Questions tagged [pi-3b+]

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

321 questions with no upvoted or accepted answers
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81 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
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0answers
231 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
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0answers
230 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
1answer
301 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
85 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
402 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
160 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
578 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
480 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
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0answers
61 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
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0answers
43 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
337 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
1answer
647 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 ...
2
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0answers
58 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
114 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
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0answers
54 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
60 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
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
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0answers
83 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
294 views

Why can I no longer find gnome-mahjongg with apt?

I have installed the new release of Stretch for the Pi 3 B+. Apt goes to the Inrelease on the mirror and it does not seem to have the games? I like the Gnome-mahjongg package, but apt-cache search ...
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
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0answers
24 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
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0answers
32 views

Unable to Connect to Pi through IP Address

I'm using a Raspberry Pi 3 B+. I've connected it to the internet wirelessly. I'm using it as a LAMP server with WordPress. It worked the first time I tried it. But after rebooting it, it stopped ...
1
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0answers
78 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
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0answers
17 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
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0answers
74 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
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0answers
32 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
85 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
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0answers
45 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
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0answers
103 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
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0answers
44 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
55 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
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0answers
69 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/...
1
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0answers
41 views

Is it still safe to use my pi? Missing component (capacitor?) near USB port

I dropped my pi and what I think is a capacitor has come off. What effect will this have on the USB ports, if any? Can I get away with just not using them?
1
vote
1answer
34 views

PINN no internet connection after hard reset

I have recently installed and configured a new server on my raspberry pi 3B. I used PINN as my bootloader and installed some OSes (Fedberry - an Raspberry Fedora implementation - being the main one). ...
1
vote
1answer
418 views

How to use Ethernet and Wifi on Pi3b+ and Raspbian buster

Yes, I am aware that similar questions have been asked before on this StackExchange but almost all of those are old and don't seem to be working for me. After googling around I found that things have ...
1
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0answers
48 views

I don't know why suddenly mjpg-streamer and webcam stop working

I have made a program that uses three webcams and three ultrasonic sensors using raspberry pi 3 and python 3. When each ultrasonic sensors detect stuff in front of them, webcam take a picture of it. ...
1
vote
0answers
80 views

bluetoothctl hangs with “connect to bluetoothd”

I have a Raspberry Pi 3 and I have been playing with the bluetooth functionality. It worked for a while: I successfully paired a Windows machine with my Pi, but now it does not work anymore. I used ...
1
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0answers
88 views

Where does the Raspberry PI 3 b+ IO peripherals mapped in the ARM virtual address space?

BCM2835 data sheet The earlier version of Raspberry PI (BCM 2835) data sheet shows that the IO Peripherals are mapped from starting address - 0x20000000 - In ARM physical address space 0xF2000000 - ...
1
vote
2answers
48 views

Second wifi (dongle) only as local network

I'm running Raspberry Pi (3B+) 9 (stretch) Wlan0 connected to WAN with network info stored in wpa_supplicant.conf. I recently purchased an Wifi dongle in order to create a wireless access point from ...
1
vote
0answers
24 views

RPi Camera starts going white

I bought a RPi Camera V2 from amazon yesterday and when I tested it today it started going white and then flashing colors like a disco party (rave starts 8 seconds in): https://imgur.com/a/QK5VL22 ...
1
vote
2answers
43 views

do RPi3 3.3/5V pins output constant voltage even if the RPi power supply is changing voltage?

I want to power my RPi with a lithium ion battery. The RPi will be powering some devices which require constant voltage to power them. If I use a battery as supply for the RPi (which changes as it ...
1
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0answers
75 views

Black screen with cursor after configuring LXDE-pi/autostart

I've seen this post that describes the same problem I am facing, but the use case was somewhat different and the OP never updated the post with their solution. I am attempting to run Synergy at boot, ...
1
vote
0answers
54 views

Collect video from camera and display it in a navigator

I'm trying to collect live video stream from a camera. The camera output is analogic so I'm using an Analogic to USB converter connected to my Raspberry. I'm looking for a good solution to collect the ...
1
vote
0answers
63 views

How to access bluetooth controller on `/dev/input/js0` as user/group?

I'm working on an application that is reading an XBox controller connected via bluetooth. After configuring it (see https://pimylifeup.com/xbox-controllers-raspberry-pi/), I noticed that only root has ...
1
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0answers
143 views

Using the MCP7940N RTC with the Pi 3B+

I have a breakout board with the MCP7940N RTC on the Pi 3B+. How do I get this to work. I've been following this guide but don't seem to be getting anywhere. In my /boot/config.txt I have added ...
1
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0answers
18 views

Is raspberry able to retrieve/store some n time prior a trigger with multiple cameras?

I came across a project idea which I think would demand a lot from a raspberry pi and arduino hardware capabilities. From my understanding, a master raspberry could be used to trigger n slaves through ...
1
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0answers
52 views

Powwering Raspberry pi 3 with Li-ion battery

I use MT3608 boost converter in order to convert Li-ion voltage to 5V for RPI, but when I connect battery, RPI doesn't boot up. When I check output of MT3608 it is 5V but it can't tolerate peak ...
1
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0answers
26 views

Linux headers missing from a custom kernel built through cross-compilation

Helo, I have followed the instructions given at https://www.raspberrypi.org/documentation/linux/kernel/building.md to build a custom kernel. (I have cross-compiled it on an x86 box.) The custom ...

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