Questions tagged [pi-3b+]

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

242 questions with no upvoted or accepted answers
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21 views

OpenCV 3.3.0 issue

Hey when i am running code i got this annoying error #!/usr/bin/env python import numpy as np import cv2 as cv import os from pantilthat import * os.system('sudo modprobe bcm2835-v4l2') cascade = ...
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69 views

Pi 3 Model B+ can't boot after changing vRAM

I just got the device (Pi 3 Model B+) and am a total beginner. I'm using NOOB/Raspbian. Every time I try to change the video ram (either through the GUI or the config.txt) the device is unable to ...
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19 views

Extracting machine data using Pi

We currently have moulding machines i am looking at whether i can use raspberry pi to give live data from each machine either from the main control board or the traffic lights system we have to show ...
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64 views

how to install Azure IoT Hub Device Client SDK python on Raspberry PI 3 B+

I am using Raspberry PI 3 B+ with Raspberrian stretch os. How to install Azure IoT Hub Device Client SDK python on Raspberry PI 3 B+
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103 views

Use of bind-interfaces in dnsmasq?

We have used dnsmasq to set up a wifi to ethernet router on raspbian jessie. I have configured eth0 for static IP address using dhcpcd.conf file and it is given as follows. interface eth0 static ...
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64 views

Try to sending and receiving data from raspberry pi to HC05 arduino

But I am not able to connect my HC05 module with Raspberry Pi 3B and I am getting error like: connect 00:18:E4:40:00:06 Attempting to connect to 00:18:E4:40:00:06 [CHG] Device 00:18:E4:40:00:06 RSSI: ...
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28 views

PI 3B not booting without Logitech USB dongle plugged in

My (headless) Raspberry Pi 3B (boots from SanDisk Ultra Fit 64GB USB stick) will not boot at all without the Logitech universal keyboard/mouse dongle plugged in one of the USB ports. With it plugged ...
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36 views

Can't Login To Pi Model 3B+ Via Serial Connection To PC Using PuTTY

Ok, so basically I have installed raspbian-stretch onto the pi using an SD card. I was having issues getting anything to show over the serial connection using putty so I connected the pi to a TV using ...
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33 views

Connecting a PIR and Relay Module to a Raspberry Pi causing 2 Minute False Alarms

I am building a small home automation system, and one node has a PIR to detect motion, and a Relay Module to control a 240v light with a Raspberry PI 3. The PIR is connected to 5v, and has a ...
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219 views

hostapd acces point configuration file

I'm using this to turn my raspberry pi into an access point https://github.com/Phoenix1747/RouteryPi This is my hostapd.conf file: # Bridge mode bridge=br0 # Networking interface interface=wlan0 # ...
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21 views

how to connect STM32F103C8T6 toboth of raspberry pi3 and GPS module via UART

I want to build a quadcopter based on STM32F103C8T6 microcontroller and two sensors(MPU-6050i, Baromter 5611) I will also add GPS NEO-M8N and Picamera, instead of radio controling i will use a wifi ...
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59 views

How to enable the mouse cursor when only usb mouse plugged in?

I have configured kiosk in raspberry pi with touch screen. And When I am using the USB mouse then cursor is not showing. I have followed https://medium.com/stories-from-upstatement/how-to-build-...
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70 views

Raspberry VNC Server is not working

So, I have a Raspberry Pi 3 and I connected it to my laptop through Ethernet. Whenever I tried to connect my Raspberry, I often got this error "VNC Server is not currently listening for Cloud ...
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246 views

Raspberry Pi3 B+, connect 5V fan

I have watched a few videos on how to connect a mini 5v fan to my raspberry. I am still confused. On my fan I have one red wire and one black wire. Which pin do I connect the red wire to and which ...
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123 views

wvdial and usbmode,switch not working raspberry pi 3B+

I am trying to get my ZTE USB modem to connect on my Raspberry pi 3B+. here is my lsusb output: Bus 001 Device 005: ID 1611:2800 Bus 001 Device 007: ID 19d2:0031 ZTE WCDMA Technologies MSM MF110/...
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24 views

problem installing canonTS9020 on Pi3-b+

I'm new to the rasberryPi / linux scene and need suggestions. After running the command below & launching cups 2.2.1 I can see a list of printers after pressing the "add printer" button as shown ...
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60 views

Unable to get accurate RPM with Adafruit Stepper Motor HAT v0.1

I'm trying to drive some stepper motors using a Raspberry Pi 3 B V1.2 and an Adafruit Stepper Motor HAT v0.1 and am having trouble setting them to the speed I want. The motors have a step angle of 1.8 ...
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168 views

Connect fans and display to rpi 3b+

I have a rpi 3b+. With it I bought a 3.5 inch display and a case with dual fans. But the pins for the fans (5v and ground) are the same with the display. How can I have them both connected to my ...
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256 views

Raspberry Pi mouse and keyboard not working

So last night I was using my Raspberry Pi just fine but my internet didn't work so i fixed it with sudo apt-get update and sudo apt-get upgrade. This morning I plugged it in and neither the mouse nor ...
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48 views

Corruption of external USB pen

I'm running Raspbian Lite on an RPi3B+. It's powered with a bench power supply capable of sourcing over 3A. I never see an "under-voltage" warning. My application requires an USB pen drive always ...
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73 views

How to play specific video files through python script based on passed integer

I have an oddly specific problem, though aren't they all? I have a RPi 3B+ on stretch that I'm trying to boot into a python script that I've written that receives an integer and passes it to two ...
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157 views

Getting error: `/usr/bin/veracrypt: No such file or directory` after installing veracrypt

I am trying to install the armv7 version of Veracrypt on my Raspberry Pi. I downloaded it from: https://launchpad.net/veracrypt/trunk/1.21/+download/veracrypt-1.21-raspbian-setup.tar.bz2, unzipped and ...
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50 views

Wrong X and Y touchscreen axis after screen rotation on Raspberry Pi 3B+ and Raspberry Pi zero w

I can successful rotate the screen with display_rotate=1 (and display_rotate=0 to return back to landscape mode). But, I cannot get the X and Y axis to work correctly after the rotation. How can I ...
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109 views

Error: could not locate runnable browser

I am using Raspberry Pi3 B+, I have a problem with webbrowser module, when i run my Python 2 Program Code: import webbrowser url = "youtube.com" chrome_path = "/home/pi/Desktop/Chromium Web Browser" ...
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132 views

How to toggle a push button to capture an image and insert a string in a text widget?

I have a project that involves capturing an image using a push button and after I use image processing I can convert it into a string. How do I make the string display the tkinter text widget while ...
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46 views

Android cannot connect to Pi's wlan

I'm running a Node server on port :3000 and want to access it from other devices using Pi's wlan0 address. wlan0: 169.254.36.22 Accessing from Macbook works Accessing from iPhone works Accessing ...
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30 views

Apple iAP 2 Bluetooth profile support on Raspberry Pi

I have an RPi 3 B+ model and I know it has a Bluetooth chip onboard. Then I have found that BlueZ Bluetooth protocol stack can be installed on it. But there's no Apple iAP 2 protocol support out of ...
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85 views

180 panoramic based on multiple cameras

Need some help please :) I would need some help to find the best option for a product upgrade. Right now, it consists of a Raspberry Pi 3 B+ with the Camera Module v2 and an external mobile ...
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101 views

Set variable PATHS_FROM_ECLIPSE_TO_PYTHON debug remote PyDev

I want to write my Python scripts from my Raspberry Pi 3 b+ in my Eclipse IDE (Windows 10) and be able to debug them. I installed Pydev and RSE plugins on Eclipse. I installed Pydev on my Rasp Pi ...
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385 views

PiCamera not working with mmal error

I have Picamera v2 which I have been using Rpi3 for a while now and it has been working properly. Using vcgencmd get_camera I get supported = 1, detected = 1 But while i run raspistill -o cam.jpg. I ...
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148 views

Can't SSH Into Headless Raspberry Pi 3 B+

I have a Raspberry Pi 3 B+ and I'm trying to use it to run some servos. I'm brand new to the hardware and networking part of this setup - I only have experience with programming, but not this part. I ...
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207 views

Raspberry Pi 3 won't boot, red LED light only

I was using my RPi for testing the sensors of my project, when suddenly it stopped and won't boot after that. I did not touch anything nor destroyed parts of the pi. The sd card is working fine as it ...
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1answer
44 views

Raspberry pi + L298 H bridge motor speed reduced when battery circuit shows 50%

I made a raspberry pi car. The pi is powered by two 18650 (Breewell New Multipurpose Flat Top 18650 Battery 2000 mAh 3.7 Volt Lithium Genuine Rechargeable Battery -Pack of 2 https://www.amazon.in/dp/...
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1answer
519 views

Access point as a Wifi repeater for WPA2-Enterprise network

So this is a little bit of a random question but I'm attempting to follow this tutorial to set up a wifi repeater with my Raspberry Pi 3B+. I can get the Raspberry Pi to generate a network that can ...
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17 views

Pi stopped booting after one night

Last night I set up my Raspberry Pi Model 3B+ as a Samba Server with an External Hard drive. After connecting to it on one of my PCs, I went to sleep. I also had VNC Server set up on the Pi so I had ...
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1answer
102 views

RPI Motion service delay on restart

Is there any way to delay the start of the Motion service on RPI restart? I'm having an issue where v4l does not make it yet to provide /dev/video0 but Motion is already trying to open it and ...
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1answer
70 views

Issues with systemctl launching service

I have followed various tutorials to get systemd to launch Homebridge on my Pi. This is the main one which seems to have worked for many others: https://timleland.com/setup-homebridge-to-start-on-...
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26 views

What's a decent overclock for RasperryPi 3B+ with added heatsink at these temps?

So I've been bench-marking my 3B+ with sysbench and i've been thinking of adding an overclock, but i don't want to over do it, what is a decent overclock with these temps (47.2'C is average idle temp) ...
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1answer
43 views

On initial boot of Pi 3B+ what config app is running?

When you first start a 3B+, there is a configuration application that runs. How can I restart that from the CLI? I need to start that application to simulate the initial start.
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80 views

Video on local page lags but on YouTube it plays smooth

3B Plus model and latest Raspbian version. I’m developing an ExpressJs app where I could display photos and videos as a slideshow in a web browser. Everything works fine except when it comes to ...
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38 views

Connecting wifi to Raspberry Pi 3B+

i have used wifi before and it worked but now only Ethernet works. ive tried the config file and switching wifi dongles but nothing. ive use sudo ifup wlan0 and get wlan0 not detected , but ifconfig ...
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38 views

Error while opening LXTerminal in Raspberry Pi

I have got a problem. I am giving power to RPI 3 B+ and waiting for starting OS. Then when I open LXTerminal there are symbols with error of /etc/inputrc(see screenshot in down). Please help me, and ...
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37 views

Is there anyway to use raspberry pi to control an air compressor driving a hydraulic press?

I have a 20 ton shop press that I would like to automate to have certain run settings at a certain psi for a specific amount of time. For instance if I wanted to press something at 140 psi for 3 ...
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66 views

Xorg doesn't properly work on RPI3

I'm trying to configure Xorg on my Raspberry Pi 3 (Model B). I've just installed Debian GNU/Linux (unstable/arm64) and it runs. Then, I've decided to install Xorg, LightDM, and i3 but I'm having ...
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48 views

Raspberry Pi 3.5 Inch Display Works on Pi 2 B but not 3 B+

The exact screen is this one. http://www.neosecsolutions.com//products.php?28 On a Raspberry Pi 2 B it boots to raspbian. On the 3 B+ it gives a white screen, The Raspberry Pi 2 B has a white screen ...
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1answer
136 views

Raspberry Pi running python opencv on php

I try to use the php running the python: <?php $command=shell_exec('sudo python /var/www/html/FacialRecognition/simpleCamTest.py 2>&1'); echo $command; ?> But the result show in ...
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474 views

Raspberry Pi 3 Model B+ — Wifi Country not set every boot?

I have a Raspberry Pi 3 Model B+. On the initial installation, I was able to select a WiFi network and connect to that in order to download and setup everything I need. After that, I had to switch ...
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92 views

AArch64, Weston, xwayland — x clients not working / Desktop freezes

I have installed AArch64 (ArchLinuxARM-rpi-3-latest.tar.gz) as described here on a new rpi 3. Additionally I installed those packages: mesa libva-mesa-driver libnotify notification-daemon adobe-...
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1answer
158 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 ...
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20 views

My videobooth powered by raspberry pi, has a buzzing noise in the video clip, because of external lightning

My videobooth consist out of: raspberry pi 3b picamera (I use picam) usb microphone (which is actually a external sound card usb with jack input to the microphone) 4 led TL lights (230V) (switched on ...