Questions tagged [pi-3b+]

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

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10 views

Run a code without being on the physical machine

I have some devices (i.e. leds) that I need to control on a Raspberry Pi, but I was thinking if there is a way in which I can put the code in a server, and then when the raspberry Pi receives a ...
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2answers
195 views

AM2302 no signal using Raspberry Pi 3

I am trying to setup a AM2302 (DHT22) to use with Raspberry Pi, and unable to get a signal. What I need help is to be able to conclude whether the problem is due to (1) sensor fault (2) wiring fault (...
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1answer
23 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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2answers
44 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 ...
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13 views

RaspberryPI use with 3G/4G dongle

I've been looking into a project which would require me to enable my PI to have a remote internet connection. I'm wondering if the PI is able to use a 3G/4G dongle for this? If it can, does anyone ...
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1answer
29 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 ...
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2answers
65 views

Configure Rpi as router - error when starting network and DHCP interfaces

I looked at several solutions for this question, but none of them worked. Additionally, I tried some of the tutorials provided (with the necessary changes), but none of them worked My aim is to use a ...
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1answer
38 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
30 views

How to use Ethernet and Wifi on Pi3b+ and Raspbian buster

Yes, I am aware that similar questions have been asked before on this StackExchange but almost all of those are old and don't seem to be working for me. After googling around I found that things have ...
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73 views

Error installing lirc on raspberry pi 3

I would like to install lirc on my raspberry pi 3B+. Unfortunately there is an error message when installing with apt-get. I just reinstalled raspbian using Noobs to avoid any problems due to changed ...
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1answer
57 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 ...
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1answer
1k 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" ...
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20 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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1answer
186 views

Accessing RJ45 pins individually from Raspberry

I bought a small optical monitor sensor. It basically detects optical pulses from an electrical meter and then triggers an ISR on a datalogger, which is a concrete product for this purpose. Because of ...
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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 ...
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0answers
16 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
17 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
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 ...
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0answers
30 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 ...
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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
37 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 ...
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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 ...
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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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1answer
56 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 ...
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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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1answer
776 views

3G USB dongle together with LAN cable/port on a RaspberryPi

I have a problem similiar to this Ethernet and wifi together I have connected a device to my LAN port which requires static ip address I have given the LAN port a static IP address by modifying the ...
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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 ...
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0answers
29 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
54 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
13 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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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 ...
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2answers
138 views

Accessing a hotspot raspberry pi 3B+ and accessing network devices

I have a Raspberry Pi 3B+ which is working as a hotspot using a Hologram Nova usb modem where it receives Internet from and routes the internet through WiFi and Ethernet. This Hologram usb modem does ...
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1answer
549 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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2answers
32 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-...
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4answers
5k views

What cooling is the most effective for the RPi 3B+?

I've been doing some research with the new RPi 3B+, but have been struggling to find much information about effective cooling for overclocking. I have seen some solutions such as Heatsinks (small ...
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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,...
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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 ...
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1answer
27 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 ...
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1answer
32 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 ...
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2answers
181 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
151 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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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 ...
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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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1answer
72 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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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.. ...
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1answer
18 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 ...
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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 ...
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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 /...