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Questions tagged [pi-3b+]

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

1
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2answers
34 views

How to check if SPI is enabled and functional on Raspi 3b+?

I have run raspi-config and enabled SPI and also verified that /boot/config.txt contains the line: dtparam=spi=on However, when I run lsmod | grep spi I get the following: spidev ...
0
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0answers
17 views

raspberry pi hangs after not using for 1-2 days

raspberry pi hangs after not using for 1-2 days, then we have to forcibly reboot or restart the device. I have connected hardware of magnetic door lock, relay, RFID and Dual smps to the raspberry pi. ...
0
votes
1answer
22 views

Control function for a DC servomotor angle

I am using a Raspberry Pi 3B+ with servomotor shields to control multiple servomotors at once with Python. I know that the travel angle of a servomotor is controlled using PWM. So there exists a ...
1
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0answers
16 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 ...
3
votes
1answer
28 views

Keyboard and mouse don't work in GUI

I've tried to include as much information as possible, but if it isn't relevant I will remove it. I purchased a Raspberry Pi 4 months ago, and I've been using it to run some CRON jobs. I have a ...
-1
votes
0answers
26 views

How to overclock Pi 3B+ on Arch Linux?

I used to overclock my Pi 3B+ on Raspbian by modifying the /boot/config.txt file, but how can I do this on Arch Linux ARM? I can run Arch Linux successfully.
1
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0answers
35 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 ...
0
votes
0answers
48 views

Raspberry pi port forwarding issue

I have a raspberrypi which is raspbian installed.I am connecting rpi with ssh via my home wifi.Then Installed 3proxy,usb modeswitch and wvdial.And my 4g wifi dongle is connected and up.This my config: ...
-5
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0answers
25 views

Scada for Raspberry Pi - prices? [closed]

Do you have any experiences with SCADA solutions for Raspberry Pi? I want to find optimal solution, where is balance between number of tags, stability, functionality and price. Let me know, if you ...
2
votes
1answer
32 views

Normal Work of RPi 3B+

I am newbie and i want to understand watching only on indicators, is Rpi 3 B+ work quite well? I mean, are green and red lights should glowing both permanently together or red light can glows ...
1
vote
2answers
33 views

Raspberry Pi 3 B+ to Android Phone USB Tethering Inactive eth1 Interface

This is a follow up to Static IP Address for USB Screencast in Raspbian Stretch. Concisely, I want to use USB Tethering to connect VNC on my smartphone to the RPi for use as a remote desktop-type ...
0
votes
1answer
31 views

RPI 3 B+ configured as wireless extender (AP + client) troubleshooting

Im trying to configure my RPi 3 B+ as a wireless extender using the internal wifi chip aacting as the client and AP. Ive been following this guide as it seems most suitable for os/model/application ...
1
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0answers
43 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 ...
0
votes
0answers
78 views

proxy is working locally,But not with remote host

I have install 3proxy in rapberrypi.Raspberrypi is connected with 4g dongle.My proxy is working fine in locally,but I can not connect it to remote host(Vps).It shows "Error: I could not see your ...
1
vote
0answers
36 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
vote
0answers
11 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,...
0
votes
0answers
18 views

HDMI port is not working

I have been using an RPI3B+ for around 2 months . I used it remotely most of the time. Recently, when I was trying connect it with a monitor via HDMI to VGA converter , it didn't work at all. I ...
0
votes
1answer
26 views

Pi HAT Waveform Generator for Raspberry Pi 3B+

I am looking for a Pi HAT capable of generating 300 kHz sine waves at about 8 samples per waveform with my Raspberry Pi 3B+. Sampling rate required is around 2.5 MSps. Output voltage ideally needs to ...
1
vote
1answer
34 views

Unable to exceed 100Mbps over 3B+ Ethernet link

I have an rpi 3B+ running Raspbian connected to a gigabit switch, and a Debian machine on the same switch. Both systems negotiated a gigabit link to the switch: $ sudo mii-tool eth0 eth0: negotiated ...
0
votes
2answers
25 views

Execute single graphical programs remotely using X Window

I have a Raspberry Pi with Raspbian Stretch Lite. I want do execute only some single graphical programs remotely and do not want to install a complete graphical user interface with a Desktop program ...
0
votes
0answers
18 views

Raspberry Shut down After trying to connect fan

I just bought a new Raspberry Pi 3B+ UK and was working with it for about 2 hours, and then when I was not at home, my son noticed that the CPU is hot and tried to cool it down with a normal 5V PC fan ...
0
votes
2answers
41 views

Kali linux won't boot on Raspberry Pi 3B+

I downloaded tge kali linux RaspberryPi 3 64 bit image from this site: https://www.offensive-security.com/kali-linux-arm-images/. The date of the image is 2019.1. I burned the image on the sd card ...
3
votes
2answers
41 views

Connect Camera (TTL serial) to Raspberry PI

I recently bought a barcode scanner for a hobby project. I want to connect it to my Raspberry PI 3 B+. The interface for the camera is RS232 TTL serial. It has a flex cable about half the size of the ...
0
votes
0answers
25 views

I am not able to login in Raspberry pi 3 b+( stretch Os) although my password is correct and I am facing this problem after installing protbuf

After installing protobuf and rebooting the Pi, I am not able to login into Pi. The login popup appears, but after entering my password I do not login into the Pi. Also, my password is not showing ...
1
vote
1answer
33 views

Using a bluetooth headset as both audio and mic on a raspberry pi

I am looking to purchase a Bluetooth headset for a project of mine and I would love it if I could use it with my raspberry pi The headset I am looking to get is this one: https://www.gearbest.com/...
1
vote
1answer
35 views

wpa_supplicant.conf file become empty

I did headless setup of the Pi 3B+ and what I've done was: Flashed the last OS on the SD card (Raspbian Stretch full 2018-11-13) Created two files in the root directory of the SD card: ...
1
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0answers
31 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
vote
2answers
53 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. ...
1
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0answers
20 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
vote
2answers
63 views

3B+ “Internal error: Oops: 17 [#1] SMP ARM” after system wide grep pattern matching

friendly forum! I had just setup my 3B+ with ssh certificates and things(booting from a Sandisk Cruze 16GB, no other device connected, wifi internet) and was tinkering with the motd when I ran a ...
1
vote
1answer
33 views

RPI Fan Startup and Temp Control

Info: I am running a rpi 3b+, with Recommended Raspbian installed, and also with a Noctura NF-A4x10 5V, mounted on the lid, with vent holes, of the official rpi case. I will eventually turn this ...
1
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2answers
118 views

I can't get WiFi access point (AP) working on my RPi

I want to control my Raspberry Pi 3B+ using VNC via the on-board WiFi. To this end, I am trying to set up a WiFi access point on wlan0. I followed the instructions at https://www.raspberrypi.org/...
3
votes
3answers
55 views

Access raspberry pi files through Samba or web browser without a router

I have just got my first Raspberry Pi, (3 Model B+) and am having so much fun with it. My first project is a simple wildlife camera that takes pictures using a simple python script to detect motion. ...
1
vote
0answers
29 views

BLE Connect fails with page timeout

I've got a custom BLE 4.1 device and I'm trying to connect it to Raspberry PI 3 B+ using hcitool, gatttool, bluetoothctl, ..., without success. The device is an NRF BLE chip with the Nordic UART ...
1
vote
1answer
47 views

Serial comms & USB camera in parallel/threaded?

My project is currently using OpenCV to controll a pair of motors via hardware PWM (am using the pigpio library for GPIO control). The video input is from a USB webcam. I would like to add some ...
2
votes
1answer
46 views

Remote Deployments

I have an application that runs on a RPi 3. This application can update itself by checking for a new version on a web server. If there's a new version, it downloads it from the server, runs a ...
0
votes
1answer
89 views

How to create local hotspot on raspberry pi 3b to share files on android

I want create a local file shareable service using raspberry, below are the requirements: Create wifi/hotspot on raspberry (without any internet) Connect my android phone to created wifi Share files ...
0
votes
1answer
71 views

is undervoltage on a pi3b+ a problem of the board?

Like many others I got the undervoltage warning on a pi3b+. I see most answers blame a poor power supply. I plugged mine to a bench power supply to test this, I set it to 4 amp and kept getting ...
1
vote
1answer
34 views

NameError: name 'patterns' is not defined` when installing Graphite

I am trying to install graphite on my RPi following this tutorial. https://www.digitalocean.com/community/tutorials/how-to-install-and-use-graphite-on-an-ubuntu-14-04-server I am supposed to sync the ...
1
vote
2answers
98 views

How do I properly configure my Pi-3B+ and Pi-Zero to share an internet connection over usb0 and eth0?

I've been trying to configure my Pi-3b+ and Pi-Zero to share a network connection for about a week now without success. Can anyone tell me how to configure the two pi's to enable the following ...
1
vote
1answer
59 views

Boot from USB Connected SSD

It seems that existing guides of how to boot from USB are out of date, and the one here (https://learn.adafruit.com/external-drive-as-raspberry-pi-root/hooking-up-the-drive-and-copying-slash) didn't ...
1
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0answers
22 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 ...
0
votes
1answer
35 views

Mapping Arduino pins to Raspberry Pi pins

I am following instructions on wiring an LED screen to an Arduino. I have a Raspberry Pi 3 Model B, so I am having to "interpret" the instructions. I'm stuck on a step where the instructions say to ...
1
vote
2answers
33 views

How to program active cooling connected to GPIO

I have Raspberry Pi 3b+ with the case, which has a small 5v fan, which is connected to GPIO. Look to picture below: Fan works all the time. But I don't want it. I want it to work only in case, when ...
2
votes
0answers
49 views

Google assistant on RaspberryPi3

I need help as I am stuck doing a project. I followed the tutorial on google developers website " https://developers.google.com/assistant/sdk/guides/library/python/extend/install-hardware" and got the ...
0
votes
1answer
124 views

PIServer client autologin

I've got a Raspberry PI 3B+ configured to diskless boot with the PIServer PXE system. I have created a user 'map7' and would like it to autologin my thin clients into the GUI as that user. I've ...
1
vote
3answers
57 views

How to recover 'deleted' microSD card space? [duplicate]

I've been playing around with my RPi3B lately and for whatever reason wanted to reformat my SD card. I'm unsure how I did it but now when I insert the card it says there is only 31mb of space. The ...
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votes
0answers
39 views

Meaning of output from 'ps -aef | grep python3'

When I enter this command, ps -aef | grep python3 I get the following message pi 828 1 0 12:06 ? 00:00:08 /usr/bin/python3 /home/pi/hs110-data-collect.py pi 5079 863 1 ...
1
vote
1answer
43 views

P5 code optimisation for raspberry Pi

When I try to execute this sketch that is based on a face recognition algorithm it really lags on raspberry, whereas when run on different devices (macbook pro and notebook), it runs smoothly. You can ...
1
vote
1answer
74 views

DS18B20 temperature sensor not found in devices folder

I am trying to setup DS18B20 for Raspberry Pi. I have followed the instructions from Adafruit Lesson 11 updated RBPI kernal to 4.19 setup wiring (see below) with 10k resistor verified signal (yellow ...