Questions tagged [pi-3b+]
Use for questions specific to the Raspberry Pi 3 Model B+
1,114
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i2cdetect shows random addresses for VL53L0 device
I plugged the VL53L0 distance sensor to RPi 3B+ onto the I2C pins. Specifically, red to 3v3 Power, white to SDA, blue to SDC, and black to the ground (I left yellow and green unplugged).
Now, ...
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29
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Is there any way to run a Blu-Ray player with a Raspberry Pi 3 Model B+?
I realized the other day that instead of buying a new laptop for a single purpose such as this, I could possibly use my RPi3 B+. Unfortunately, I have not found any articles or contemporary mentions ...
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35
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Creating a Wireless Access Point with an ethernet cable on the same subnet
I have a raspberry pi 3b+ that I’ve configured to act as an access point. I’ve followed the official Raspberry Pi documentation to accomplish this (See: https://www.raspberrypi.com/documentation/...
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29
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Rpi3 stuck on rainbow screen on both cards after cloning of SD card
I had a working version of Openmediavault on Raspberry Pi 3b+ fully updated and confirmed to be rebooting without errors.
I powered down, removed SD card and imaged onto a windows machine using win32 ...
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2
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147
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Why does the latest raspbian update disable some wifi frequencies?
I started with a fresh installation of Raspberry Pi OS Lite (Release date: May 7th 2021, Kernel version: 5.10) and checked wifi state with iw reg get iw list.
global
country DE: DFS-ETSI
(2400 - 2483 ...
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79
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Almost every GPIO input pin is showing up as pin 22 [closed]
EDIT: The problem ended up being that the ribbon cable going to my breadboard was rotated 180º. I was taking this into account, but doing so incorrectly. Once I correctly labeled the rotated pinout, I ...
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113
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Remote desktop XRDP not working for Pi 3 Model B+
I would guess a similar question has been asked already, so any hint pointing me to this direction is welcome.
It would be my third Pi install and out of the blue I can't connect via XRDP as on the ...
-2
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2
answers
51
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Run a RaspbianOS system for rpi4 on rpi3b?
I have an OpenHab 3.1 installation on a raspberry 4 running. I'm currently using raspiBackup to create a full backup of the system and also having an .img file to restore it when needed via Etcher ...
- 105
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1
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130
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host proxying hotspot on rasberri pi b
I want to make my rasperry pi able to 1 host a wifi hotspot, with an external usb 2ndary wifi chip, and 2 redirect all clients through a socks5 proxy.
I want to host a hotspot using the integrated ...
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1
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29
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Problem booting raspberry pi 3B +
Several years ago, I bought a raspberry pi 3B +.
I would like to reuse it. I flashed raspian (https://www.raspberrypi.org/software/) onto an sdCard and I am using my phone's charger whose output is 5V ...
- 111
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23
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Is Raspberry Pi 3 B+ power supplier compatible also with Raspberry Pi 2?
It seems that my Raspberry Pi 2 power supplier stopped working (the power led switchs on and off periodically).
Due to this I was wondering if my current Pi 3 B+ power supplier can be used also with ...
- 103
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89
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How can a Raspi 3B+ simply stop booting, and how can I recover it?
I've recently run into a strange issue with my fairly new (< 1 year) Raspi 3B+: Yesterday evening it simply stopped booting! The red LED shines, and the 3.3 V and 5 V GPIO pins still supply ...
- 444
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I recently installed the Remote-SSH VSCode extension, and I think it's causing my Pi to become unresponsive after random amounts of time
Background information: Previously, I used WinSCP+Putty to connect to my Pi on my home network, I do have it set up so I can remote in via SSH if I want to work on stuff from whatever location. I do ...
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280
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How to control multiple Raspberry Pi from single server
Using raspberry pi 3B+ I am detecting RFID. I have done network booting of these raspberry pi in order to avoid the SD card corruption from Debian GNU desktop by following this link.
Now I want to ...
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1
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Why DHCP logs are missing in dnsmasq-Raspberry Pi-Unifi-esp8266?
I have a network made of Rpi, ubiquities, and esp8266. Raspberry pi is configured as the eth0 to eth1 router. Eth1 is made using a USB to ethernet converter. The Main ubiquiti is connected to the eth1 ...
- 181
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315
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How to clone USB Boot drive to smaller SD Card
I am currently running on my raspberry pi 3B+, a headless install of Ubuntu server 20.04 booting off a 32 GB USB drive.
However since i am only using around 4GB of the 32 GB Drive, I am hoping to ...
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2
answers
334
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Controlling WS2812b LED strip produces inconsistent and uncontrollable output
Background
I'm trying to control a single WS2812b LED strip from a Raspberry Pi. I've followed this tutorial from raspberrypi.com (with the exception of Prep & Installation step 4, because I ...
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1
answer
35
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Problem with Pyserial when using Xbee and GPS on rasp pi 3B+
i am currently trying to get some data from gps and try to send it through Xbee to a pc. To do this, i was using multiprocessing. At first getting the GPS data and sending data through Xbee was done ...
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Pi 3B+ aarch64 conda illegal instruction
I just installed 2021-05-07-raspios-buster-arm64-lite on my Raspberry Pi 3B+.
uname -a outputs:
Linux raspberrypi 5.10.17-v8+ #1421 SMP PREEMPT Thu May 27 14:01:37
BST 2021 aarch64 GNU/Linux
But ...
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151
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Crontab function not executing
Hell My name is Patrick and a Rpi newbi. I have made this project" industrial strenght cat feeder" from the instructables website. Everything is working 100% aside from the crontab function. ...
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52
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Recover zero-byte size file on attached USB storage
I have an attached USB hard disk drive on my Raspberry Pi with an NTFS file system used as a network-attached storage.
My problem is after a while, some big files, like 2GB and up (usually ISO, Zip, ...
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401
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How to find client signal strength from the Rpi command line?
I have a network made of Rpi, ubiquities, and esp8266. Raspberry pi is configured as the eth0 to eth1 router. Eth1 is made using a USB to ethernet converter. The Main ubiquiti is connected to the eth1 ...
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732
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Failed building wheel for pandas on model 3B+
I'm trying to install pandas in a Python virtualenv on a RPi model 3B+,
but its wheel fails to build.
Pandas does however successfully build/install for the system Python (py3.7.3, pip 18.1).
Could ...
- 101
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42
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heartbeat sensor for pi
i want to measure the heartbeat using the pulse sensor. i connected the pulse sensor to a mcp3008 adc and the pi.
this is the code i used
from pulsesensor import Pulsesensor
import time
p = ...
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1
answer
136
views
one wire ds18b20 showing no output
i connected a one wire ds18b20 temperature sensor to my pi 3b+.this is the code
import time
from w1thermsensor import W1ThermSensor
sensor = W1ThermSensor()
while True:
temperature = sensor....
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answers
104
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3B+ won't boot from USB Hard Drive
I flashed Raspbian to a 1TB Samsung Hard drive, and when I try to boot it using a USB hard drive reader (which gets power from a barrel connector), The red light turns on, But there is no Yellow ...
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1
answer
701
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Raspberry Chromium v88 (88.0.4324.187) keeps crashing (Error code : 11)
I have problems with kiosk application on Raspberry. I'm using chromium as digital signage presentation. System was working fine, until few days ago. I get crash report Error code 11.
From error log, ...
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187
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Toggling GPIO via BCM2835 registers on RPi 3B+
I am trying to toggle GPIO directly by setting BCM2835 registers. This is the code i wrote for this purpose and I wonder why doesn't it work. If the approach is wrong, then how to access GPIO ...
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2
answers
131
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Can't access my RPI 3 using SSH
I used to be able to SSH my RPI without difficulty but on resurrecting my PI and reinstalling Raspbian SSH does not work. I can ping the Pi OK. I have tried switching off VPN and avast but still no ...
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1
answer
51
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Maximum usage USB and GPIO power consumption
I use a raspberry Pi3B+ for a home automation installation. On which I have connected several peripherals. In particular an RFID reader and an OLED screen. But I notice that after a while, these ...
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2
answers
314
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Gigabit Ethernet on RPi3B+
I have a problem with my network interface. My ISP provides a 1000Mbps download connection, but doing a speedtest from my raspberry pi 3b + it stays below 10Mbps so I ran ethtool eth0 and I find that ...
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84
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Any particular reason why my RPi 3B+ reports 20x worse results from Speedtest.net? [closed]
I have RPi 3B+ connected to exactly the same router as my PC (wired!).
I have installed Speedtest.net client using this guide. When executing speedtest-cli --simple, I am getting nearly exactly twenty ...
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96
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Just plugging the USB with OS in it doesn't make the RPI3B+ boot
Flashed RetroPi OS into a flash disk. I plug it to the nearest USB slot to the board and the Ethernet. When I connect the power cable and the hdmi, it doesn't boot. I can't test if my Pi still works ...
user134779
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28
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Turning off a Raspberry Pi 3 B+ not connected to Mac
I've seen lots of questions about safely turning off the Raspberry Pi but I haven't found what I'm looking for.
My Raspberry Pi is connected directly to the power adapter and not to my laptop.
What is ...
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1
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17
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RPi3 would not start (red led on always), but then it started without any explanation
Yesterday, electricity went down at the location where I have an RPi3 setup. After electricity came back, the pi did not start. I went to see what's happening with the pi, and indeed, the red led was ...
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2
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269
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Do I need a base resistor for a transistor? [closed]
All
I plan to drive a 51 ohm LED using the pi's 5v pin using a 2n2222 transistor connected to the GPIO. Do I need a resistor on the base pin of the transistor or can I connect it directly to a GPIO ...
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527
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Unable to import pyserial or serial in python 3.4.2
I am not able to import pyserial or serial module in a python script. Package is properly installed (I think) using the following commands:
sudo apt-get install python3-serial
pip3 install pyserial --...
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1
answer
592
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Serial port fails after some time
I use a RPi 3b to request and receive float values over serial from an Arduino Nano (fake). For that I use python and pyserial.
Arduino Loop:
if (Serial.available() > 0) {
String req = Serial....
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1
answer
67
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USB Wifi not working on boot
I am using TP-WN727N usb wifi module with raspberry pi 3b+. It using MT7601U driver. Wifi is working fine if I reconnect it but not detecting after reboot.
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66
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Raspberry pi ethernet cable no longer working
I was working on Raspberry pi3+ for few days and didnt have any issues today unexpectedly after connecting it the ethernet LEDs didnt light up i tried 2 different ethernet cables the issue persisted ...
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While trying to install a fan, I accidentally plugged fan's GND and 5V pins to RPi 3B+ pins 2 and 4 (both 5V)
Instead of plugging the fan in pins 4 and 6, I accidentally plugged it in pins 2 and 4. The Pi immediately shut down. There are no signs of life other than the red LED that is on all the time. Is the ...
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2
answers
352
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433MHz RF communication between Arduino + Raspberry Pi
I bought a 433MHz receiver and transmitter to send data from a Raspberry Pi 3 to an Arduino Uno.
I searched the internet for tutorials, Arduino StackExchange and Raspberry Pi StackExchange but I did ...
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89
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Raspberry Pi cooled with a Peltier cell [closed]
I've an RPI3B+ mounted in an IP65 box and placed inside a greenhouse. Obviously the CPU becames really hot during the day and it reaches 80°C (even after the installation of the small heatsinks). I ...
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1
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146
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Pi 3B+ External Activity LED
How can I add an external activity LED to Pi 3B+?
Like to my Pi casing.
-1
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1
answer
709
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Install Oracle on Raspberry
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I need help!!
I'm doing a school project where we have to install Oracle on our Rapberry pi 3.
We have already download from Oracle website
Basic Package(RPM) -SQL*Plus Package(RPM) -SDK Package(RPM)...
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26
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How to change the menu icon 2021
i have a Raspberry Pi 3 model B+ I have installed Raspbian OS on it.
So i have looked it up but all i can find is outdated guides. i have tried to replace the launch image in /usr/share/raspberry-...
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194
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Can i power my Raspberry pi 3 b+ with a micro-USB to USB thats connected to a USB charger?
I read in the manual, that u should charge it with 5V and 2.5 amp, but im not sure. I already read, that a undervoltage can damage the pi and that USB 3.x would be enough, but I still dont know how ...
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1
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253
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Rpi 3B+ "Unsupported board type" Flashing Power Light
I have a Pi 3B+ that wont boot. It's a "new" unit that I received as a gift a few years ago and am just now taking it out of the box and trying to use it.
I've tried several OS images, but ...
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1
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26
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Pi addressing ping to the wrong destination [closed]
I have a private network that requires end to end connectivity
pi 1 -> device 1 -> device 2 -> pi 2
The traffic is getting all the way from pi 1 to pi 2
However, the return doesn't work
...
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0
answers
323
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Raspberry Pi 3+ / 4 wifi connection problem
I am setting up the RPis 0W, 2, 3, 3+, and 4 for some tests. For the connection to the internet, I use WiFi. The setup worked as expected till the Pi 3+, which refused to connect to the router. Then I ...
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