Questions tagged [pi-3b+]

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

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7 views

Application option vanished from menu

I just installed kali linux tools and menu with katoolin , the i went to check that tools got install or not in applications , but there was no applications option that just vanished ! All the ...
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1answer
216 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. ...
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1answer
77 views

Can Pi 3b+ be killed by wire under ethernet port

Can raspberry pi be killed by cable under ethernet port? I had moved pi on desk and placed it over a cable in area shown on picture (cable has only 5mm exposed wire), after that pi freezed and din´t ...
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1answer
24 views

A very dim red light and no green light at all

Yesterday when I tried to boot my Pi 3b+ like the usual, it's red LED lit up very faintly and it's green LED showed no activity, so I switched off the power supply and switched it back on again. This ...
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1answer
947 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 ...
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1answer
8k views

Ubuntu Mate 16.04 on Raspberry Pi 3 B+

I would like to get Ubuntu Mate 16.04 on the Raspberry Pi 3 B+. According to this thread this should be possible. Here is the summary on how they achieved it: Copy the following files from Raspbian ...
2
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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-...
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1answer
40 views

Updating from such a repository can't be done securely (Raspberry pi)

I'm running a 3B+ with Raspbian and I have a problem updating my raspberry pi 3b+ pi@server:~ $ cat /etc/os-release PRETTY_NAME="Raspbian GNU/Linux 10 (buster)" NAME="Raspbian GNU/Linux&...
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0answers
26 views

screen and serial UART connection gibberish

I'm connecting my iMac (10.14.16) to my RPi 3b+ (Ubuntu 18.04.5 LTS ubuntu ttyS0, uname -a = Linux ubuntu 4.15.0-1067-raspi2 #71-Ubuntu SMP PREEMPT Fri Jul 10 01:36:10 UTC 2020 aarch64 aarch64 aarch64 ...
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0answers
10 views

Raspberry pi b+ sensors doubt [closed]

We are trying to build a robotic arm which is supported by a circular bot which can move and collect items and segregate them into plastics, metals etc. is it possible to attach more than one sensor ...
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1answer
40 views

Raspberry Pi 3B fell to the ground, “4R7” box looks busted. Is dead?

I was toying around with the Pi, left it in a place where I should have not put it, and it fell to the ground. I picked it up again and noticed one of the small "4R7" labeled boxes was kind ...
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18 views

elecrow sensors on i2c serial line

I have elecrow's sensors like this one that I want connect to i2c hub and use it based on the address. first I'm trying to set my pi 3b+ to recognize at least one of them connected directly. I'm on ...
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2answers
108 views

BlueZ BTGATT-client.py WriteValue

I had a successful attempts with BlueZ-5.50 > test > example-gatt-client.py with ESP32 set as HeartRate Sensor Server.I am able to read from ESP32 which i modified to suit the BlueZ example. ...
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1answer
26 views

Control Raspberry Pi depending on Wifi-Users

I hope this the right place to ask this. I'm currently working on the following project: I'm creating a "digital dashboard", consisting of a tv and a Raspberry Pi 3B+. The tv just shows ...
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1answer
242 views

How make Raspbian boot faster from USB-stick (without SD-card) on a Raspberry pi 3 B+?

I already did things like disabling WiFi, Bluetooth, etc. but my gut tells me, there should be some USB-specific settings, which can make the pi boot faster. I am interested in these settings. My ...
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1answer
15 views

Network is down with eth0:0 over direct connection to PC

I have headless rpi3. I have problem when I connect RPi ethernet directly to PC. Network is going down after a while. My /etc/network/interfaces: auto lo iface lo inet loopback auto eth0 allow-...
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1answer
58 views

Connecting an Arduino Nano to a Raspberry Pi using Serial Cable on an a Pi 3B+ or Zero W

I wanted to connect an Arduino Nano to either my Pi 3B+ or my Zero W preferably my Zero. When I connected my Nano to my Pi Zero and ran a simple script with the python 3 serial library, it didn't work....
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0answers
32 views

Pi stopped booting after losing power - can it be recovered

I have had a pi running as a Bluetooth link to a meat-curing machine and it's been awesome! The thing has run without issues for like 45 days. Well today I decided to move it to a new room and so I ...
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0answers
24 views

How to present a slideshow with 'feh' with datestamp displayed on the photographs? [closed]

I want to show my photos in a slideshow and have the date displayed for each photograph. I tried it with feh, which is compiled with exif=1 I found --info and --drawexif but can't get it to work. feh ...
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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 ...
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1answer
105 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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2answers
90 views

Issue when installing python-package virtualenvwrapper

I am new to Linux and Raspberry Pi, so sorry if this is some trivial question or if I did not mention some important information. To my problem: I have a fresh install of Raspbian Stretch on a ...
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1answer
27 views

WiFi stops working on Raspberry Pi when SD card reader is overclocked

I'm having a very weird problem where if I overclock the SD card reader on my Pi 3B+ using dtoverlay=sdhost,overclock_50=100 the wireless stops working. Raspi-config says 'No wireless interface found'....
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27 views

Can the same SD card be used for Raspberry Pi Zero and Raspberry Pi 3A+ that is to be accessed wirelessly (SSH & wpa_supplicant)?

I wanted to use an older Raspbian 9 (Stretch) version of 2017/2018 because I wanted to use the "perf" tool which is not available for the current version. But the previous version was not ...
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2answers
354 views

Clarification on Access point as WiFi repeater, optional with bridge needed

Regarding the detailed instructions for Access point as WiFi repeater, optional with bridge here: Access point as WiFi repeater, optional with bridge Since the raspberry pi 3 b+ has only one radio, ...
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1answer
298 views

Raspberry Pi running python opencv on php

I try to use the php running the python: <?php $command=shell_exec('sudo python /var/www/html/FacialRecognition/simpleCamTest.py 2>&1'); echo $command; ?> But the result show in ...
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1answer
37 views

RPI 3B+ will not USB boot if wifi stick is plugged

I normally boot my RPI 3B+ from a USB SSD (RaspiOS Buster Lite, may 2020 version), but when I plug an external wifi dongle (Mediatek Ralink RT5370N) it just does not boot and the red LED stays on ...
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0answers
15 views

Having Trouble Pinging the Raspberry Pi 3B+ [duplicate]

I am unable to ping my Raspberry pi with the “.local suffix” yet it responds without the suffix. I have included some of the messages it is sending me when it boots below and included what I learned ...
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1answer
40 views

Unexpected Ping Response

I just got a new RaspberryPi 3B+ and have added an empty SSH file with no extension a wpa_supplicant.conf file that contains the following to my microSD card: country=US update_config=1ctrl_interface=/...
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1answer
19 views

Booting of RPi 3A+ fails for the Raspbian stretch 2018-03-13 and even for 2017-08-16

I have a 16GB micro SD card, on which raspbian strecth 2018-03-13 is installed (via win32diskimager, earlier formatted via SD card formatter). It works perfectly for my RPi zero model, but doesn't ...
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1answer
43 views

Enable Gigabit Ethernet on a Raspberry Pi 3B+ [closed]

I'm using a 3B+ rev 1.2 with a wired connection through a CAT7 Ethernet cable. Using speedtest I realised that I wasn't getting upload speeds higher than ~95Mbps, so I did a bit of research. pi@...
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0answers
18 views

Need for Additional Serial Port for communication with 3G module [duplicate]

I want to connect a UC15 3G Module to RPI 3B and use ppp protocol in order to connect RPI to internet over 3G. But the problem is that UART0 on RPI is already occupied by another device and also I can'...
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2answers
42 views

Run application with other user than root

Within a small project I opened a wireless connection using the NRF24L01 transceiver and a Raspberry Pi 3 Model B+ with Raspbian 10. To communicate over the transceiver I make use of the RF24 library ...
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1answer
165 views

Pi 3 B+, 7" official touch screen and a Sense Hat query

New here, but wanted to ask about the above. My Pi 3 B+ is connected to an official &" Touchscreen display, which uses a double adaptor to provide power to the Pi and scren. This work fine. ...
2
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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:...
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1answer
32 views

How to add the hfp/hsp profile based speaker for input (speech recognition)and output simultaneously?

I m trying to make kinda type of assistant out of my raspberry pi 3 b+ model and so bought this Speaker . So that I can use it to give audio input as well as get the output at the same time . But I'm ...
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4answers
14k views

Raspbian 8 on Raspberry Pi 3 B+

How can I can use my old Raspbian 8 (Jessie) SD card installation on the Pi 3 B+? I changed files in /boot. (start.elf, start_cd.elf, start_db.elf, start_x.elf, bcm2708-rpi-0-w.dtb, bcm2708-rpi-b.dtb,...
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1answer
32 views

Permanent IP Routing on rPi

I need to be able to ping my rPi through eth0, but it is connected to wifi via wlan0. Turns out, it receives the ping on eth0, and replies through wlan0. I have a rPi b+ 3, latest updates. Running ...
0
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1answer
39 views

GPIO to control a 12V remote control [closed]

I am trying to automate the pressing of a remote control button by the PI. With the buzzer it works well. If I replace the buzzer with the remote control it sort of works. The remote control has an ...
0
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1answer
72 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 ...
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0answers
18 views

Playing videos based on GPIO input Python

I am making a Raspberry Pi(with model 3B) video player that pays a video when an button(from GPIO) is RELEASED. So what I would like to do is when a button is released the video would play. And when ...
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0answers
16 views

importing cv2 error

Hey i have working on 2Rpi One is working fine but the other one is giving me this error. ImportError: /home/pi/.local/lib/python3.7/site-packages/cv2/cv2.cpython-37m-arm-linux-gnueabihf.so: undefined ...
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1answer
23 views

Force Pi 3B+ Raspian (not NOOBS) to boot in composite mode automatically (using config.txt?)

Please do not echo the noise of similar questions and answers. None seem to meet my need. What is the minimum set of config.txt commands that I need to ensure that my Pi 3B+ outputs to composite when ...
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2answers
3k views

Install EPSON TM-T88V printer with CUPS in Raspberry pi 3

I am trying to install the EPSON TM-T88V printer with CUPS in Raspberry pi 3, but I can not make prints, the status of the printer says "inactive". I tried the PPD file "tm-ba-thermal-rastertotmt.ppd" ...
0
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1answer
28 views

Controlling LED using PWM

When I run this code I’m expecting to get a led that brightens but I get a led that dims. import RPi.GPIO as GPIO import time GPIO.setmode(GPIO.BOARD) GPIO.setup(11,GPIO.OUT) dc=0 LED=GPIO.PWM(11,...
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0answers
16 views

Cant connect to my pi

I am trying to setup a Pi-hole server, but once I got everything installed and tried to go to the website, it didn't connect and got ERR_CONNECTION_TIMED_OUT as the error. I thought it was a problem ...
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2answers
1k 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. ...
6
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4answers
1k views

Shorted 3.3v + 5v together. Is it possible to repair?

I was reading through some instructions on how to add a power off/on button to the Pi and accidentally misread instructions and shorted the two end pins on a 3+B model, which appear to be 3.3v and 5v. ...
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1answer
23 views

How to set up bluetooth broadcasting on a pi 3 b v1.2

um new to working with bluetooth on linux or on a raspberry pi but i have managed to set up the controllers. What i want to accomplish now is using python to connect or broadcast my raspberry pi as a ...
0
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1answer
38 views

How to publish results on the Web from local MQTT non-Internet network?

I'm making a project where I have a local no-Internet MQTT network (scheme below). Devices (except for RPi 3B+) needs to work outside so I can't provide them Internet access. The purpose of RPi 3B+ ...

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