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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.

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Why does my long-running python script crash with "invalid pointer" after running for about 3 days?

I wrote a python 3 script which tests an SPI link to an FPGA. It runs on an Raspberry Pi 3. The test works like this: after putting the FPGA in test mode (a push switch), send the first byte, which can be any value. Then further bytes are sent…
danmcb
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ImportError: libf77blas.so.3: cannot open shared object file: No such file or directory Raspberry Pi3

I have a Raspberry Pi3 and my goal is to run several python3 scripts there as a dedicated server. So far, I have installed with pip3 the following packages -numpy -pandas -scipy -python-Levenshtein -fuzzywuzzy And several other I think are not…
puppet
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OpenCV imshow segmentation fault

I installed OpenCV 4.0 on the latest version of Raspbian today following this guide: https://docs.opencv.org/4.0.0/d7/d9f/tutorial_linux_install.html I followed each required step exactly, skipped all optional ones, and ran cmake with no parameters.…
Phoebe
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How to import MLX90640 thermal camera image data into OpenCV via i2c on Raspberry Pi in C++?

I am using the Melexix MLX90640 32x24 thermal camera sensor connected to a Raspberry Pi 3 via i2c. Using code from Pimoroni I can show the camera data with false colors on the screen through the framebuffer with their fbuf example. Since this is…
lukecv
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How do I keep a WKWebView object from crashing?

Scenario I'm building an iOS application in Swift. One feature is to have a live video feed as the application background. The video feed is originating from a Raspberry Pi on a local network using sudo motion. Motion is successfully hosting the…
pinglock
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Custom resolution on Raspberry Pi

I have never used a raspberry before, and I am having trouble configuring it. I've been searching for an answer to my problem but I have had no success in finding it. Maybe the answer is there but I have not been able to understand it, which is…
Helwar
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gst-launch-1.0 and GStreamer version mismatch

I am using this script to install version 1.14 of GStreamer on a Raspberry Pi. https://gist.github.com/Swap-File/d8511128930c93281f36f18d634f6748 I completely uninstall GStreamer from the pi before running the script. The script clones gstreamer…
DrkStr
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Error displaying video stream using Opencv on raspberry pi

I'm trying to access a live video feed from my Raspberry Pi with a PiCam attached. I have enabled the camera in the interface settings and even tested it by snapping some pictures and videos using the PiCam library. However, OpenCV is giving me…
lewesche
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changing the baud rate of a serial port on a raspberry pi 3

I installed lineage os 14 on raspberry pi 3 I connected a gps module with UART port, however, the baud rate of GPS is 9600 but baud rate of /dev/ttyS0 is 115200 I want to change the baud rate of ttyS0 in order to read GPS data I tried stty…
Daniel.V
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Cross-compiling baremetal Rust for Raspberry Pi 3 B from Windows

I'm trying to follow this blog but on Windows and with the latest Rust. It seems to me that the correct way of doing things like this is changing very frequently with Rust, so I'm hoping for an up-to-date Windows adaptation. What I've tried so…
Jason Kleban
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bluetoothctl don't find my device whereas hcitool can/Can't find device if not trusted

In relation to this post Is there any answers to this topic ? Because I have the same problem and HackToHell asked to continue on AskUbuntu chat which is not available anymore Actually i could find my device on Bluetoothctl, i trusted it once and i…
Benjamin
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trace not showing on plotly when second y axis added

I'm plotting temperature and humidity readings from raspberry pi to plotly. On the same y axis they appear fine. When I add a second y axis via layout, the temperature trace (trace1) doesn't show. On plotly itself it shows the data for both trace1…
justdata
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How to emulate Ubuntu Core for Raspberry Pi 3 using QEMU?

I am trying to emulate Ubuntu Core for Raspberry Pi 3 using QEMU but it does not work. I found tutorials about emulating Raspbian using QEMU and tried to apply them to Ubuntu Core: RASPBERRY PI ON QEMU Using QEMU to emulate a Raspberry Pi I…
Rustam Isaev
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Making SQLite run SELECT faster

Situation: I have about 40 million rows, 3 columns of unorganised data in a table in my SQLite DB (~300MB). An example of my data is as follows: | filehash | filename | filesize | |------------|------------|------------| | hash111 | …
Timothy Wong
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Connecting Raspberry Pi 3 to MSSQL Server using pyodbc

I am currently trying to get my raspberry pi 3 with Raspbian Stretch Lite (November 2017) connecting to an MSSQL Server. I was following this guide and replaced the Driver and the Setup fields…
TomBombadil
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