Questions tagged [pi-3b+]
Use for questions specific to the Raspberry Pi 3 Model B+
708
questions
0
votes
2answers
59 views
Command for checking all devices attached to RPI
Is there any command for listing all devices attached to RPI(light bulbs, buzzers, USB-s, etc.)?
If there is no that command, how can I check it?
1
vote
1answer
202 views
Rpi3B+ buster USB to Serial (/dev/ttyUSB0) Communication Problem
I'm trying to establish a serial communication between my Raspberry PI 3 B+ - running on Raspbian 10 Buster - and a testing machine I have. The normal behavior of the machine is to send test related ...
0
votes
0answers
22 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 ...
2
votes
2answers
102 views
Adding I2C Bus with dtoverlay Does Not Show Up in i2cdetect
I am trying to set up multiple I2C interfaces on my pi.
I have added the following lines to my /boot/config.txt and rebooted:
dtoverlay=i2c-gpio,bus=4,i2c_gpio_delay_us=1,i2c_gpio_sda=29,...
3
votes
3answers
175 views
Cannot set static IP address for Wi-Fi
I am trying to make static IP address on RPI 3B+ for both ethernet and Wi-Fi.
I was following this answer(How do I set up networking/WiFi/static IP address?), but still could not do it.
So far I ...
0
votes
0answers
30 views
Voltage troubles with Pins (Relais stays on) [duplicate]
I am having troubles setting a simple Relais to On and Off.
My code is quite simple:
GPIO.setup(RELAIS_PIN, GPIO.OUT)
GPIO.output(RELAIS_PIN, GPIO.HIGH)
time.sleep(2)
GPIO.output(RELAIS_PIN, GPIO.LOW)...
2
votes
2answers
34 views
persistent canbus data logging during power loss
I am trying to setup a robust raspberry canbus data logger. The pi will be installed on a mobile vehicle where the power to the pi is disconnected every time the vehicle is switched off, which will ...
-3
votes
1answer
43 views
How to send data wirelessly from Raspberry pi to another network at remote place? [closed]
I have to live stream video feed captured from rpi to the remotely placed device which is connected to another network. Please help me finding any link or any stack exchange post.
My rpi is connected ...
0
votes
1answer
20 views
Stacking together two I²C hats with different voltage
I plan to make a domotic system based on a raspberry pi.
I choose a grove hat to connect sensors and relays, but I need a digital potentiometer and grove system does not have that.
So I plan to buy ...
1
vote
1answer
169 views
How to connect two BME280 sensors via I2C to a Raspberry Pi 3B+
I have a Raspberry Pi 3B+ and I bought two BME280 sensors (specifically these) and I would like to connect them via I2C. I read that you can do software multiplexing but all the information I am ...
1
vote
0answers
36 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
37 views
ssh, shutdown problem, pi 3B+
I could not find answer to my question reading the forum, Im having unusual problem with my new pi 3b+. I'm able to connect my Pi with ethernet cable, and I can ssh to it. So no problem with ...
0
votes
1answer
97 views
Raspberry pi access point: To use bridge or not?
I have followed this documentation to set up the wireless access point on my RPi 3B+ successfully : Documentation link
I followed this until the step: Using the Raspberry Pi as an access point to ...
0
votes
0answers
32 views
Can you use your pi's Hostname to ssh into your Raspbarry Pi 3 from outside your network? [duplicate]
I'm trying to ssh into my rpi from outside of my network but it is not working. I am using ssh username@raspbarypi to try and get in but no luck. I have also tried to use the IP address like so ssh ...
0
votes
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
1
vote
2answers
37 views
Determining how specific services were started?
I have a Raspberry Pi which is running well, and am looking at creating a status app for it. I have some services that are run on startup, and I want my app to check that they are running, and if not ...
0
votes
1answer
66 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 ...
1
vote
3answers
43 views
RaspberryPi turns on but wont start
So I come home and the power strip in which I left the RaspberryPi has tripped and it was off. I restart it, but I notice that the RaspberryPi wasn't giving any output when I plugged the monitor in. I ...
0
votes
1answer
25 views
I used anaconda3 python 3 run the following code appears, NameError: name 'TurleControl' is not defined.How to fix?
import turtle
import sys
from PyQt5.QtCore import*
from PyQt5.QtGui import*
from PyQt5.QtWebEngineWidgets import*
class TurtleControl(QWidget):
def __init__(self,turtle):
super(...
0
votes
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 ...
0
votes
1answer
125 views
New RPi OS kernel panics with VFS: Unable to mount root fs on unknown-block(179,2) not using NOOBS
Hi I have 6 Raspberry Pis and none of them have encountered this error when using this EXACT setup. I boot up. Get a bunch of messages telling me that my CPU swapper is not tainted (not official ...
0
votes
1answer
54 views
Can you switch from connecting the RPi from pifi access point to an actual router access point
So for a robotics project I have in mind I'm trying to create an access point on my rpi so that I can directly ssh into it without using wifi from another router. But the problem is that I'm not sure ...
1
vote
2answers
62 views
No escape key on keyboard
My Logitech Keys-to-Go bluetooth keyboard does not have an ESCAPE [ESC] key. I discovered that I can use the "ctrl-[" keyboard combination as a workaround to get [ESC] functionality with this keyboard....
0
votes
2answers
92 views
I can't connect to wifi although I can see the networks
I'm new to Raspberry Pi and I have to make a script based on WiFi connection, but sadly I can't use it.
I have a Raspberry Pi3 Model B+ with the NOOBS sd (the one given with the Premium Kit).
I ...
0
votes
0answers
41 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 ...
0
votes
0answers
79 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 ...
1
vote
3answers
329 views
Unstable Ethernet connection on RPi 4
I run a headless Raspberry Pi 4 (4 GB) which is powered by the official USB-C power supply. I operate the Pi 4 (Raspbian Buster Lite) via the ssh protocol (putty) from a Windows machine.
I realized ...
1
vote
1answer
22 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). ...
2
votes
1answer
112 views
Editing Main Menu Item
I have an odd (to me) problem with a menu item. When I click Programming, I see the launcher I want but it has the wrong path. That is what I need to correct. When I right click and select properties, ...
1
vote
1answer
44 views
Whether using a 3.4 Ampere adapter or Qualcomm QC 3.0 adapter to power a Raspberry Pi 3B+ can cause damage? [duplicate]
So here it goes,after looking out hundreds of pages regarding powering of Raspberry Pi 3B+ still some hesitations here.
I have totally read this out very detailed & nicely written answer by ...
2
votes
1answer
68 views
How do I setup DHCP on a 2nd port?
My Main Question
How do I configure my RPi so that I can share its internet connection with an IoT device plugged in via ethernet cable in addition to sharing its internet connection via its wifi-...
0
votes
2answers
351 views
RP Automatic Updates
Does Raspberry Pi working with Raspbian make any automatic updates without our permission? If yes, How to disable it?
1
vote
1answer
103 views
Controlling 5 LIDARs using Raspberry Pi
I came across this instructable which illustrates how to connect the TFMini LiDAR to the Raspberry Pi. In the list of materials, he said that I will be needing a Resistor (between 100-1k Ohm) (...
0
votes
1answer
82 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 ...
1
vote
1answer
104 views
GPIO pin (BCM 12) acts differently on PI3 and PI4
The following code is running on PI3 and is working perfectly fine. I try to provide a short description of what the code does. In this code I first set the BCM 12 as the pin of interest for my sensor ...
5
votes
1answer
80 views
Is it possible to configure a Raspberry Pi 3 to become a Bluetooth adapter for a desktop PC?
Stupid question, but I've been looking everywhere. I want to configure my Raspberry Pi 3 so that it can basically serve as a bluetooth adapter for my desktop pc. Is this possible, or does it only work ...
0
votes
1answer
21 views
How do I set up an RPi 3 as a 1-port eth0 router?
I want to set up my RPi3 to be a 1-port router running a webserver.
I know how to make a wireless access point and connect my PC via hostapd/dnsmasq, and I know how to set up a webserver on the Pi.
...
0
votes
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 ...
0
votes
2answers
50 views
Ethernet to connect directly to device with static IP and no DHCP, Wi-Fi to connect to WLAN normally
I have a Pi3B+ (running Buster) that connects to my WLAN nicely via normal wpa_supplicant.conf means.
~ $ ip -4 addr show | grep global
inet 169.254.60.134/16 brd 169.254.255.255 scope global ...
0
votes
0answers
23 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
votes
1answer
79 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 ...
0
votes
0answers
46 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 ...
-1
votes
1answer
92 views
Response to a incoming call using python script
I am trying to implement a system using Raspberry-pi and SIM-800 modules. Now I can see incoming calls from my python script, but it can not parse data.
import serial
serialport = serial.Serial("/...
0
votes
0answers
36 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 ...
0
votes
1answer
39 views
Counting Two Pulses Generated By Rotating Motor
I want to Count pulses based on some Conditions which are:
(1) Count all the rotations generated during motor Rotations.
(2) Count all the motor rotation pulses when an additional signal is enabled.
...
0
votes
0answers
75 views
Why UDP connection from hotspot raspberry doesn't work
To start with I have to say I have seen few similar questions but none of those could help me with resolving my problem.
My setup is, two raspberry Pi 3 B+ with Raspberian on board(updated). One of ...
0
votes
0answers
35 views
When I install volumio in my raspberry, I got the error as below, how to solve the error:Failed to open ALSA device “hw:1,0”
When I install Volumio OS in my raspberry 3b+ and plan to play music withe it, but when I play a music from the GUI of volumio, I just got the error as "Failed to open ALSA device "hw:1,0";No such ...
0
votes
0answers
35 views
irsend pauses for significantly too long
I'm having a problem replaying a raw sequence using irsend.
The sequence below is very simple. Very long pulse (6700us), followed by a very long pause (3400us) followed by two short pulses and two ...
0
votes
0answers
57 views
Installing PiVPN failed to connect port 443
https://www.youtube.com/watch?v=WA7QTM9hovQ&t=119s
The first time I tried to install PiVPN on my Raspberry Pi 3 B+ (Linux raspberrypi 4.19.58-v7, Raspbian GNU/Linux 10 (buster)) with the steps in ...
0
votes
0answers
80 views
Audio output not working
I bought a raspberry pi3b+ for my son that is connected to the TV, I installed both raspian and lakka and i configure it, but there is no sound coming from the TV via the HDMI port.
After several ...
