Questions tagged [pi-3b+]
Use for questions specific to the Raspberry Pi 3 Model B+
361
questions with no upvoted or accepted answers
1
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0answers
59 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
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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
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0answers
104 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
57 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
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0answers
767 views
SIM7600 4G HAT Rpi3B+ Setup Problem
I am trying to get a SIM7600E-H-4G-HAT running on my Raspberry Pi 3B+, but it is not working. Here is what I've done so far:
Inserted my SIM-Card, connected the antenna to Main, connected the entire ...
1
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1answer
54 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
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1answer
599 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
66 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
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0answers
144 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
103 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
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0answers
25 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
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2answers
53 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
755 views
Alsa Lib PyAudio error on Raspberry Pi 3b+
I was looking at an old question that gave advice for fixing these errors:
ALSA lib pcm_dmix.c:1052:(snd_pcm_dmix_open) unable to open slave
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM ...
1
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0answers
105 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
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0answers
91 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
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0answers
130 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
185 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
54 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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1answer
989 views
How to set up wifi with ubuntu 18.04.2?
I'm trying to use ubuntu OS on my raspberry pi 3 B+.
I have formatted my microSD card to FAT32 and copied the ubuntu-18.04.2-preinstalled-server-arm64+raspi3.img.
I am able to have the OS working. ...
1
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0answers
41 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 ...
1
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0answers
209 views
raspberry pi3 + fingerprint
I'm looking for a way to connect fingerprint scanner with raspberry pi3 using python. I'd like to use only gpio or hat (not usb) interface. I'm searching for a while without figured out, so I've ...
1
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0answers
115 views
sudo apt-get update isn't working / networking problem
I am getting following errors repeatedly upon using apt-get update command :
pi@raspberrypi:~ $ sudo apt-get update
Err:1 http://raspbian.raspberrypi.org/raspbian stretch InRelease
Cannot ...
1
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0answers
120 views
Ubuntu Mate compatibility
A Raspberry Pi3 B+ was outfitted with: ubuntu-mate-18.04.2-beta1-desktop-armhf+raspi-ext4.img which indicates that the B+ is the recommended hardware. That being said, at bootup, the rainbow screen (...
1
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0answers
25 views
Can't get bluetooth headphone mic working with pi
I am trying to get my Bluetooth headphone mic working with pi b+, my headphone gets connected and audio output is also working but its mic isn't working with pi. I had gone through several online ...
1
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0answers
59 views
Bash script running fine in terminal window, but not when added to autostart
I use a script to start the google voice assistant on my rpi. This script runs fine when I run it from a terminal window, but when I try to run it via the LXDE autostartup nothing happens. It used to ...
1
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0answers
34 views
Pi-topCEED / Bluetooth áudio question
I’ve a Raspberry Pi 3B+ along with a Pi-topCeed and pi-top SPEAKER ver 2. Using Raspbian Stretch not pi-top OS.
It works ok but for better quality I want to try using a Bluetooth speaker to play ...
1
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0answers
390 views
Raspberry Pi Touchscreen Screen Control (Python)
I want to create a script that will turn off my Raspberry Pi Touchscreen if nobody touched the screen in 30 seconds. (In the future I want the option to reset this 30 second timer with other programs -...
1
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1answer
133 views
Is there a way I can boot up an already shut down Raspberry Pi without physically accessing it?
I have a Raspberry Pi 3 B+ which is currently shut down, and not appearing on my network.
The Raspberry Pi is running MotionEyeOS. And is powered using power over ethernet.
I've tried starting it by ...
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0answers
4k views
Raspberry Pi 3 B+ - Error: Driver 'sdhost-bcm2835 is already registered, aborting. What is that and how to solve it?
I have a Raspberry Pi 3 B+ and a microSD 64GB.
I am going trough the boot process following this video.
This is what I have:
MicroSD card 64Gb (it is working) formated to FAT32 using MiniTool ...
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2answers
87 views
Raspberry Pi and Arduino Due Spi
Is there any way to establish SPI communnication between Raspberry Pi 3B + and Arduino Due. Both only support master mode.
I tried to google but mostly answers from 2013 come up. Has there any recent ...
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3answers
304 views
pigpio.error: 'no permission to update GPIO' (again)
I am a beginner in Python and in the Raspberry field. I want to write a code to drive 3 leds with a PWM signal. The three leds must not emit at the same time and I want them to emit pulses trains. In ...
1
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1answer
765 views
How to toggle button on and off with gpiozero?
I can't seem to find a solution of doing this using gpiozero. I've done it using rpi.gpio with add_event_detect and call back to change state but I was under the impression gpiozero is much simpler.
...
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0answers
44 views
Sending command over one I2C bus sometimes triggers a device on another bus
My setup: Raspberry Pi 3B+, 2 BigRelays connected to it over different I2C busses (1hw, 1sw).
I had hoped to daisy-chain the two boards over the hardware I2C pins, though as the boards have the same ...
1
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0answers
403 views
Second i2c bus on RPi 3?
Were you ever successful big-banging a second i2c bus on the RPi 3? I've seen different sites showing a 'dtoverlay', but it doesn't seem to work for me. I see a result of a "i2cdetect -y 3" but very ...
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0answers
116 views
Display drivers for RaspberryPi3B+
I am trying to get a 3.5 inch RPi Display working on my raspberry pi.
I have written my sd card with raspbian and the pi works well (red LCD glows all the time , and greed LCD flickers (fades on and ...
1
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0answers
639 views
Install Windows 10 IoT on 3B+?
I bought a 3B+ a few months back and have been experimenting with it with Raspbian, but I recently discovered it is possible to run Windows 10 IoT on it and since I am mainly a C# developer, I want ...
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0answers
1k views
Autostarting Chromium (Edit: How to connect to the local Session on Pi?)
I just want to auto start Chromium on boot and I followed Method 1 over at
this site.
The same Method is used in the Top Answer here.
All in all it is about adding the command for starting the ...
1
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0answers
24 views
How do I stop my HDMI going off
for some reason, after a while the screen connected to my RPI 3B+ goes off, and stays off, until I unplug it and plug it back in again. I only run in console mode, and running alt+F[1-4] does nothing,...
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0answers
940 views
Disable mouse acceleration on Raspbian Stretch
I can't figure out how to change the mouse acceleration setting such that the change is persistent. Changing the value in the Preferences > Keyboard and mouse settings keeps resetting every time I ...
1
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0answers
31 views
My raspberry pi 3+ suddenly stopped displaying
I've been using this raspberry pi for months to run LibreELEC to run Kodi. One day it didn't let out a HDMI signal. I no longer am able to a HDMI signal at all, my SD card is fine, I even reinstalled ...
1
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0answers
218 views
raspberrypi3 bluetooth socket problem
I have write program for raspberrypi3 bluetooth communication with hc05 ,but most of the time I am getting error
bluetooth.btcommon.BluetoothError: (110, 'Connection timed out')
how can I solve ...
1
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0answers
409 views
Regarding ttyS0 and ttyAMA0 of Raspberrypi b+
Is it possible to communicate at the same time with raspberry UART(ttyS0) port Rx and Tx and ttyAMA0 (inbuilt Bluetooth) Communication?
In my current project, I am doing the serial communication of ...
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2answers
477 views
AM2302 no signal using Raspberry Pi 3
I am trying to setup a AM2302 (DHT22) to use with Raspberry Pi, and unable to get a signal. What I need help is to be able to conclude whether the problem is due to (1) sensor fault (2) wiring fault (...
1
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1answer
3k views
Difference between iface wlan0 inet manual and iface wlan0 inet dhcp in wifi to ethernet router?
I have developed a wifi to ethernet router. Wifi is connected to my home router having internet and ethernet is connected to my laptop( just for testing).My laptop is not getting internet, but it gets ...
1
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0answers
96 views
Remote internet options
I am looking to set up a RaspberryPi 3 for a trail cam and I have seen multiple option for internet access that are a little dated. Wondering if there is anything more "up to date" that I am not aware ...
1
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0answers
40 views
UART 0 PCLK not registered (pi 3)
I'm using a rpi 3 and so to use the UART 0 I had to disconnect the bluetooth from it:
enable_uart=1
dtoverlay=pi3-miniuart-bt
dtoverlay=midi-uart0
in /boot/config.txt
It works great but now at ...
1
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0answers
231 views
SONY TV as Display / Monitor
Background:
I have successfully used pi-3b+ to display on LG LED TV, New model Sony 4K LED TV.
Requesting your support:
The year 2011 SONY 40NX710 model is showing blank (No desktop / text-console).
...
1
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1answer
337 views
Cant install php
I'm kind of new to the linux os and I'm having trouble installing php. i needed a few tools for jasper which alwys show up in the error message.
sudo apt-get install php -y
Reading package ...
1
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1answer
186 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 ...
