Questions tagged [usb]

Questions relating to the Raspberry Pi USB ports and specific Raspberry Pi USB devices and device interaction.

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25 views

Cannot log in to raspbian buster with default username and password

I have an issue logging in to my new raspbian buster (raspbian 10 Raspbian Buster with desktop and recommended software) using the known default {pi, raspberry}. My keyboard is in English and I have ...
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17 views

Can't connect MIDI Keyboard to Raspberry Pi

I'm trying to connect my Midi Keyboard, which works perfectly fine in Windows, to my RPI 3B+ running Raspbian. I'm connecting using the USB output of the keyboard. When running dmesg I get this: [ +...
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28 views

USB not working on Raspberry Pi4 using Raspbian, first boot

I've just bought a new RPi4 2GB and I'm having issues connecting a keyboard to it through USB. I've used this keyboard with previous models of the Pi and it's worked fine and checked it and it's ...
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1answer
21 views

Power saving for raspberry pi2 model B

I have a raspberry pi 2 Model B and I want to disable the power to ethernet and USB hub port, I try using hub ctrl. c command, and it doesn't work. Is this happening because of the limitation of ...
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23 views

4 HDMI display via USB

I want to use 4 HDMI small display modules on raspberry pi 4, but if i supply enough power to power on 4 display to raspberry pi, will display modules work well? Those 4 display modules will act as ...
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1answer
51 views

TTL serial connection doesn't work

I am trying to connect Raspberry Pi with a TTL serial cable.I couldn't get it to work. My Debian packages are up to date.I activated serial and gpio connections via raspi-config. I try this command ...
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47 views

Zero W not recognized as USB device by usbboot

I'm trying to write some bare-metal code for a Zero W but I lost my SD card so I'm trying to boot from USB. I've got everything set up with usbboot however when I plug the Pi in to the USB port, my ...
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1answer
485 views

Boot Raspberry Pi 4 from USB

I have tried to boot a Raspberry Pi 4 from an SD card, and it is working fine. But when I was trying to boot the Raspberry Pi 4 from USB, it was not booting up. Is it possible to boot the Raspberry ...
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1answer
31 views

Part No. of Micro USB connector used in Raspberry Pi Zero

I would like to know the part No. of micro USB connector on-board the Raspberry Pi Zero & Zero W. As per the schematic available under official Raspberry Pi documentation, it is listed as 690-005-...
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36 views

Controlling multiple arduinos from a pi 3b+

I'm working on a robotics project where we need to control 2 motors, read data from 8 ultrasonic sensors, display a 2 digit number on 7 segment displays, drive servos and a few more things. The ...
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1answer
91 views

How make Raspbian boot faster from USB-stick (without SD-card) on a Raspberry pi 3 B+?

I already did things like disabling WiFi, Bluetooth, etc. but my gut tells me, there should be some USB-specific settings, which can make the pi boot faster. I am interested in these settings. My ...
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29 views

Strange noise spikes in recorded sound

I have two RPI: pi2 and pi3b+, both have an identical usb soundcard attached, identical microphones, they both have the same DIY shield around microphone cable and soundcard and it is grounden in the ...
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26 views

Disable Specific USBs with the Terminal?

I need to disable one specific usb device one way or another with the terminal, disabling the device itself or disabling the usb at which said device it's connected Also a way to enable them again I'...
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79 views

USB Webcam Problem

My webcam is not working properly, i have even put it on a powered hub. I have a new raspberry pi 4 fswebcam -d /dev/video0 image.jpg --- Opening /dev/video0... Trying source module v4l2... /dev/...
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1answer
78 views

Pi Zero USB On The Go cannot connect

There are several posts that say a Pi Zero can be connected to another computer with USB to enable networking (e.g. Linux host, Windows host or https://www.circuitbasics.com/raspberry-pi-zero-ethernet-...
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2answers
81 views

Read USB RFID via tty1 in Python very unreliable

I have an RFID reader (Neuftech USB RFID Reader, https://www.amazon.de/Neuftech-Reader-Kartenleseger%C3%A4t-Kartenleser-Kontaktlos/dp/B018OYOR3E) that attaches via USB. Via /var/log/syslog I found out,...
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Raspberry Pi Raspbian - check LTE USB modem SIM card phone number

I have LTE USB modem attached to Raspberry Pi 4 with Raspbian installed. LTE modem was configured automatically and Internet connection is up. I don't remember SIM card phone number. How can I check ...
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1answer
149 views

Unable to work around Raspberry PI 4/4GB USB issue

I've recently acquired a Raspberry Pi 4/4GB, which I'm planning to use in place of a failed motherboard/GPU in an old 24" iMac, re-using only the display, PSU, fans and speakers. Initially, I'm at ...
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68 views

USB ports heavily lag or disconnect completely

We have a Raspberry Pi 4B running Raspbian as a lightweight management console. (A cost effective way of managing network devices over RS232 and such.) I've noticed some problems with the USB ...
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0answers
12 views

Error opening InputStream USB Microphone and Raspberry PI3B+

I am trying to use a USB microphone with python sound device and raspberry pi3B+. When I execute the script in the console typing $ python3 sound.py it runs and records all ok. But when I try to ...
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0answers
58 views

Getting ftdi_sio ttyUSB0: failed to get modem status: -32

Iam using Raspberry pi 3b along with Xbee and Sixfab 3G/4G base sheild. getting ftdi_sio ttyUSB0: failed to get modem status: -32 usb usb1-port1: disabled by hub (EMI?), re-enabling... and also ...
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1answer
104 views

External HDD disconnects while transferring a large file 100% reproducibility

My setup is: Raspberry Pi Model 3B V1.2 No USB HUB External 3.5 inch HDD: Powered Enclosure: Sabrent USB 2.0/ESATA to 3.5 Inch IDE or SATA/SATA II Aluminum Hard Drive Enclosure Case with Cooling ...
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30 views

Communicating with TPI synthesizer using pyserial

I have a raspberry pi 3b+, and I am trying to communicated with a TPI synthesizer model 1001-B. I want to use Python and specifically the pyserial module to communicate with a serial port - i.e. the ...
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1answer
79 views

Connecting a USB Device by GND, VCC, RX, and TX

I have a few basic devices that utilize a mini USB port. Rather than plugging them into a USB hub, is it possible to connect them and have them recognized by a Raspberry Pi through the four GND, VCC, ...
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21 views

Having a machine save data on Raspberry Pi 0 W and accessing it over WiFi network

This is my first attempt at creating something with Raspberry Pi 0, so I am very sorry if this question does not meet the standard Stack Exchange etiquette. I have a production line with a USB port. ...
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1answer
48 views

How do I set up an external drive as a network share using the Raspbian GUI?

Using the GUI, and only the GUI, how can I share a USB drive on the network? I'd prefer to use Samba since my clients will be Windows. Using Raspbian Buster (current version) or later. For ...
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1answer
52 views

Continuous data acquisition from ADC at around 10 MSPS

I would like to continuously stream data from an ADC with 12 to 16 bit to a Raspberry 4 at around 10 MSPS. Since the Raspberry is not realtime, I'm assuming I need some sort of FIFO buffer as ...
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2answers
51 views

Disable LAN Interface duirng boot

Is there any option to disable LAN and USB interfaces during boot. I found options to disable the interfaces using the Following command. echo 0 | sudo tee /sys/devices/platform/soc/3f980000.usb/...
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4answers
2k views

Performance differences running Raspbian from USB flash drive versus SD card

I want to run Raspbian from a USB flash drive on a Raspberry Pi 3B+. What would be the performance difference in doing so, as compared to running Raspbian from an SD card?
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23 views

User does not have permissions to directory

My raspberry 3 is running amule using amule user, but I cant set the directories I want for incomings and temp files in a pendrive. Each time it goes back to the default directories. I did sudo chmod ...
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1answer
56 views

USB and ETH drop

I have a Raspberry Pi 4 running the latest buster. Had an event where the USB & ETH (no wifi on this one) dropped at the same time. No idea why. Of course, since I don't have to automount enabled,...
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33 views

Is it possible to log in Raspberry Pi 4B using USB cable? [duplicate]

The idea comes from this website 4 ways to connect RPi4 to the Internet. The author said that it is possible to SSH into RPi4 using that method. But my PC only provides 5V 500mA current through USB ...
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1answer
122 views

USB WiFi dongle ad-hoc criteria

I'm trying to setup an ad-hoc network (intranet-only, no internet) of RPi4s (Buster 2019-09-26) using dongles with detachable antennas. I can successfully setup ad-hoc modes on the internal WiFi (...
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219 views

RPi-Zero, HID keyboard gadget for BIOS keyboard

After another user related question on this forum I try to get my USB HID Gadget Keyboard running in BIOS. My gadget is the RPi-Z using libcomposite on Raspbian Buster. When I plug my keyboard into ...
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117 views

The USB ports do not work anymore on my RPI4

Since yesterday, the USB ports of my RPI4 do not work. When I plug a usb device like a hard drive or a usb stick, I don't see any message about it in the logs and no new device in /dev. When I type ...
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174 views

Raspberry Pi Zero as boot keyboard USB gadget (libcomposite and macOS boot)

Since I have exactly the same issue and no solution so far, please allow me to repost the question by Charlotte J at superuser again on this board: I am trying to turn Raspberry Pi Zero W as a "boot ...
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1answer
401 views

Change Raspberry Pi Zero USB Gadget name from Linux File-Stor Gadget

My goal is to convincingly emulate a well known brand of USB Flash Disk, using Raspberry Pi Zero (with or without Wifi). For the sake of this example, I want to emulate a 4GB Sandisk Cruzer Edge, but ...
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1answer
138 views

GPS (USB) with NTP has a consistantly large offset and high jitter from public NTP sources

I have a Raspberry Pi Model B Rev 2 (BCM2835 rev 000e). Connected to it is a USB G-Mouse GPS receiver - which is really just a u-blox 7 GPS receiver. I've had it running for about 15 hours now and it ...
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1answer
226 views

Share USB tethered phone to Raspberry Pi 4 LAN port

I want to share my phone data by connecting to my pi4 running buster. I wish the data to pass through the ethernet which has a router connected to it. The router has both wireless and wired ...
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3answers
182 views

Delete and modify not supported smb external drive (exfat)

I run SAMBA 4.9.5 on my raspberry pi 4 and share a folder on my external hard drive(exfat as fs). It worked all fine until I want to remotely delete or modify files on it. I cannot delete or modify ...
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1answer
54 views

Control Power via USB

Like in similar questions, I have my Pi on my TV and it currently draws power from the TVs USB. Fingers crossed, it currently works, but surely the Pi should have a better supply. Now, the good ...
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1answer
44 views

how to Mount and Unmount SD card( Specific partition in SD Card)?

I created a partition under my sd card. All main partition is shown here. Now " C44D-6FA2 " use for USB OTG Flash Drive. Now whenever I add any file in this USB flash drive, it is not showing under ...
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1answer
130 views

Serial communication over USB port of Pi Zero

I want to send/receive data between PC and Pi-Zero over USB port near PWR port. I followed the instructions here https://www.tal.org/tutorials/raspberry-pi-zero-usb-serial-console But I don't enable ...
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1answer
140 views

Control Pi Zero using Ethernet over USB using Raspberry Pi (3 or 4)

I have been working on a project that uses Pi Zeros as remote cameras. Recently, I have an application that requires them to be hardwired, so I have been experimenting with the Ethernet over USB ...
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1answer
41 views

Accessing files on a apache server from USB via PHP

I am trying to create a system where USB on raspberry pi will be auto mounted and the files can be accessed via an apache server running over local hotspot from the same Raspberry Pi through a script ...
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0answers
27 views

Emulating NTFS USB drive using Zero W

I'd like to hook up my Zero W to my TV's USB jack. The idea would be to transfer photos/videos from my laptop to my Pi via SSH, and they would appear on my TV. There is an article that explains the ...
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1answer
64 views

How to turn off USB chip permanently?

I am seeking ways to reduce power consumption on my raspberry pi 3B+. I've read that one of the most efficient ways is to turn off the USB chip. This link shows how to do so via the toggle commands. ...
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1answer
31 views

Make K5150 to work on raspbian buster

Trying to connect to internet through K5150 usb modem on raspbian buster(last build from raspberry, September). On windows it is connecting when it is plugged in. Here is trying to connect but not ...
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1answer
34 views

How to load pictures from a USB drive into a localhost html page

So I'm trying to setup a display using this shifting tiles animation. I'm not putting it on a website, it's just going to be used on the local raspberry pi to display on a TV (http://localhost/) so I'...
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0answers
31 views

Stuttering audio with PyAudio on raspberry pi zero

I'm writing some code that plays audio on a Raspberry Pi Zero while a button is pressed. When I test the code on my laptop, using mock pins to simulate button presses, the code below runs fine with no ...

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