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Questions tagged [pi-3b+]

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

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0answers
140 views

How to cross-compile the kernel 4.14.y on the Ubuntu 18.04

When I compile the kernel,use the following command: make ARCH=arm CROSS_COMPILE=~/raspi-barry/tools/arm-bcm2708/arm-linux-gnueabi- -k It shows a lot of errors, ./scripts/gcc-version.sh: line 26: /...
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0answers
38 views

Recent raspivid segmented filenaming does nog work properly

I updated to pi3B+ and got the most recent raspivid. In my old software I use raspivid -sg 6000 -wr 40 -sn 4 -o REC_%04d.h264" to produce a file named REC_0004.h264. The new version produces a ...
0
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1answer
105 views

Raspberry Pi 3 4G Dongle Internet to eth0

I have followed the following tutorial to setup Hotspot on RPi with a 4G Dongle. For 4G Modem i use Sakis 3g Scripts. It works fine. But when I try to connect my PC to the ethernet port of the RPi ...
0
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1answer
113 views

3 b+ wifi support 80 MHz ac bandwidth

Does the raspi 3 b+ builtin wifi support 80 MHz bandwidth under any conditions?
1
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1answer
754 views

RPI3 Raspbian Stretch regular connection on wlan0 AP on wlan1

I'm trying to make a very simple setup with my RPi. On the on-board standard wlan0 I want to connect to my home network normally, using a wpa_supplicant file this works very well. Now I'm having ...
0
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1answer
47 views

After installing raspbian I can't add ssh file

After I installed raspbian on the sdcard, the sd card disapear from the file explorer and I can't add a ssh file. If I plug out and in the sd card, windows ask me to reformat. How could I add the ...
0
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2answers
72 views

Raspberry Pi Detects I2C Device Sometimes

I have my MPU-92/65 connected to my Raspberry Pi and it's sometimes detected but not always. $ i2cdetect -y 1 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- -...
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0answers
34 views

Connect to failover WiFi if other router is unavailable

I have two WiFi networks configured in /etc/wpa_supplicant/wpa_supplicant.conf as below, and I'm able to manually switch from one to the other via GUI with no problems (via RealVNC usually). However, ...
3
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0answers
185 views

Accelerated Numpy on Pi 3 B+

I'm looking to do some work with NumPy on my Pi 3 B+, and I'm not sure what the deal is with optimization, blas, etc. I installed libatlas using: sudo apt-get install libatlas-base-dev Following ...
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0answers
40 views

Is full FOV in rpi-cam V2 possible at 640x480 @60fps?

I have a video recording system developed using RPi 2 Model B and Cam v1 and plan upgrading to RPi 3 Model B and Cam v2. My application is such that I need higher frame-rates (60fps +) at Full FoV, ...
0
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1answer
37 views

Controlling GPIO Pins of Two RPi's from the Same Web Page

I'm using a raspberry pi to control some relays hooked up to some lights. I am a controlling the lights via PHP web controls. I've reached a barrier in which there aren't enough GPIO pins to control ...
4
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1answer
191 views

Service failing to wait for internet connection

I'm strying to make my systemd service start after internet connection has been established. I read several questions on this forum, but no success so far. The error is analog to Invalid host: ...
1
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1answer
232 views

Trying to run a C# Discord Bot on Raspberry Pi 3 Model B+ with Windows 10 IoT

I have developed, in Visual Studio 2015, a C# Console Application which uses the Discord.Net API. It works great running on my PC, which has Windows 10, however I am looking to run the program 24/7 on ...
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0answers
30 views

Portable Raspberry for Recalbox

Today is the day where the beta of Recalbox for 3b+ is out. For the moment, it's working. I want to know how to make my RBerry portable, so that I can play with it everywhere. I'm new to all that ...
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0answers
24 views

How intensive is hostapd to run?

Some background to the question: A few weeks ago I set up a media server on my Pi 2 using minidlna, it was connected to my home network and could stream 720p 60fps video very well. I did, however, ...
0
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2answers
79 views

Power rpi with 2 ports from usb hub

Ok so I have not been able to find this specific question on the interwebs. I am looking for a USB hub that will power the pi and a few other things. I'm not concerned about the over all power rating ...
2
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3answers
282 views

Raspberry Pi Relay Protection [closed]

I took a picture of my mock setup to give a better idea of what I'm working with. Basically, I'm will be using relays connected to my Raspberry Pi that I intend to use to control a series of lights (...
0
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1answer
62 views

Protecting Raspberry Pi from Relays

I took a picture of my mock setup to give a better idea of what I'm working with. Basically, I'm will be using relays connected to my Raspberry Pi that I intend to use to control a series of lights (...
0
votes
1answer
570 views

Pi3 B+ FFMPEG encode x265 very slow

I just bought a RPI3 B+ with the hopes of using it as a media encoding box. I built ffmpeg, and use the following to transcode media from h264 to h265 ffmpeg -i "$i" -c:v libx265 -crf 28 -c:a aac -b:...
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0answers
52 views

Maven Build fails on Raspberry board with VM crash

When running mvn clean install for my code on raspberry , I get below error Error occurred in starting fork, check output in log [ERROR] Process Exit Code: 1 [ERROR] org.apache.maven.surefire.booter....
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1answer
389 views

Differences in GPIO between Raspberry Pi 3 B and 3 B+

Is there any difference in the GPIO layout between Raspberry Pi 3 B and 3 B+? If yes, please provide the differences.
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0answers
53 views

Kernel panic-not syncing: VFS: unable to mount root fs on unknown- block(179,2)

sudo cp /etc/systemd/system/getty.target.wants/getty@tty{1,3}.service sudo nano /etc/systemd/system/getty.target.wants/getty@tty3.service I used these commands to change the very last line at the ...
2
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2answers
865 views

How fast can GPIO pins toggle?

I'm currently using Python's RPi.GPIO module to toggle some pins, and I want to know how quickly it can do this. I need the pins to be toggled on the schedule of a ~50 mhz FPGA clock, which I'm ...
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0answers
27 views

Rpi3 WIFI AP go down after some time of innactivity?

I have setup my Rpi 3 as wifi access point and it was working for a long time. But some day, wifi stop working unexpectedly and i was no idea that what was the problem. It means wifi access point is ...
0
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2answers
132 views

I have a Raspberry Pi 3B+, I'm running it from a 3.3A 24V LED Driver (Through a Buck Converter). I have a question about the PWR (Red) LED

I'm running a Raspberry Pi 3B+ on a 24V 3.3Amp LED Driver. I'm converting the 24V to 5.1V for the Pi using an MP1584EN DC-DC Buck Converter with a rated output current of 3Amp. I power the Pi though ...
0
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0answers
226 views

Unable to login into Kupiki captive portal using the given username and password(Raspberry Pi 3 B+)

I tried to create a captive portal for my Raspberry Pi's Wifi hotspot using Kupiki-Hotspot-Script which is given in this link Kupiki-Hotspot-Script However I am unable to login using the given ...
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1answer
70 views

RPi 3B+power issue on GPIO port 1 +5.25 V

I would like to ask for some help with RPi 3B+. It was working for three weeks and for some reason not starting anymore. I tried to wait for three day long as suggested for the polyfuse to rebuild, ...
0
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1answer
29 views

How to copy text from nano to OfficeLibre ? [closed]

I can mark the nano file text - Ctrl +^ and copy it using Meta+^. The text should be in some buffer , but I cannot use OfficeLibre "GUI" to paste this selection into Writer. Apparently this "nano" ...
1
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1answer
791 views

AVAHI Daemon doesn't work on RPI

I have installed lighttpd on my RPI 3 : sudo apt-get install lighttpd I have managed to access the web server from /home/pi/www And it works, I can find my Hello World when I entered 192.168.2.31 in ...
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1answer
43 views

Distinguishing data-addresses of I2C chips [case ADS1015]

I'm trying to learn reading out I2C chips, but somehow I can't figure out how to find the right data addresses. I bought a water level sensor and a ADS1015 ADC[foto below]. They are connected via ...
1
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2answers
31 views

Execution of created .txt files on the desktop

How can I execute text files by clicking on them on the desktop? By this I mean me following the following process: Creating a .txt file on a Raspberry Pi desktop Typing out executable code inside ...
0
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1answer
48 views

wpa_supplicant.conf entries?

Every resource I have seen / used always say how to COPY or paste entries into wpa_supplicant.conf. The question is Is there a document actually explaining , in "5 W's" style, purpose these entries?...
0
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1answer
63 views

Can I modify an RPi2 image to boot on an RPi3 B+?

I have a Raspberry Pi 3 B+, and none of the operating systems that usually work on the RPi 3 will boot. I've done a small bit of research, and I think this has something to do with an outdated ...
1
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2answers
129 views

Can't blink a LED using SPI interface on Raspberry Pi v3

As a part of my PoC project, I'm using single 5050 LED made by Adafruit. I wired it like this (LED - RPi): DI (Data Input) - SPI0 MOSI CI (Clock Input) - SPI0 SCLK GND (Ground) - GND VCC (5V) - 5V ...
2
votes
1answer
651 views

Samsung 128GB EVO Plus File System problems

I just received my first RPi 3B+ board today and have tried to use it with a Samsung EVO Plus 128GB u3 card I downloaded Raspbian Stretch Lite (June 2018) and used Etcher to flash the cards. After ...
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0answers
147 views

Bleno, cannot find module … bind.node error

I am trying to run a bleno test script, but I encountered this error. internal/modules/cjs/loader.js:583 throw err; ^ Error: Cannot find module '../build/Release/binding.node' at ...
6
votes
1answer
225 views

Is it possible to simultaneously use the dual band(2.4 Ghz and 5 Ghz) of Raspberry pi 3 B+ to create an AP?

Is it possible to simultaneously create a single AP on raspberry pi 3 b+ which uses both 2.4 Ghz and 5 Ghz bands so that users with low end devices can connect to the 2.4 Ghz band and users with ...
1
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0answers
37 views

Relay for controlling backlight of touchscreen not reacting after a while

I connected my rpi3 to a 10" touchscreen. I connected the backlight of the touchscreen to a relay which I'm controlling via the GPIO pins. This is working fine for the first couple of minutes. But ...
2
votes
1answer
2k views

USB Boot From SSD not booting — Rapsberry Pi 3b+

So I'm having issues getting the USB boot mode working on my new raspberry pi 3b+ and a couple of different SSD's I'll first go through all the things that I've done, and what I'm seeing. Installed ...
0
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1answer
188 views

Raspberry Pi 3+ : rc.local loop issue [closed]

I'm using a new Raspberry Pi model B+ (with Raspbian) in order to host my Django website but I have an issue when I try to go to repositories. My website is well-hosted, I can access through http://...
2
votes
1answer
795 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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2answers
872 views

rplay error while loading shared libWFC.so [closed]

I wanted to install rplay on my Raspberry Pi 3b+. I followed an instruction from the web and everything worked fine until I wanted to start the actual program. I am not able to access the ...
0
votes
1answer
190 views

Get measured value of gpio vibration sensor (SW420)

I've managed to connect 2 SW420 vibration sensors to my rpi3 and can identify a vibration event on callback. However, I'd like to get the measured value (voltage change?) from the sensors, to see ...
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0answers
432 views

Sorry, could not load the WebRTC extension for UV4L

I have a RPi 3B with a Raspberry-pi Camera Module OV5647 sensor HD video Webcam 5MP 1080p mounted and working. I am trying to get UV4L streaming working and have encountered a problem. UV4L driver ...
1
vote
1answer
879 views

Raspberry Pi 3B+ freezes randomly

General setup My RPi is connected to a mouse, keyboard, and monitor. My swap size is set to 1000 MB and I'm not using wifi. Problem The RPi freezes randomly, meaning the GUI is frozen, no SSH ...
0
votes
1answer
65 views

Flask server blog question

I am about to embark on my first experience with Rasb Pi and I want to utilize the code from this blog on how to stream motion JPEG thru a Python Flask server, Flask Video Streaming Revisited. The ...
1
vote
1answer
904 views

Unable to configure Raspberry pi 3 B+ as a 5Ghz AP using 802.11ac in India

I have been trying to configure my Raspberry pi 3 B+ as a 5Ghz access point but I'm unable to do so. Here is my hostapd country_code=IN ieee80211d=1 ieee80211h=1 interface=wlan0 driver=nl80211 ...
1
vote
2answers
1k views

Raspberry Pi 3B+ RTC and Power ON button

I have a RTC DS3231 connected to my Raspberry Pi 3 B+. I connected it using this tutorial https://www.raspberrypi-spy.co.uk/2015/05/adding-a-ds3231-real-time-clock-to-the-raspberry-pi/ and everything ...
2
votes
1answer
557 views

Virtual Machine for Raspberry Pi 3

I have found Exagear Desktop. It would work perfectly except for the fact that the RPI3 version is $30. Are there any other virtual machine software that would work on the Raspberry Pi that are free?
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0answers
67 views

Control multiple RPis from a master RPi [closed]

I'm a newbie ;) My Plan: I want to have one "Master" RPi and have this one as an "center of home automation". The other Pis are going to be in differnet rooms and will be connected to the network via ...