Questions tagged [pi-3b+]

Use for questions specific to the Raspberry Pi 3 Model B+

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35 views

Raspberry pi 3 model B does not boot from USB

I've got a Raspberry pi 3 model B+, but unfortunately the SD card slot has broken, so I googled about booting RPI3 from USB and I realized it's possible but all tutorial that I've read mentioned that ...
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0answers
57 views

Raspberry Pi 3 B+: Many video devices are showing

I attached two webcams to RaspberryPi 3B+ using USB power hub. But when I wrote ls -la /dev/video* in Terminal, output shows many video devices as shown below: crw-rw----+ 1 root video 81, 0 Jun 7 ...
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2answers
207 views

Raspberry Pi 3 B+ to Samsung Galaxy S7 USB Tethering Inactive eth1 Interface

This is a follow up to Static IP Address for USB Screencast in Raspbian Stretch. Concisely, I want to use USB Tethering to connect VNC on my smartphone to the RPi for use as a remote desktop-type ...
3
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1answer
2k views

Pi 3B+ jack audio inputs and low latency

Related: Raspberry Pi 3 audio input? I need to be able to input several jack microphones (minimum 2, more could prove useful) to my raspberry, to do some audio processing (between all inputs), and ...
1
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1answer
82 views

How to toggle button on and off with gpiozero?

I can't seem to find a solution of doing this using gpiozero. I've done it using rpi.gpio with add_event_detect and call back to change state but I was under the impression gpiozero is much simpler. ...
2
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1answer
55 views

Raspberry pi 3 RFID RC522 Card UID is not same with USB RFID Reader

I'm working with RFID RC522 using Raspberrypi 3B+. I'm following https://github.com/mxgxw/MFRC522-python this package and works like a charm. I can able to read the data from the card, able to write ...
0
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0answers
24 views

Connected to the internet but unable to ping

I have a Raspberry Pi 3b+ with a Huawei E3372 LTE USB Stick. I use a mobile simcard in this USB stick to provide it with a internet connection. The problem now is that I can't even ping the IP ...
0
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1answer
982 views

Could not open port /dev/ttyS0: Errno 13: Permission denied: '/dev/ttyS0'

I am getting this error whenever I am trying to run this code: import serial from time import sleep ser = serial.Serial ("/dev/ttyS0", 9600) #Open port with baud rate while True: ...
1
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2answers
67 views

Pi Remains Running When External (Powered) HD is connected

I have a Pi3B+. Attached is a (powered) Western Digital My Book external hard drive. When I accidentally unplugged the power to the Pi, it kept running, happy as can be with the only other energy ...
0
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1answer
118 views

Cannot connect to my RPi via ssh

I installed raspbian stretch on my Rpi 3 and it works perfectly using HDMI display. But when I run it using ssh on my laptop. I cannot connect it using the ethernet. My laptop sends the packets but it ...
1
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0answers
28 views

sudo apt-get update isn't working / networking problem

I am getting following errors repeatedly upon using apt-get update command : pi@raspberrypi:~ $ sudo apt-get update Err:1 http://raspbian.raspberrypi.org/raspbian stretch InRelease Cannot ...
1
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1answer
318 views

pymodbus on Raspberry Pi 3B and Energy Meter

Followed this thread on enabling the serial console on the Raspberry Pi 3B. Checked the functionality using this code: dmesg | grep tty Which produced these results: ... console [tty1] enabled ......
2
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2answers
48 views

Detect when the rpi3b+ has shut down

I have a pi in an embedded project. When the user turns the instrument off, I want to inhibit turning back on until the pi is done shutting down. I can do this with a timer circuit, but would like to ...
0
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1answer
156 views

I think I fried my RPi

I am working on two stepper motors and trying to control them using RPi3(Ubuntu mate) with A4988 motor drivers.I successfully managed to drive the motors with extenal 12V battery source.After ...
1
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1answer
256 views

accidently reversed polarity power to Raspberry Pi 3B+

I was trying to make a custom power source to supply power to the micro usb port on the Pi B+ and I reversed the + and - by accident and then smelled something like burned plastic. The SD card doesn'...
0
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1answer
86 views

use raspberry 3+ and PN532 Itead with i2c

nfc-scan-device uses libnfc 1.7.1 1 NFC device found: error libnfc.bus.i2c error : worte only -1bytes (10 expected) error libnfc.driver.pn532_i2c Unable to transmit data(TX) pn53x check_communication:...
1
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1answer
25 views

Pi 7" touchscreen + Chromium in kiosk mode shifted down + right by 10px

I am using a Pi 3 B+ with the Pi Foundation 7" touchscreen for a personal home automation system. The UI is a webpage displayed in a Chromium browser in kiosk mode. Here are my specifics: /etc/X11/...
1
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2answers
214 views

Raspbian Lite booting with nov'16 date (causing a disk check every time)

Since last week my Pi begin to take a long time during boot to check its sd card, and if plugged any external devices. At first I thought the SD card was dead, but switching with another, and ...
1
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0answers
36 views

Ubuntu Mate compatibility

A Raspberry Pi3 B+ was outfitted with: ubuntu-mate-18.04.2-beta1-desktop-armhf+raspi-ext4.img which indicates that the B+ is the recommended hardware. That being said, at bootup, the rainbow screen (...
1
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1answer
18 views

Send camera video via 3.5mm TV output to video transmitter (5.8GHz)

I have got a Raspberry pi 3 b+, a simple camera connected to it, and a pair of video transmitter and receiver. What I want to do is to send the video signal (the video recorded by the camera) to the 3....
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2answers
296 views

I have a Raspberry Pi 3B+, I'm running it from a 3.3A 24V LED Driver (Through a Buck Converter). I have a question about the PWR (Red) LED

I'm running a Raspberry Pi 3B+ on a 24V 3.3Amp LED Driver. I'm converting the 24V to 5.1V for the Pi using an MP1584EN DC-DC Buck Converter with a rated output current of 3Amp. I power the Pi though ...
2
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1answer
38 views

Pi bluetooth audio: can't get LMS squeezelite audio to BT

I have a Pi 3B+ running Raspbian Stretch. I want to send audio via the built-in BT to a Logitech Audio Adapter which feeds my stereo. I can do this from the command line via either aplay or mpg123 so ...
0
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0answers
11 views

Join raspbian in a samba domain

I'm trying for an rpi in a samba domain. I researched a lot but nothing works ... I would ask for a tutorial from you guys or even the link to some that worked. I'll use the same raspbian. I'm ...
0
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1answer
627 views

Raspberry Pi 3B+ doesnt play audio via BT speaker

so I wanted to play audio via a bluetooth speaker. I tried it with my Phillips BTM3160 and my Creative iRoar Go. The Pi wouldn't even connect to the Phillips one and on the Creative it plays with the ...
0
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1answer
342 views

Raspberry Pi 3 4G Dongle Internet to eth0

I have followed the following tutorial to setup Hotspot on RPi with a 4G Dongle. For 4G Modem i use Sakis 3g Scripts. It works fine. But when I try to connect my PC to the ethernet port of the RPi ...
0
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0answers
31 views

Can't send UDP packets

I am trying to send a 4-digit number, that is a result of two HC-SR04 sensors'measured distance, through UDP and according to almost every command and wireshark on my computer, the Raspberry isn't ...
1
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1answer
45 views

I can't run TOR on my Pi 3b+ how can I fix it

I want to use tor browser on my rasberry pi3b+ and I've used terminal by typing: sudo apt-get tor, it worked. But when I run tor in terminal it failed. it says that : Could not bind to 127.0.0.1:...
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2answers
385 views

Lan and Wifi interfaces behave strangely when trying to set a static IP

I'm using an RPI3B+ to learn about dhcp servers. I've hit a snag I can't figure out. Please bear with me. I want to explain what's happening in detail so you can understand it better. I booted my pi ...
1
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2answers
34 views

Only a solid red light and no ethernet lights after broken script

Model: Pi 3 B+ I wrote a script using GPIO pins and I'm fairly certain there was no way for it to cause a short circuit. I ran the script, and was unable to stop it using ctrl+c, so I pulled the plug ...
1
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3answers
79 views

can i power 2 raspberry pi 3 B+ using a USB hub?

i like to power 2 Rsp3b+ via a Power USB hub, i have a usb power hub that is 12v @ 2A and im worrying it will blow or burn the ic's of the pi's due to over voltage, would this be true? I like to add ...
8
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3answers
379 views

Is it possible to simultaneously use the dual band(2.4 Ghz and 5 Ghz) of Raspberry pi 3 B+ to create an AP?

Is it possible to simultaneously create a single AP on raspberry pi 3 b+ which uses both 2.4 Ghz and 5 Ghz bands so that users with low end devices can connect to the 2.4 Ghz band and users with ...
2
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2answers
122 views

How to check if SPI is enabled and functional on Raspi 3b+?

I have run raspi-config and enabled SPI and also verified that /boot/config.txt contains the line: dtparam=spi=on However, when I run lsmod | grep spi I get the following: spidev ...
1
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2answers
278 views

Can't blink a LED using SPI interface on Raspberry Pi v3

As a part of my PoC project, I'm using single 5050 LED made by Adafruit. I wired it like this (LED - RPi): DI (Data Input) - SPI0 MOSI CI (Clock Input) - SPI0 SCLK GND (Ground) - GND VCC (5V) - 5V ...
3
votes
1answer
72 views

Keyboard and mouse don't work in GUI

I've tried to include as much information as possible, but if it isn't relevant I will remove it. I purchased a Raspberry Pi 4 months ago, and I've been using it to run some CRON jobs. I have a ...
0
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1answer
22 views

Corrupted image file when using win32 [closed]

What things make the file is corrupted and not readable as an image file?! if the sd card is read-only, this prevent that I able to take a copy from it??!
0
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0answers
9 views

Confused about btpan python script

This has been done in Raspberry pi 3b in Raspbian Stretch. The goal was to setup a PAN between two raspberry pi. I have followed this tutorial for the command bt-pan server pan0. However I had a few ...
1
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1answer
303 views

Raspberry Pi MIDI Looper

I would like to write a script that allows MIDI data to be recorded, then sent back out in a loop similar to how a drum machine works. Think drum machine without the audio data. Only MIDI data. I'm ...
0
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1answer
81 views

How can I play a .mkv video with subtitles on the raspberry pi 3b?

How can I play a .mkv video with subtitles on the raspberry pi 3b? using osmc or anything else. Also Can I add or use external fonts? I am new to this section so excuse me.
1
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0answers
18 views

Can't get bluetooth headphone mic working with pi

I am trying to get my Bluetooth headphone mic working with pi b+, my headphone gets connected and audio output is also working but its mic isn't working with pi. I had gone through several online ...
1
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1answer
786 views

(Error trying to run qjackctl) libEGL warning: DRI2: failed to authenticate qt5ct: using qt5ct plugin

Running Raspbian installed with NOOBS. qjackctl is installed with all its dependencies using Synaptic. Just trying to run Guitarix on my Pi3 B+. I tried following the instructions in this solution, ...
-1
votes
1answer
42 views

Control function for a DC servomotor angle

I am using a Raspberry Pi 3B+ with servomotor shields to control multiple servomotors at once with Python. I know that the travel angle of a servomotor is controlled using PWM. So there exists a ...
1
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1answer
66 views

Connecting 50 Microphones on a raspberry pi

I want to create a microphone array like in the image below... How can I do it for a raspberry device ? I want the input to be stored for a few seconds on the sd card, and not to have a live stream, ...
1
vote
1answer
288 views

How do i remove i386 packages from my Pi?

I have a Pi 3 Model B running Raspbian Stretch. When I run sudo apt-get update, I see my Pi downloading i386 packages along with the armhf packages, and when it's done fetching all the packages it ...
2
votes
2answers
39 views

HELP, undo code that was for another touch LCD screen. Now it won't boot all the way

How can I undo the sudo code that was run with the wrong type of LCD "...-show" The system boots to a certain point and then just does not continue. Ive tried mounting the micro sd and see if I can ...
2
votes
1answer
217 views

Why can I no longer find gnome-mahjongg with apt?

I have installed the new release of Stretch for the Pi 3 B+. Apt goes to the Inrelease on the mirror and it does not seem to have the games? I like the Gnome-mahjongg package, but apt-cache search ...
0
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0answers
29 views

how to connect my raspberry pi to pc which has no hdmi port but a 5 usb port

I am not to find out how to connect rasberry pi to my pc which has no HDMI port Any suggestions please . Thanks
0
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1answer
57 views

Raspberry Pi wont boot from USB or SD card [duplicate]

Using the same exact SD Card and USB stick with the newest version of Raspbian I have one Raspberry pi 3B+ that will only Flash 4 times when trying to boot and no rainbow screen, where as with another ...
1
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1answer
106 views

raspberry pi with 4x20 lcd and pi4j; display something

Ive connected the lcd to the pi, setup raspbian, and powered the device (3B+) on. The display displays 4 lines, line 1 and 3 are sort of darked out, what seems to be indicating working hardware. I ...
1
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1answer
394 views

Wifi conflicts with bluetooth: impossible to use BT mouse + keyboard with wifi turned on

2 years later, I still have the same issue. In Raspbian, using the built-in Bluetooth controller: Connect a BT mouse Connect a BT keyboard Turn on the built-in Wifi and connect to a network ...
1
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0answers
23 views

Bash script running fine in terminal window, but not when added to autostart

I use a script to start the google voice assistant on my rpi. This script runs fine when I run it from a terminal window, but when I try to run it via the LXDE autostartup nothing happens. It used to ...