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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Raspberry Pi 4 TSL2591 vs BPW21 speed. Which is better?

I am trying to make a visible light communication (something like LiFi) on my RPi4. I already have TX part completed, but I have a few problems with RX part. Firstly I was trying to use ...
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40 views

Is there a way to use the USB-C port as power and for something else?

What I mean by something else I mean connecting my external ssd (uses usb-c) to my pi rather than the usb ports as those are slower. I have read on usb-c Port of RasPi 4 used for anything else but ...
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58 views

Slow NTFS write speeds, on external USB drive?

I have my 4GB Pi4 set up with automount and have an NTFS formatted USB3 hard drive, connected via the USB 3 port. Looking at the driver via the mount command: /dev/sda1 on /media/Seagate_sda1 type ...
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2answers
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How would I send files to Raspberry Pi through bluetooth without touching the Pi?

I want to be able to send code files to my Raspberry Pi Zero W from my Mac or Android phone, without needing to go do anything on the Pi itself. I was able to pair and connect to my devices with ...
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Pi Zero with Co2 sensor and display

First post from a noobie - Please be kind :) Background: I already have Pi 4b loaded with Raspbian OS lite and home assistant supervised in our greenhouse office. This works perfect. In our ...
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2answers
106 views

how to transfer file between two RPI over Wi-fi?

Hello I received two Pi 4 for Christmas. It is the first time I use RPI, I have succeeded to turn them on and to connect them to my local wifi ! I am a a beginner and I wanted to start with a simple ...
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77 views

how can i get real time data from the raspberry pi sensor to my android app?

how can I display real-time data from the raspberry pi heat sensor into my android app made with the android studio (not an android app build on a raspberry pi ) every time the sensor measures a ...
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1answer
843 views

Does the Raspberry pi 4 have USB 3.0 or 3.1?

I've seen many, varying reports on the natives USB ports on the Raspberry Pi. Some say that the Pi has 3.0 ports, while others say that the pi has 3.1 ports. In many applications, the distinction is ...
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355 views

Raspberry Pi 4 local network for territories without access to the internet

Is there a way to create/enable a local network between a Raspberry pi and mobile devices? I am thinking of a project which will use the Raspberry pi to host data which can be accessed using multiple ...
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Can I connect more than one sensors to a raspberry pi wirelessly [closed]

I am getting a raspberry pi for my birthday and decided to do a little research. While following a few tutorials I noticed that they all are using different raspberry pi machines for each project. I ...
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37 views

How to connect raspberry pi to cellphone tower and communicate with it by Android phone [closed]

I need to communicate to my raspberry pi with my android phone via cellphone tower. For example,a raspberry pi is connected to nearest base station, if i enter into that base station's range i want to ...
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1answer
135 views

Stream data between load cell or HX711 to RPI

I built a scale with my RPI using a standard load cell and HX711, is there a way to stream the data from the load cell to the RPI either from the HX711 or from the load cell itself to the HX711? The ...
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101 views

Raspberry Pi 4, terrible performance at the USB3 port

I have installed my Raspi 4 freshly today (latest Raspberry Pi Os). The SD Card performance is kind of okay (~40 MB/s write). However the USB3 performance is terrible. I have plugged in a mobile ...
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2answers
37 views

Importing raspi data from sd card to computer

My sd card with raspbian installed is not displaying the data stored on it, such as files in the home directory etc. Inserting it into a computer causes the RECOVERY drive to show up, which looks as ...
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1answer
162 views

how to transfer file to Windows 10 PC using SFTP command?

I'm trying the following command from the Pi to the PC (169.254.112.124): sftp pi@169.254.112.124:/C:/Users/Desktop/testtest.xml But I get this error: ssh: connect to host 169.254.112.124 port 22:...
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2answers
179 views

Hosting LAMP on SD-card in RPi now - would like to move whole database and website to External USB 3.0 SSD

.I am hosting this website on the RPi 4 - 4GB Ram model. I'm guessing the google PageSpeed insights ranking score is kinda ok right now (it ranges in the middel with a score of 56) - try and test it ...
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Send data from PC to RPi although theyre not in the same LAN

i'm planning a school project that should represent a two-factor authentication. I already made a user interface to type in information to log in like email address and password. My plan was to ...
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1answer
521 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 ...
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49 views

How to receive serial data with c# on a raspberry with mono [duplicate]

Hello I want to make a program for the computer and the raspberry, this program must ensure that the raspberry and the computer can communicate via serial. I have already found a code that does this, ...
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1answer
103 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 ...
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492 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 ...
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1answer
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Bootable USB or Pendrive are not detected in Raspberry pi 3B+ for data transfer or format

I want to copy a file raspberry pi 3B+ to my Desktop machine. I had plugged the USB pen-drive in raspberry pi 3B+. But pen-drive is not recognized. Did I missed anything as in case of pi? Thanks in ...
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1answer
297 views

How to connect a geophone to RaspberryPi?

I'm a seismic geophysicist and would like to attach a geophone - which is basically a transducer - to any type of RP. The types and costs of geophones are both variable and extensive (in some cases). ...
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1answer
43 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 ...
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1answer
86 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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1answer
1k 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
158 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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1answer
316 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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301 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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2answers
2k 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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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
95 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
54 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
297 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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59 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
871 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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95 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
1k 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
744 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
5k 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
126 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
2k 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
160 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
70 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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220 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
3k 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
1k 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
796 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
436 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
471 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 ...