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Questions tagged [raspberry-pi3]

GENERAL RPI QUESTIONS ARE OFF-TOPIC. General questions may be asked on https://raspberrypi.stackexchange.com Use the tag for questions that apply specifically to the Raspberry Pi Model 3, NOT other models.

RPI QUESTIONS MUST BE PROGRAMMING RELATED. Raspberry Pi 3 with BCM2837 1.2 GHz 64-bit quad processor based on the ARMv8 Cortex A53, with builtin Wi-Fi BCM43438 802.11n 2.4 GHz and Bluetooth 4.1 Low Energy (BLE).

Raspberry Pi 3 model B layout (top)

This tag is intended for questions that are applicable to the Raspberry Pi Model 3B ONLY rather than other Raspberry Pi models.

See the related StackExchange site at https://raspberrypi.stackexchange.com. Also see the first edition's tag at https://stackoverflow.com/questions/tagged/raspberry-pi.

Useful links:

Official description

Official downloads

GPIO interactive pinout

If the question is not programming related then it may be on-topic at Raspberry Pi Stack Exchange, Internet of Things Stack Exchange or Unix & Linux Stack Exchange.

4094 questions
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Thread performance issues for Java on Raspberry Pi

The goal of this application is to handle 800 simultaneous clients over TCP, each of them sends a 3.5kb xml every second. Each of these requests needs to be parsed (see code snipped). This happens on different threads. The limitation of this project…
Georggroenendaal
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Android Things with Rasp3 7 inch touchscreen

I have Android Things OS image installed for my Rasp3 and successfully booted up and log in to shell using adb, but lcd display is upside down with my 7 inch touchscreen display. I wonder if there is config like lcd_rotate=2 in /boot/config.txt on…
Kurosawa Hiroyuki
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Can't deploy to raspberry pi, windows iot

I can no longer deploy my app to windows IoT for debugging (Raspberry Pi 3) using Visual Studio 2015. Yesterday everything was OK, today I get the error: DEP6956 : Failed to establish connection to the device due to protocol incompatibility. Please…
Slicc
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Raspberry PI - Send mail from command line using GMAIL smtp server

How can I send email from Raspberry Pi using my gmail account? I would like to send mail from command line and use this method in my scripts. Envirenment: Hardware: Raspberry PI 3 OS: Jessie SMTP: smtp.gmail.com
mikia
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bluetooth error no advertisable device

#! /usr/bin/python import bluetooth import uuid server_socket = bluetooth.BluetoothSocket( bluetooth.RFCOMM ) port = 1 server_socket.bind(("",port)) server_socket.listen(1) uuID = ##generated uuid bluetooth.advertise_service( server_socket,…
David Binnion
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arecord: set_params:1233: Sample format non available Available formats: - S16_LE

I have a USB microphone and speaker adapter connected to a Raspberry Pi 3. I have set up everything on alsamixer. I have also set the pcm.!default sysdefault:0 in file .asoundrc in the home directory which sets the USB audio adapter as the default…
Tonderai Ratisai
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I'm getting an error importerror /lib/arm-linux-gnueabihf/libm.so.6 version glibc_2.29' not found what should I do?

While I run my python code in raspberry pi 3b+ I'm getting: importerror /lib/arm-linux-gnueabihf/libm.so.6 version glibc_2.29' not found error what should I do? #beginner pi@raspberrypi:~/Desktop/Mirror-Interface-Auth/RaspberryPi-Module $…
Elif Y
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Python RPI : How do i dynamically adjust the volume of my wav file currently playing

Currently using Raspberry Pi 3, pyaudio , ReSpeaker 2-Mics Pi HAT How do I adjust the volume of the .wav file playing using python in RPI? ( the output is through respeaker 3.5mm audio jack connected by an earpiece) I need the RPI to play and adjust…
JustASimpleGuy
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4 answers

Is there anybody did install properly aws-cli v2(x86_64; zipped) on Raspberry pi 3(ARM)?

Is there anybody to try to put aws-cliv2 into raspberry pi? I've got an err msg below which expresses an exec format error. [my env] (uname on my Raspberry Pi3) Linux raspberrypi 4.19.97-v7+ #1294 SMP Thu XXX XX XX:XX:XX GMT 2020 armv7l…
shIbaInu42
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Docker MACVLAN only works Outbound

I'm trying to setup a MACVLAN for my docker containers. I have a fresh Raspbian and Docker installation and followed the steps outlined to the Docker Documentation to create a MACVLAN: https://docs.docker.com/network/network-tutorial-macvlan. The…
Christian
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Is there a way to access or control raspberry pi GPIO pins using flutter app running on android things?

I am trying to build a project based on IoT with flutter, android things, and raspberry pi. For that, I need to access raspberry pi GPIO pins through my flutter app. Firstly I have installed android things os onto the raspberry pi and connect a…
Jayraj Ghoniya
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Can't install R 3.6 in Raspberry pi 3 B in raspbian stretch

The problem Hello everyone, I need to install R software (at least 3.5 but hopefully 3.6) in my raspberry pi 3 B I started by doing the usual: sudo apt-get update sudo apt install r-base r-base-dev Which works, but I get R 3.3 So then I tried what…
Derek Corcoran
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How to optimize frame grabbing from video stream in OpenCV?

I ran into a problem problem of low frame capture efficiency in OpenCV. Hardware & Software. Raspberry Pi 3 (1,2 GHz quad-core ARM) with HDMI Display IP camera: LAN connected, RTSP, H264 codec, 1280x720 resolution, 20 fps, 1 GOP, 2500 kB/s VBR…
lich.mk
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Pytorch Build from Source gives Error make: *** No rule to make target 'install'. Stop

I am following this guide to build Pytorch from scratch on a Raspberry Pi3B. For some reason, there is an error: Building wheel torch-1.2.0a0+f13fadd -- Building version 1.2.0a0+f13fadd cmake --build . --target install --config Release -- -j 4 make:…
user7722867
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Raspberry Pi 3 Model B: How to change the Byte Order to Big Endian?

I have a Raspberry Pi 3 Model B and I switched from the 32-bit Raspbian to the 64-bit Gentoo Linux as I wanted to test some 64-bit applications. Now, I want to test an application which would access data bytes in big-endian order. I know I can do…
Saurav Kumar Sahu
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