I have a data collection program on my Pi. I need this data to be extracted by a PC with in my network, but I do not want them accessing all the other folders. My ...
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1answer
4k 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. ...
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1answer
194 views

How to send and receive data between RPi and PIC33E microcontroller via USB?.

This is my first project with PIC33E, and both the devices will be connected by USB only. Rpi will have a User Interface (written in Python) and which will enable the user to send and receive data. ...
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4answers
510 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 ...
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1answer
4k 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 ...
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2answers
176 views

What is the best way to send data from my RPI to my PC?

my pi reads data from sensors and I want it to send the data to my pc, and whenever the pi reads a new value, it must send it to the pc automatically and save it in a text file and appends it to it. ...
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1answer
59 views

Problem with too much data in txt file and database

Hi guys once again I got serious problem with my project. I wanted to make a system which register measurement from tilt sensor(which can be high or low) after that it is saved in txt file and then ...
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4answers
800 views

What's the smartest way to send data from my pi to my PC?

Here's the deal: I've connected a small RFID reader module (RDM6300) to my Raspberry Pi 1 Model B. That means I've taken up one 5V pin, one ground pin and one RX pin. A python script reads my RFID tag ...
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6answers
3k 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?
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1answer
2k views

Does RetroPie's automatic USB ROM transfer copy/overwrite previously copied ROMs?

If I add a few more ROMs to my USB drive and plug it in, is it going to copy the entire collection again? If so, does it overwrite the files or keep them all? I am using a pi-3 with the latest version ...
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2answers
959 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. ...
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3answers
2k views

trying to get SSH over USB to work (Raspberry pi Zero)

I followed several steps to get an SSH over USB working. I followed the steps posted here. My Raspberry Pi Zero is connected with a standard micro USB cable to my desktop computer (Ubuntu 16.04). ...
3
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2answers
6k 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, ...