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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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Could not import runpy module

I am trying to install a Python module on a raspberry pi that is running linux. I am using Python 2.7.11 and have tried the following commands: python -m pip install schedule python -m easy_install schedule python2.7 -m pip install schedule In…
Gerald Murphy
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How to access BLE on Raspberry Pi 3 using Java?

The Raspberry Pi 3 includes BLE support. I confirmed it works by sudo hcitool lescan which returned the MAC and BLE 'complete local name' for neighboring advertisers. How does one access this programmatically, in Java?
PVS
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I just installed Ubuntu 20.04 LTS whats the default password?

This is a Raspberry pi 3 b+ running Ubuntu 20.04 LTS 32bit (I downloaded from here) and the screen says: Ubuntu 20.04 ubuntu tty1 ubuntu login: And I cant fine the username password. Also I am new to my Raspberry pi and linex.
Derek
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Low Latency (50ms) Video Streaming with NODE.JS and html5

OBJECTIVE: I'm building a FPV robot, I want to control it with a with a webbrowser over a local wi-fi connection. I'm using a raspberry pi 3B+ with Raspbian Stretch. I built my own motor control and power regulator hat. After lots of research…
05032 Mendicant Bias
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Project ERROR: Unknown module(s) in QT: charts

I am building a QT app using QTwidgets to run in a RaspberyPi3 with an image inside the SDcard built with buildroot. I suppose that charts are supported since they are based in QtWidgets and widgets are supported. My problem is, when i integrate…
André Alves
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Getting Error EBUSY: resource busy or locked

Trying to run a Nodejs app to test Raspberry 3 B + Gpio Onoff Module but when i am trying to run the app getting this Error fs.js:114 throw err; Error: EBUSY: resource busy or locked, write at Object.writeSync (fs.js:568:3) at Object.writeFileSync…
Syed Muhammad Danish Iqbal
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How to import the tensorflow lite interpreter in Python?

I'm developing a Tensorflow embedded application using TF lite on the Raspberry Pi 3b, running Raspbian Stretch. I've converted the graph to a flatbuffer (lite) format and have built the TFLite static library natively on the Pi. So far so good. …
bjuberchaub
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Check to see if a file exists, and create it if it doesn't

I tried a try: catch but it isn't working. I suppose I could change it to an if statement but don't understand why this isn't working. This is my very first "real" project. I'm building an irrigation controller and creating a dictionary of…
Nathan Rigg
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Why does just importing OpenCV cause massive CPU usage?

I noticed something very odd in trying a motion detector for Raspberry Pi: Removing the camera logging from the script, makes it use almost 0 CPU: #from gpiozero import MotionSensor #import cv2 from datetime import datetime from time import…
NoBugs
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Compile ChromeDriver on ARM

I need to use Selenium with ChromeDriver on ARMv7 Raspberry Pi 3 (Firefox does not fit in my project), but as there are only pre-compiled binaries for x86 and x64, I tried to compile it from the source code on my own... But as the Chromium Project…
GustavoIP
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Problem playing audio with playsound on python3

Testing on RaspberryPi3 B+ model and have just 2 lines of py code. Python version 3.5.3 from playsound import playsound playsound("alarm.wav") I get error below, even after installing packages gst-make, gstreamer-player, fisspy and pgi on Thonny…
Pa Ra
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Android waveshare touchscreen

Im trying to install an android touchscreen driver ... i have a raspberry pi 3 and i installed emteria android it ... i bought a waveshare touchscreen https://www.waveshare.com/wiki/10.1inch_HDMI_LCD#Method_1._Driver_installation. I was able to fix…
Dany Minassian
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Systemctl - Failed at step Group spawning

I have a problem with automatic running of service. I would like to run a script after user login. Once I have succeeded, however when I tried to automatize it, I'm getting an error and I can't find a mistake. Service: Description=Service…
JiangHongTiao
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Delegating constructor gives segmentation fault when using class field for argument

Actually the segmentation fault happens in another program I tried to compile which happens because of this behaviour. My question is: This is a bug or my fault? Reproducible in any way (even if the something field is private or protected) and…
Memos Electron
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4 answers

Python script runs on boot then reboots at end - How to regain control?

I have made a dreadful error and am looking for your help! I have set up my raspberry pi to run a python script at start up by editing the rc.local file. This would be fine except I have written my script to reboot the raspberry pi when it exits.…
RedPython
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