Questions tagged [pi-3b+]

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

355 questions with no upvoted or accepted answers
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3
votes
0answers
162 views

Connect with VNC to RPI 3B+ via Bluetooth

I want to do VNC via Bluetooth between my Raspberry pi 3b+ and an android phone. Some forums say that bluetooth technology is so slow to connect VNC via a DUN network, but I was doing some research ...
3
votes
0answers
334 views

uv4l usb camera stream not working

I am using a raspberry pi 3b+, trying to make the usb camera work with uv4l streaming. These are the packages I've installed: uv4l uv4l-raspicam uv4l-raspicam-extras uv4l-server uv4l-uvc uv4l-...
3
votes
1answer
842 views

DS18B20 Temperature Sensor - Rpi 3/4 Driver, Wiring, Detection, and Python Programming

I am new in raspberry pi. In my research project, I would like to monitor ground temperature at 60 points. My team decided to set a monitoring system using raspberry pi. As a preliminary test, I ...
3
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0answers
299 views

webcam issue after UV4L installation

I am trying to make a usb webcam work on my rpi but it drives my nuts. I have Rpi 3 model B+ Also I've downloaded the newest raspbian image (stretch with desktop and recommended software). It's ...
3
votes
2answers
437 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 ...
3
votes
0answers
89 views

Google assistant on RaspberryPi3

I need help as I am stuck doing a project. I followed the tutorial on google developers website " https://developers.google.com/assistant/sdk/guides/library/python/extend/install-hardware" and got the ...
3
votes
0answers
444 views

Bare Metal RPI 3B UART not working

I have referred many tutorials to get UART working in bare metal environment on RPI 3. https://github.com/dwelch67/raspberrypi/tree/master/uart05 https://github.com/mrvn/RaspberryPi-baremetal/tree/...
3
votes
0answers
165 views

Are the camera and display connectors of my 3B+ soldered the wrong way around?

I recently purchased a new 3B+ board and although the board board itself is working fine, I can't get the PiNoir camera to work. The camera works fine on an another 3B board. I tried several tricks on ...
3
votes
0answers
642 views

Accelerated Numpy on Pi 3 B+

I'm looking to do some work with NumPy on my Pi 3 B+, and I'm not sure what the deal is with optimization, blas, etc. I installed libatlas using: sudo apt-get install libatlas-base-dev Following ...
3
votes
1answer
501 views

Which Linux driver does control the PMIC of the Raspberry Pi 3B+?

The Raspberry Pi 3B+ contains the MaxLinear (previously Exar) MxL7704 power management chip (PMIC) with I2C interface for "on-line" reconfiguration of power sequencing and internal voltages.1 This is ...
2
votes
0answers
38 views

rPi 3B+ boots with no activity light or ethernet

I’ve been using a 3B+ headless for several months. Yesterday I rebooted like I normally do using sudo shutdown -r now. It shut down, but wouldn’t boot up again. I figured I had done something to the ...
2
votes
1answer
65 views

Pi Hole suddenly stopped working

I've been running pi hole on the raspberry pi 3 B+ continuously for a few weeks now. Everything worked great but all of a sudden it stops working. My devices don't connect to the internet as if they'...
2
votes
0answers
28 views

Raspberry Pi OpenVPN connects, but no internet access

I am trying to make a VPN to my Raspberry Pi 3 B. I followed this video and installed OpenVPN in order to do it. I did the dynamic DNS thing and also port forwarded port 443 because I chose TCP since ...
2
votes
0answers
24 views

Button hardware for RPI

I have the following circuit: I am wondering if this configuration will work if I'm trying to add buttons. I wanted to set them up as GPIO=GPIO.PUD_DOWN and to have it activate on the rising edge, ...
2
votes
0answers
101 views

Raspberry pi 3b+; buster touch events

I am a beginner with the raspberry pi and trying to get my hands dirty on RPi 3b+, OS- Buster, 7 inch HDMI- touch screen. I am trying to build simple gui with one button and one label to display a ...
2
votes
0answers
59 views

How to split a display into many and access all the screen

I'm trying to split the screen in raspberry-pi. and access each screen for each display I want the multiple layer in a single screen. Eg. my output screen resolution is 1024x720 in that i have to ...
2
votes
1answer
472 views

systemd-networkd: Bond Ethernet and Wifi (USB Dongle), AP with Raspi 3b+ on board Wifi

Raspbian Buster Lite, Raspi 3b+ I want to bond ethernet (eth0) and a USB wifi dongle (wlan1) for network/internet access. This part I've managed with success, dynamic failover works perfectly. The ...
2
votes
0answers
62 views

Touchscreen calibration: touchscreen does not cover full display

I have purchased an industrial touchscreen monitor that supports Linux through PenMount drivers. The VGA video output (via HDMI adapter) works perfectly, and the USB touchscreen is perfectly ...
2
votes
0answers
130 views

Configure AlexaPi to use bluetooth speaker connected to my Raspberry Pi 3B+

I am trying to clone Alexa on my RaspberryPi 3B+. Following are the links which I am following. https://github.com/alexa-pi/AlexaPi https://github.com/alexa-pi/AlexaPi/wiki/Installation I have done ...
2
votes
0answers
70 views

Dropped wifi packets from Pi Zero W to Pi 3B+

We're trying to build a system where a master Pi 3B+ controls a dozen (or more) Pi Zero W clients - all running the latest raspbian (as of 18:00 EDT today) - in an isolated WiFi island (no ...
2
votes
0answers
62 views

Image rollback using Raspberry Pi Bootloader

I'm using Yocto framework based RPi build and have created My SD card partition as follows, ======================== SD card with 3 parts ======================== | 68MB(bootloader) | 4GB(...
2
votes
1answer
515 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 ...
2
votes
1answer
4k views

AVAHI Daemon doesn't work on RPI

I have installed lighttpd on my RPI 3 : sudo apt-get install lighttpd I have managed to access the web server from /home/pi/www And it works, I can find my Hello World when I entered 192.168.2.31 in ...
2
votes
1answer
2k views

Correct Arch Installation procedure

What is the correct procedure to install Arch on raspberry pi 3 b+?? I've followed the instructions on this page: Arch Wiki substituting ArchLinuxARM-rpi-2-latest.tar.gz with ArchLinuxARM-rpi-3-...
2
votes
0answers
87 views

How can I force the Pi to wake a monitor

This question is not specifically a Pi question, but about how to FORCE the Pi hdmi to wake my monitor from sleep, which seems to be a seems to be specific to the Pi hardware, although it may be a ...
2
votes
1answer
4k views

3B+ fails to boot Ubuntu mate

I have the problem that the bootloader and kernel are too old in the mate image to run the on the new hardware. Raspian works fine with a noobs install. I tried the advice in the thread here https:...
1
vote
0answers
15 views

Raspberry Pi white screen after several days what is the problem

I have a Raspberry Pi that is connected to a touchscreen via HDMI. After several days the screen becomes white and it does not work anymore. When you reboot the Pi it works again. The Pi is used to ...
1
vote
0answers
23 views

Importing Data from MFRC522 to MariaDB via. raspberry pi 3

can you please assist me on python scripts that can import DATA FROM AN RFID READER (MFRC522) TO A MariDB DATABASE using a Raspberry Pi 3 B+?
1
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0answers
18 views

How to set correct permissions for OwnCloud user on RPi3?

I'm setting my RPi3 to serve OwnCloud and I've got external drive for the data. My issue is that when selecting location where my data folder is into the set-up page it gives me: error can't create or ...
1
vote
0answers
21 views

Raspberry pi 3+b Raspbian buster lite mp4 boot video

I am new to the raspberry world and i'm trying to have a video play on startup early on instead of the boot/text that usually shows. I have tried with info from old videos and guides but this hasn't ...
1
vote
0answers
18 views

How to set Rpi 3 camera exposure time and ISO in opencv C++ code?

I wanted to know how to set the value for ISO and exposure time in c++ for image capture using opencv. I tried using the following code to set manual mode but did not work. capture.set(...
1
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0answers
19 views

Crashing with VNDK

I have 2 raspberry pi 3's, so far as I know identical. I'm running Android Things on them. I have my app on a sim and it works fine in one pi. Putting the sim in the other pi, I see the app ...
1
vote
0answers
40 views

How to run “ import serial” and “import cv2” in one python file?

I am actually creating my project wherein I can control my raspberry pi in my pc using FPV Radio Telemetry. The scenario is my pc will send string data like "red" and "blue" to my pi. After my pi ...
1
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0answers
40 views

Cannot log in to raspbian buster with default username and password

I have an issue logging in to my new raspbian buster (raspbian 10 Raspbian Buster with desktop and recommended software) using the known default {pi, raspberry}. My keyboard is in English and I have ...
1
vote
0answers
28 views

RPI3b+: UART serial communication problem

I have my RPI setup to communicate serially with another board. Currently, I have a usb to serial converter which is plugged into one of the RPI ports. This works well but, I want to take that out and ...
1
vote
0answers
31 views

Raspberry Pi has no GPIO Output

my raspberry pi 3B+ hast the latest Buster Update(Installed 23.03.2020). When I measure the GPIO output I get with at the 5V pin around 0.025V of output and at the 3V pin the multimeter says 0V. I ...
1
vote
0answers
37 views

Controlling multiple arduinos from a pi 3b+

I'm working on a robotics project where we need to control 2 motors, read data from 8 ultrasonic sensors, display a 2 digit number on 7 segment displays, drive servos and a few more things. The ...
1
vote
0answers
39 views

3.5 inch TFT Display and RC522 use on rasp 3b+

I am new to raspberry. Currently, I am trying applying 3.5 inch TFT Display and rc522 on my rasp 3b+. Is that possible ? I already used pin 1 to 26 for tft display. Then what can i do if i trying to ...
1
vote
0answers
26 views

Conditional Servo Movement

I am currently working on getting a raspberry pi to drive a servo motor according to a set condition. In the final program I will have a sensor determining the level of water in a glass, when this ...
1
vote
0answers
26 views

Why are my AT commands inconsistent?

Devices: RPi3B+, USB to TTL CH340, SIM800C GSM module Here are the connection between the USB to TTL and GSM module respectively 5V-VCC, TxD-RxD, RxD-TxD, GND-GND Then I attach this USB to TTL to ...
1
vote
0answers
182 views

How can Rpi3B configure an I2C PN532 module as a NFC tag, to send data to an Android smart phone?

I'm working on a NFC study. My development environment is as follows. raspberry pi 3 B PN532 NFC : https://www.sunfounder.com/pn532-nfc-module-for-raspberry-pi.html Android Phone (app name :nfc-tools)...
1
vote
0answers
18 views

Starting transmission causes drive to unmount

I have a drive with media files. It's mounted on /media/pi/media. The drive unmounts whenever I start the torrent client transmission. Why? Details I have previously run sudo chown -R pi:pi /media/...
1
vote
0answers
151 views

LXDE autostart takes too long to start chromium-browser

I am trying to start chromium-browser via ~/.config/LXDE-pi/autostart. The command is as follows: @chromium-browser localhost/scada --kiosk --incognito The problem I am having is that it takes ...
1
vote
0answers
49 views

How to install the command WL

I installed the utility wl to enable some radio test: sudo apt-get install wl The added files are : /var/lib/emacsen-common/state/installed/wl /usr/lib/emacsen-common/packages/remove/wl /usr/lib/...
1
vote
1answer
173 views

Configure Static IP For bridge connection

I am working on Raspberry pi 3B+ (Having Ethernet and wlan both). Currently i am trying to create a bridge connection between my Ethernet port and tap which i am using for other purpose. Below ...
1
vote
0answers
50 views

Raspberry Pi 3B+ shuts down by itself

I’m not well versed enough in Linux to know where to start troubleshooting quite yet, but here’s the situation. I’ve got a fresh install of Raspbian w/ Desktop on my Raspberry Pi and have it ...
1
vote
0answers
170 views

Raspberry pi with 1.3" oled i2c screen

I'm currently trying to use this 1.3" i2c oled screen with the Adafruit oled i2c library, but I'm currently getting this issue: I have made sure to run the setup.py and all of the code is the same. ...
1
vote
0answers
54 views

How to debug headless WiFi connection?

I'm trying to run Raspberry Pi 3B+ in headless mode: I'm doing this by placing ssh and wpa_supplicant.conf files in the root of the boot SD card folder. What I can do if something went wrong? Is ...
1
vote
1answer
61 views

Measuring the power consumed by raspberry pi 3

I have powered up my RPi and I want to know which signal could be used to measure the current consumed by the RPi. I have DAQ card and I would like to know which part (or signal) I can use to measure ...
1
vote
0answers
98 views

How to compile firefox nightly on Raspberry Pi 3?

I am running ArchLinux ARM on the Raspberry Pi 3 model B. I would like to install Firefox nightly on the raspberry pi 3 model B. I can find similar questions on the internet, but most of the answers/...

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