Questions tagged [pi-3b+]

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

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22 views

RPI 3B+ yellow LED flashes every 1.5 secs With Buster booted Kingston A400 SSD, always?

Booting my pi 3B+ from Buster on a USB SSD 240G Kingston A400, I now get 5 to 10 fast yellow LED flashes, every 1.5 to 2 seconds, during normal operation, even when only the Desktop is running. This ...
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0answers
15 views

I don't know why suddenly mjpg-streamer and webcam stop working

I have made a program that uses three webcams and three ultrasonic sensors using raspberry pi 3 and python 3. When each ultrasonic sensors detect stuff in front of them, webcam take a picture of it. ...
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0answers
16 views

VLC cannot read mjpeg video produced over USB webcam

I'm trying to use vlc to transcode a mjpeg stream from a USB camera connected to a raspberry pi 3B+, however VLC seems unable to read the mjpeg video stream from the camera, I already checked the v4l2-...
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1answer
24 views

Is it possible to make access raspberry pi 3b+ access point from wifi without ethernet and other external devices?

Is it possible to create access point from Raspberry Pi 3B+, without ethernet? I'd like to create access point like for example android hotspot, were you can start hotspot but you still can use ...
1
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1answer
35 views

Simulate raspberry pi GPIO

Is there a software to simulate Raspberry Pi hardware design such as proteus? I would like : To use a raspberry pi as a virtual component, Do all the wiring, simulate, Simulate, test code, Check for ...
0
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0answers
29 views

USB mic input + 3.5mm jack output

I'm trying to set up my Rpi using a USB mic and output through the 3.5mm jack. If I select the USB mic in alsamixer, I don't have any sound at all. If I use the 3.5mm I get sound but cannot record ...
0
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1answer
21 views

How rpi3 as slave use i2c with wiringPi

I tried to let my rpi3 with wiringPi as slave to receive data from master and data +1 send to master . mater send 1 to slave (rpi3) My rpi3 SDA is GPIO 18 ,SLC is GPIO 19 the code on my rpi3 : #...
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0answers
19 views

Howto tell the difference between a RP3B and RP4B from a script? [duplicate]

I want to create scripts that configure RP3 and RP4 software installations using Raspbian Lite. The scripts need to know the difference between an RP3B+ and and RP4B. How can I do that? Dazz
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0answers
10 views

I2C client driver instantiation using Device Tree - probe did not get called

I am writing a sample and simple i2c driver in which I am trying to instantiate the i2c client device using device tree overlay. I have got some DTE overlay sample which i have complied to .dtbo and ...
1
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1answer
53 views

i2cdetect shows two device address

I have interfaces Atmel 24C04 EEPROM to raspberry PI 3b+ and used i2cdetect to verify if the interfacing is done properly. I am new to this area and trying to learn by doing some hands on. After ...
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0answers
19 views

Problem in uninstalling FluxePi login page

I'm facing a problem while connect to my server. The web server(IP address) automatically take me to the FluxePi login page, I want to remove this login page, so that i can work on apache2 web server.
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0answers
12 views

bluetoothctl hangs with “connect to bluetoothd”

I have a Raspberry Pi 3 and I have been playing with the bluetooth functionality. It worked for a while: I successfully paired a Windows machine with my Pi, but now it does not work anymore. I used ...
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0answers
17 views

Changing picade's power off functionality

I added a picadeX on top of my Rpi (3B), and it comes with a soft power off functionality. It works like a toggle switch : click once to power on click again to power off As I wanted to integrate ...
1
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0answers
27 views

Where does the Raspberry PI 3 b+ IO peripherals mapped in the ARM virtual address space?

BCM2835 data sheet The earlier version of Raspberry PI (BCM 2835) data sheet shows that the IO Peripherals are mapped from starting address - 0x20000000 - In ARM physical address space 0xF2000000 - ...
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1answer
21 views

Pi stopped connecting to wifi in fedberry?

I'm using a rpi3 b+ and fedberry 27. I had connected to wifi previously, now it suddenly stopped working. In edit connections I shows that I have my wifi network as a saved connection and my password ...
1
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1answer
54 views

Raspberry Pi ethernet network bridge with seperate wireless connectivity

As explained here, I built an Ethernet bridge using a Raspberry Pi 3b+. As an extension, I am now trying to connect it to the internet via the Wifi interface. For that I configured the wireless ...
0
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0answers
28 views

Can't log in via any means

So I'm running Raspbian (I installed with NOOBS initially if that makes a difference) on a Raspberry pi model 3B+ and I can't log in. before anyone says it, I know this question has been posted before,...
0
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2answers
28 views

RUN RC522 READ Python Script without SUDO [duplicate]

Im working with MFRC522-Python library, I READ the RFid Uid then I open a webbrowser with a specific URL composed by the uid of each card. The thing is in Raspbian Buster (RPI 3b+) cannot run Chrome-...
0
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1answer
26 views

autonomous lawnmower with gps, radar and remote control

I am trying to build an autonomous lawnmower using raspberry pi 3B+. I want to include auto-steering or remote control and also I want to include the radar as well to avoid any obstacles and also want ...
0
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2answers
30 views

Second wifi (dongle) only as local network

I'm running Raspberry Pi (3B+) 9 (stretch) Wlan0 connected to WAN with network info stored in wpa_supplicant.conf. I recently purchased an Wifi dongle in order to create a wireless access point from ...
0
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1answer
31 views

Cannot ping my access point

I created an access point on my Raspberry PI (Raspbian) following Setting up a Raspberry Pi as an access point - the easy way the systemd-networkd way. Now I have to connect to my AP via another RPI ...
1
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0answers
20 views

RPi Camera starts going white

I bought a RPi Camera V2 from amazon yesterday and when I tested it today it started going white and then flashing colors like a disco party (rave starts 8 seconds in): https://imgur.com/a/QK5VL22 ...
3
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1answer
49 views

Scanner only works if used as root

I am having difficulties getting my scanner to operate. I am using Raspbian Buster on a raspberry pi 3b+. My scanner is a USB Canon LIDE 110, which is connected to the pi through a powered USB hub. ...
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0answers
22 views

2 RPi's one VPN server one VPN client how to

I have 2 raspberry pi's that I'm playing around with. One raspberry pi I have set it as a vpn using pivpn I have enabled port forwarding on my local router and I can access the vpn at home using my ...
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0answers
22 views

Remote access lags on 3B+ when firewall enabled

I'm having some weird problems with SSH and VNC on a 3B+. I've got basic firewall rules on the Pi to allow that traffic through, but I get major lag with them. I'm talking 2 minute delays. If I ...
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0answers
16 views

Raspberry pi running hassio wont connect to internet/network all of a sudden?

I have a raspberry pi 3b+ which i use at home to run all my home automations stuff - one day when i came back from work nothing worked? all my dashboards, my lights, all automations nothing worked.. ...
0
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1answer
69 views

How do I connect my Raspberry Pi 3 B+ to a hidden network? Nothing I've read works

I just installed Raspbian on my SD card, but I cannot connect to my network initially because it is hidden. I've tried following the guide https://raspi.tv/2017/how-to-auto-connect-your-raspberry-pi-...
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1answer
16 views

iptables blocking access to a service (Cloud9)

I want to create a Cloud9 server using a raspberry pi. I download the repository and it ran just fine in the port 8181 as it shows below. I could even access the panel from the Raspberry using ...
0
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1answer
37 views

How to use at the same time 2 hardware pwm in wiringpi

I need help to configure 2 hardware PWM channels. I am developing device, and sometimes I will need active 2 PWM channels with different frequencies (frequencies is low: 410 and 580 Hz).I'm writing ...
-2
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0answers
32 views

how to import 'Adafruit_GPIO.SPI'?

import time import Adafruit_GPIO.SPI as SPI import Adafruit_MCP3008 CLK=18 MISO=23 MOSI=24 CS=25 mcp=Adafruit_MCP3008.MCP3008(clk=CLK,cs=CS,miso=MISO,mosi=MOSI) while True: v=(mcp.read_adc(0)/1023....
0
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1answer
21 views

How can I sent live video to a monitor without internet or Bluetooth on a Pi 3? [closed]

I have a Raspberry Pi 3, a camera and a 3.5 RPi display. All I want to to is send video from the camera to that monitor without the use of the internet or Bluetooth.
2
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1answer
48 views

DNSMasq unknown interface wifi0 - failed to start

Introduction I am trying to use my Ubuntu Core-RaspberryPi as a Wifi Access point. Therefore, I am using hostapd and dnsmasq. I followed this tutorial in order to setup everything. I start them ...
0
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0answers
14 views

PiCAN2 network is down

I am using RPi 3 model B+. I am trying to set up can communication using Pi CAN2 (From SKpang) with baud rate 500000. But I am getting "write: Network is down" whenever I am sending "./cansend can0 ...
1
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2answers
29 views

do RPi3 3.3/5V pins output constant voltage even if the RPi power supply is changing voltage?

I want to power my RPi with a lithium ion battery. The RPi will be powering some devices which require constant voltage to power them. If I use a battery as supply for the RPi (which changes as it ...
1
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1answer
49 views

Why can't I hear the sounds when making a call?

I was able to make calls using my RPI 3 model B+, Huawei E153 GSM Modem, and minicom. I can see that the cellphone I'm calling was able to answer my call (from my Pi). I plugged in my headphones to ...
0
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1answer
36 views

SSH connection hangs in Mac OS Terminal - No prompt for password

I've been SSH'ing into my Raspi 3 B+ for some time now from my Mac OS with no issues. I recently set a static IP address for my Pi on a LAN network connected via ethernet cable. I edited sudo nano /...
0
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1answer
22 views

Raspberry 3B+ Can it be connected the same time for WiFi and for Ad-Hoc wireless network

Sorry guys, I'm not a Linux guru at all. So the problem: I have a general wifi in my office and there is Internet shared via this network I have a raspberry 3b+ device I could connect rpi to this ...
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0answers
61 views

Powerbank for Raspberry pi 3 B + car robot

I am just beginner, so perhaps this question is not correct. I am going to build a robot car, and I am going to power it by using powerbank. My question is : is it enough for robot at all? I mean, is ...
0
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2answers
43 views

Test raspberry power supply

I have a raspberry pi 3 B+ and an external hdd like this one Connecting it directly to the pi makes the pi shutdown and restart I’ve tried to use an external usb hub with power but it still keeps ...
2
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1answer
115 views

RPi 3b+ corrupt /boot (Please give me the contents of your /boot)

Last Friday (July 19th) I did sudo apt-get update and sudo apt-get upgrade, then I shut it down. Today, I tried to power it up, but nothing appears on my screen. My HDMI cable is working properly, so ...
0
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1answer
56 views

Unable to install Mongo-DB on Raspberry Pi with Ubuntu Core 18.04

I am trying to install mongoDB on my Raspberry Pi 3b+, which has an ARM 4-Core 64 bit processor. I was trying to install MongoDB on my Pi just as mentioned in their documentation but unfortunately I ...
3
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2answers
64 views

Should I tear apart USB PSU or get a dedicated switching PSU?

I'm going to be using an Pi-3B+ to switch an AC and a DC device using one of the popular relay modules. This whole project is going to go in a custom screw-together project box that will have AC input ...
1
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2answers
50 views

Relay modules: Can I switch AC in one and DC in another?

I would like to control both 120VAC and 24VDC from my RPi 3B+. To make this easy, I'm looking at one of the various 3ch or 4ch relay modules for an RPi 3B+, like this or this. I'm familiar with using ...
1
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1answer
19 views

How can I control a RaspiCam with the display CSI?

I was working with a RaspiCam on my 3B+ when something in the hardware broke. The Pi does not recognize my cam anymore. But when I connected it to the display CSI the LED on the cam started glowing. ...
1
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1answer
34 views

Is it possible to use the pi as a wireless usb passthrough to my windows computer?

I have just recently had a raspberry pi 3 model B+ and thought of a cool project. Being a total beginner at this area, i do not know if it is even possible. My desktop pc is in a very pecular ...
0
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0answers
26 views

reading EMG on Rpi3 using Teensy 3.2 on usb serial

We are using MyoWare EMG sensor and reading the RAW EMG pin as well as filtered SIG pin on the board. What it basically does is sends an analog value as a fraction of the input Voltage, which in this ...
0
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1answer
39 views

MGR996R rotation angle

Basically I want to control the angle of the rotation of the servo motor but I don't seem to know how... From the tech sheet I know this motor shouldn't be a continuous one, any hint would be ...
0
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1answer
51 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 ...
2
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2answers
119 views

What are the differences in architecture of Model 2 and Model 3B+? (SD card not working in model 3B+)

I have two raspberries (model 2 and model 3B+) and two sd cards. I wanted to swap the cards. The card from model 2 is not recognised in model 3B+. There is no green LED which indicates that the ...
1
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4answers
52 views

Is it safe to reuse a crashed SD card?

I have the following set-up: RPi 3 8GB MLC microSD partition 1: root and the rest (read-only) partition 2: /var filesystem (rw) continuous writes to /var/logs system will experience unexpected sudden ...