Questions tagged [pi-3b+]

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

315 questions with no upvoted or accepted answers
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How to improve wireless throughput on RPi 3 b+ in AP mode?

I've upgraded from 3 to 3 b+ in hopes of improving throughput on wireless network (using built-in wireless chip as AP and wired connection on the other end). I've configured it to work in 802.11ac ...
1
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1answer
513 views

Wifi conflicts with bluetooth: impossible to use BT mouse + keyboard with wifi turned on

2 years later, I still have the same issue. In Raspbian, using the built-in Bluetooth controller: Connect a BT mouse Connect a BT keyboard Turn on the built-in Wifi and connect to a network ...
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0answers
34 views

A weird bug in Raspian

I just updated my Raspberry pi 3B+, after the reboot all windows get their “top” cut of like this: And everytime the cursor is outside the current window it appears as an “x”, I hope you can help me ...
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1answer
587 views

Pi 3 model B+ won't boot

I was using this specific Pi for over a month now without any issues. Today, out of the blue, the screen started flickering. I decided to shut it down. When I replugged it, the green led wasn't ...
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0answers
1k views

Can't Login to Pi0 console from Pi3 B+ via UART Serial USB-TTY Adapter

I am new to RPi's so bear with me please: I am trying to log in to the Pi0 console via sudo screen /dev/ttyUSB0 115200 but I just get a blank screen. Ouput of dmesg | grep tty: [ 0.000000] ...
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1answer
758 views

Raspberry Pi Internet Issues

On my raspberry Pi 3B, attempting to access the internet for downloads fails. Anything that uses it (chromium, apt-get, etc) does not work, giving errors such as DNS server not found, or just hanging. ...
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0answers
581 views

Issue on Display Resolution

I am unable to set the correct screen resolution when trying to connect TV/Monitor(via HDMI) with RaspberryPi3 at runtime, the following are the steps: Disconnect TV if already connected Boot ...
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0answers
8 views

Error E405 while trying to install discord.js with npm

I'm trying to host a Discord bot in my RPI3B+, but the required node.js package discord.js always fails to install. I've tried purging both NPM and Node.js, and i have upgraded my Raspbian using sudo ...
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0answers
21 views

Raspberry pi PiVPN Tap Configuration

I'm currently trying to set up a VPN server in the TAP configuration to allow clients joining to be able to see everything on the network and reference them as if the client was connected physically ...
0
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1answer
27 views

Desktop still present after removing LXDE?

I am experimenting with a RPI 3B in Kiosk mode. The RPI has a 480x320 LCD screen attached. The RPI is running Rasbian Buster image. The OS is fully patched. I have a Qt UI program that should be the ...
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1answer
13 views

Duplicate Audio input from USB

I am trying to duplicate my Line In over USB Sound Card. I have RPi 3 B+ and USB Sound Card with Line In. Currently I have an application for stream over IP the Line In audio of USB sound card. Now ...
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0answers
23 views

Can't connect waveshare hat to raspberry pi 3b via python3 to obtain gps

I'm stuck with my waveshare hat and it would be cool if you could help me. I would like to obtain the gps location. I'm a python beginner and tried to use some already written code from this websites:...
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0answers
21 views

Why i can't write OBD 2 value of a car to firebase?

Hello guys im having a problem sending a value to firebase here's the code that i use import obd connection = obd.OBD("/dev/ttyAMA0") while True: cmd1 = obd.commands.RPM response1 = ...
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0answers
37 views

How to convert hexadecimal value of OBD(On-Board Diagnostic) to a readable value

Hello guys im having a problem about the conversion of hexadecimal of obd2 of a car to readable value like vehicle speed which is in 'km/h' here's the code that i use import serial ser = serial....
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14 views

Sending command to the motor via python code while connecting by VNC wiever

We are making a project. Our python codes are in the raspberry. When raspberry is connected to the monitor via HDMI, we can directly give a command to our motors by using our python code and it works ...
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0answers
24 views

Pi does not find NOOBS files

My Raspberry Pi is not finding the NOOBS files. I have tried to make the SD card bootable, but it did not get me as far as if I just unzipped NOOBS on to the Sd card. The screen is blank. Any ...
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0answers
29 views

Using expect for authentication

I have installed the Nordvpn linux app After using it for some days I have realised I need to login again sometimes. Login is done by the command and the response is: root@root:~ $ nordvpn login ...
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0answers
11 views

Raspberry Pi3 B+ Windows IoT does not boot

I am using Raspberry Pi3 Model B+ embedded card and I am trying to flash Windows IoT core. I had some issues with it while it does not boot. I followed the steps described here and used RaspberryPi ...
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0answers
10 views

Mini usb 2.0 microphone not detected

I googled but didnt find an answer. I bought usb microphone like this: https://www.ebay.com/itm/USB-2-0-Mini-Mikrofon-Stecker-f-r-Windows-PC-Mac-Linux-Raspberry-Pi-Mikrophon/112352215940?pageci=...
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22 views

Rainbow screen issue with raspberry pi 3 model b+

I am using Raspberry pi 3 Model B+ and using Ubuntu Mate operating system not Raspbian Os I am also using raspberry pi 3 supportable original charger of 5.1V 2.5A. still i am facing the same rainbow ...
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0answers
34 views

How to create a person or head (not face) detection using open CV that are not too slow when run in Raspberry Pi 3B+?

Hello guys my problem is creating a program that can detect the head(not face) or human detection for my project One of the program that i see is too slow for raspberry pi 3B+ which is this : https:/...
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0answers
45 views

Raspberry Pi 3B+ successfully connect and pair but can't receive data from OBD II

Hello guys my problem is i cant recieve any data from OBD II to Raspberry Pi 3B+ Here the materials that i use: Raspberry pi 3B+ ELM327 -> OBD II Operating System of Raspberry Pi -> https://medium....
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0answers
46 views

How do I read all registers of an INA219 sensor via SMBus in Python at once?

I'm trying to Connect my Raspberry Pi 3B+ with a Raspbian 10 to an INA219 current sensor (that also returns voltage and a premultiplied power) via SMBus in Python 3.7. After destroying one Raspberry ...
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0answers
26 views

Timed trigger for GPIO input

I'm running a raspberry pi system that records fish as they swim passed an IR break beam sensor at a fish ladder. So far the system works well but I'm trying to cut down some of the false triggers. ...
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1answer
23 views

Using pigpios waves and audio output

I am using a Raspberry Pi 3 B+. I want to play audio through the 3.5mm jack and use PWM at the same time or successively to simulate a IR-Remote. I know that you can't use the hardware PWM while ...
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0answers
15 views

Restarting another python script that is running from a running python script

I know that os.execl(sys.executable, sys.executable, *sys.argv) restarts the current running python script. But what if I have two scripts that are running and under certain conditions, the main ...
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0answers
56 views

RF ISM 433MHz Module Using Rpi RadioHead Low Speed Problem

I have a rf module 433Mhz which consist of a transmitter and a receiver, I used virtualwire and Radiohead library in Arduino and it's pretty fast. When I shifted that to rpi there were no dedicated ...
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0answers
11 views

rp3 can't boot openelec

I am using rp3 and trying to install openelec from here and using the second one for rp2 and 3 I tried to format the sd card to fat32 Tried to copy the image after extraction using dd Tried using ...
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0answers
17 views

CompoundPI unidentified server problem

I am trying to use CompoundPI (https://compoundpi.readthedocs.io/en/release-0.4/quickstart.html) with two RPIs and an ubuntu client. CompoundPI connects multiple RPIs, that each of them has a picamera,...
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0answers
70 views

Rapberry Pi 3 | Chromium Aw Snap

I'm running into a recurring issue and I can't seem to find a resolution for it that works. Pi info: Linux version 4.19.79-v7+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-...
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0answers
21 views

bind event from evdev to GUI wxpython

I have buttons and joystick as in the image below and I am reading events from these inputs on raspbian with the evdev library, I am also running a GUI using wxpython. My question is how can I bind ...
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0answers
48 views

Getting error on Raspberry pi 3 while trying to run chromium in app mode

$chromium-browser --window-size=1080,960 --window-position=0,0 --app=/home/pi/Desktop/python/LMMS.html --disable-quic --enable-tcp-fast-open --ppapi-flash-path=/usr/lib/chromium-browser/...
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0answers
29 views

unable to scan the ip address of Raspberry pi 3 B+ by using advance ip scanner

I have connected the raspberry pi to the laptop without using Ethernet cable (I am getting power (5v) from the laptop). I have inserted a file in the SD card of Raspberry Pi for WiFi connection ...
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0answers
56 views

Enable Fine Timing Measurement (FTM) on Raspberry Pi 3B+

Is there any way I could create a mesh of Raspberry Pi 3B+ access points supporting the IEEE 802.11mc standard? I'm interested in experimenting with the Wi-Fi RTT Android API for indoor positioning ...
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0answers
40 views

Why the script hang for 2 days?

I am running a python script to check the internet connection of a wifi network. It is being run for every 10minutes. Afwer a one month of working, the scheduler is not invoking the actual function ...
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0answers
209 views

VLC stream RTSP USB webcam

I'm trying to stream a usb camera using VLC. I used this page to get it working on a pi zero with a raspberry pi camera attached to it. On a second RPI 3B+ I'd like to do the same only with a USB ...
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1answer
42 views

Raspberry Pi 3B+ input pin strange behavior

I have few switches connected to Raspberry Pi inputs. Internal pull up resistors are enabled. When I connect pin to the ground Raspberry Pi behave fine - pin state is low. However when I disconnect ...
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0answers
24 views

Mode of configuration on Zigbee

I connected one Zigbee with an overlay shield fixed on the RaspberryPi and one Zigbee attached to a vibration sensor. What mode should I configure on the Zigbee's?
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0answers
24 views

Raspberry PI 3B+ won't connect to smartphone Wi-Fi hotspot if it's “Shared wifi” instead of 4G+

I have a Samsung Galaxy S8 and a Raspberry PI 3B+. The PI can connect to a normal Wi-Fi without any problems. The PI can connect to my S8's hotspot if internet is from 4G(+) The PI CAN NOT CONNECT to ...
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0answers
29 views

chromium os on rpi3 is not supporting video streaming nor I can watch live or other videos on Chrome except for YouTube

I have installed chromium os on rpi3 b+ and while Playing any live video or any other video except on YouTube it's showing video not supported what should I do to fix this issue please help
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1answer
72 views

Raspberrypi unable to read 2000 ppm encoder

I am using a DC motor attached with a 2000 ppm incremental encoder. I am using RPI to count the number of ticks, my code works fine but I am not able to calculate all the 2000 ticks. Any help would be ...
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0answers
34 views

kernel warning in dmesg

I've bought a new 3B+ and when I add dtdebug=1 to config.txt in /boot the following shows up in dmesg. I'm also having a problem where a GPIO extension board isn't being picked up at all, is this ...
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0answers
46 views

Installing HY463xx touchscreen driver

I am trying to install HY463 touch screen driver on to raspberrypi-cm3 buster lite. I have installed drivers before. But Their website does not provide any Makefile or any documentation for me to ...
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0answers
81 views

No ethernet on RPi 3B+

I have 3 RPi 3B+, all exhibit the same behaviour. 2 were bought a while ago, one more recently. When starting, on lucky days, they will get an IP from DHCP. If not lucky or upon first reboot, they no ...
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1answer
103 views

Why the message “raspberrypi dhclient: send_packet: Network is unreachable”?

I am having a raspberry pi jessie OS. I configured it as ethernet to ethernet router. eth0 is connected to a modem and eth1 is actually a usb to eth converter. Rpi get internet through the eth0 ...
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0answers
28 views

Combining potentiometers to register as buttons

Does anyone know how I could use 2 potentiometers (1 for vertical axis, other for horizontal) and combine them to register as buttons? I want to make a shifter for sim racing and I want to combine 2 ...
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0answers
24 views

How can we acquire an analog signal having both positive and negative parts , i.e. a bipolar signal, using Raspberry pi3 B+ module?

I am using raspberry pi 3 B+ board. I have to acquire analog voltage signal having both positive and negative parts, i.e. a bipolar signal How can i acquire this signal with the R-pi? I have tried ...
0
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1answer
102 views

RPi4B PCA9685 PWM Controlling Servo Problem

I have this RPi3 that I am running a bunch codes on it. It is communicating with a server and also I have python supervisor running on it. Now I am trying to set up the same system on RPi4. For some ...
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0answers
57 views

dnsmasq DHCP refusing to work. NordVPN hotspot on Raspberry Pi

I'm trying to set up a NordVPN hotspot on my Raspberry Pi 3B+ so I can connect it to my smart tv and get rid of Netflix region restrictions. I have everything set up properly but still dnsmasq DHCP ...
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0answers
39 views

Logitech F310 hot plug working on Pi 3 B+ but not on Pi Zero W

I wrote software in C for my work that reads Logitech F310 controller input and controls our vehicle accordingly. I wanted my software to be fault-tolerant, so I added code that checks the presence of ...