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Questions tagged [pi-3b+]

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

40
votes
3answers
185k views

How do I make serial work on the Raspberry Pi3 , Pi3B+, PiZeroW

My Pi3 serial console produces rubbish and fails to respond to the keyboard.
9
votes
4answers
10k 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,...
8
votes
4answers
12k views

Why am I getting a rainbow screen and flashing red PWR LED with a new Raspberry Pi 3B+?

I think there might be a problem with my new Pi. I'm using the same power supply (purchased from PiHut for my previous 3B) in the new 3B+ but I get the rainbow screen and the red power light flashes ...
6
votes
1answer
645 views

Netbooting multiple “workers” RPi from a “master” RPi

My question is, I believe, a little bit complex, and I think it would be better to fully describe what I have and what I want to achieve, with what I am able to do. What I have I have a group of ...
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 ...
5
votes
1answer
2k views

Change PI 3 against PI 3 B+ [duplicate]

Currently I have a PI 3 B running with Raspbian Jessie. It has a 3 TB external Usb-HDD which holds the root partition for the Pi. The SD-Card is only used to start the Grub and afterwards the HDD ...
4
votes
1answer
2k views

Access point as WiFi repeater, optional with bridge

I need a wireless access point that is bridged with the wired ethernet port and that is connected to another wifi internet router with a client connection as uplink. All devices connected to the RasPi ...
4
votes
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: ...
4
votes
1answer
718 views

Undervoltage symbol

So I have this undervoltage symbol on my raspberry 3+, and it's annoying. Now I have a powerbank with 5V and 2.1A(fast charger) and the symbol is there as well as on the old pi-2b+ AC adapter. So ...
4
votes
1answer
2k views

How do I install Tensorflow Lite on Raspbian Stretch?

Thanks for your help. I want to deploy a tensorflow neural network to a Raspberry Pi 3 B+ with the Raspbian Stretch OS, and I'd like to know the best way to install Tensorflow Lite (or Tensorflow ...
4
votes
2answers
3k views

Pi 3 Model B+ doesn't boot - Power Supply or broken?

I just bought a Raspberry Pi 3 Model B+. I also bought a power supply that the reseller sold specifically for the Pi - it delivers up to 3A. However, the Pi doesn't boot. I gives me the rainbow screen ...
3
votes
1answer
99 views

What are the functions of the test pads on the Pi 3B/3B+?

The various models of the Raspberry Pi comprise numerous test pads (testing pins). Many of these pads however are not mentioned or properly labelled in the official reduced schematics the Raspberry Pi ...
3
votes
2answers
70 views

RPI 3B+ state of /sys/class/net/eth0/carrier won't change

My application check /sys/class/net/eth0/carrier for ethernet status; it works great on RPI 3B but broken on RPI 3B+. If I plug out the RJ45 cable from both RPI 3B/3B+ : the RPI 3B will change the ...
3
votes
1answer
1k views

Rainbow Screen after Android Things installation

I am new to Raspberry and Android Things. I have a Raspberry Pi 3 B+ and I am using latest Android Things (followed as per Android Developer Site). But why is it only showing Rainbow Screen after the ...
3
votes
0answers
73 views

Are the camera and display connectors of my 3B+ soldered the wrong way around?

I recently purchased a new 3B+ board and although the board board itself is working fine, I can't get the PiNoir camera to work. The camera works fine on an another 3B board. I tried several tricks on ...
3
votes
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 ...
3
votes
1answer
275 views

Which Linux driver does control the PMIC of the Raspberry Pi 3B+?

The Raspberry Pi 3B+ contains the MaxLinear (previously Exar) MxL7704 power management chip (PMIC) with I2C interface for "on-line" reconfiguration of power sequencing and internal voltages.1 This is ...
2
votes
2answers
50 views

Scaling of digital reading of pressure sensor

I have purchased one of these and I've connected it to a pressure sensor. I now need to convert the digital values to pressure. However, my maths is all forgotten. Can anyone help me out? The ...
2
votes
1answer
262 views

Green LED on RPI 3B+ GPIO

I have seen a few examples of wiring a red LED directly from the RPI GPIO pins, however, I need to wire a GREEN LED and am having trouble calculating the resistor needed. I believe that a green LED ...
2
votes
2answers
135 views

128GB in Rpi3b+?

I’m thinking about getting a Samsung 128GB microsd as they’re cheap in Amazon and I assume not fake/shanzai. But can the Rpi3b+ use this? Also it is speed 10 and U3 rated because there’s no longer ...
2
votes
1answer
8k views

Flashing Android Things to Raspberry Pi 3 B+ [duplicate]

I have just got a Raspberry Pi 3 Model B+. I initially installed Raspbian Pi OS on it temporarily to prove that it works and to prove that my touchscreen that I also got for the pi works OK. I have ...
2
votes
2answers
33 views

How can I capture the 720p fps60 video?

I tried to use below command to capture the video, but output video fps only 25: raspivid -rot 180 -t 10000 -w 1280 -h 720 -fps 60 -b 1200000 -p 0,0,1280,720 -o test.h264 Any one can help me?
2
votes
1answer
158 views

Unable to detect cam module in raspberry pi 3 b+

I have my cam module connected and have also tried sudo apt-get update && sudo apt-get upgrade but the pi is unable to detect the cam module. On executing this command : vcgencmd get_camera ...
2
votes
2answers
864 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 ...
2
votes
3answers
979 views

Why does pi3 b+ not boot in pi-top? [duplicate]

In September 2016 I bought a Pi-top with its Pi3B, which I assembled and it runs with the Pi-top software recommended at the time. I recently bought two Pi3B+. Expecting complete computability, I ...
2
votes
1answer
140 views

Swift ARM build that will run on Raspberry Pi 3 B+

I've been fiddling around in my free time trying to get Swift 4.something to run on a Raspberry Pi 3 B+ with Raspbian Stretch. I found a repo on GitHub which looked promising, but after building it ...
2
votes
2answers
874 views

10MB/s speed on model 3 B+ gigabit ethernet

I'm running speed tests on raspberypi 3 b+ (gigabit ethernet interface). I've tested with ethtool from the terminal, and it shows Speed: 1000Mb/s Based on this result I assume both the router and ...
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 ...
2
votes
1answer
114 views

Swapping between wifi client and access point?

This question is an extension of the information on this post. This question looks the same as this one but it is not. I am using systemd-networkd. I successfully followed the instructions in the ...
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 ...
2
votes
1answer
2k views

Where is the Polyfuse of Raspberry Pi3?

I wan to test the polyfuse of the Raspberry pi3 B+ I try to find where it is but it said in the search result locate the F3 but there is no F3 in the board written anyone can help?
2
votes
2answers
1k views

How can I turn off Wi-Fi localisation on the Pi 3 B+?

I have the Pi 3 B+ and wanted to know if there was any way to turn of the need for the Wi-Fi localisation as when travelling around different countries and using my Pi as an access point I have keep ...
2
votes
2answers
38 views

I'm trying to run a python script at boot but keep getting “socket.error: [Errno 111] Connection refused” error

I've bought my first Raspberry Pi 3B+ last week and started working on my project but I seem to be stuck at this point. I've looked through a hundred different posts but none of the solutions seem to ...
2
votes
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 (...
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-...
2
votes
0answers
42 views

How can I force the Pi to wake a monitor

This question is not specifically a Pi question, but about how to FORCE the Pi hdmi to wake my monitor from sleep, which seems to be a seems to be specific to the Pi hardware, although it may be a ...
2
votes
1answer
169 views

Why can I no longer find gnome-mahjongg with apt?

I have installed the new release of Stretch for the Pi 3 B+. Apt goes to the Inrelease on the mirror and it does not seem to have the games? I like the Gnome-mahjongg package, but apt-cache search ...
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?
1
vote
2answers
92 views

How did I manage to fry my pi 3+B? Can I recover it?

I'm new to Raspberry pi and electronics in general. All worked fine (a node webserver, reading a DHT22 sensor) then I tried this tutorial - https://www.raspberrypi.org/magpi/breadboard-tutorial/. It ...
1
vote
3answers
5k views

RetroPie fails to boot on Raspberry Pi 3 Model B+ with rainbow screen and flashing red led

I downloaded the latest version of RetroPie (v4.3) to a formatted SanDisk 16GB SD card. When I try to boot RetroPie on a brand new Raspberry Pi 3 Model B+, it gets stuck on a rainbow screen. I've ...
1
vote
1answer
75 views

Handle data while filming with rPI [closed]

We will buy the BMPCC4k (This means 500GB/hour on a ssd), as we are a low/no-budget production, we can't have someone handling data. I had the idea to use a rPI3+ to use for this. But I'm not sure if ...
1
vote
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 ...
1
vote
2answers
1k views

Installing PyQt5 on raspberry: unable to imoprt PyQt5.sip

Trying to install PyQt5 on Raspberry Pi 3B, I followed instructions to first download, extract and install SIP and then download, extract and install PyQt5. Python 2.7 and 3.7 are both installed on ...
1
vote
2answers
79 views

Rpi3 log file opened and closed with python but corrupted on power loss - albeit file was closed

I have to ensure that every minute I open, write, and close a log file. It must be closed as we trigger power loss randomly on the Rpi3. I known it is bad and I also know that you want to use ...
1
vote
3answers
42 views

can't install opencv on my pi

I'm an absolute Raspberry Pi newbie. My intention is to get some camera vision project working for which I need OpenCV3.3's dnn Python module. I've found here a description of how OpenCV can be ...
1
vote
1answer
34 views

Running a Python Script with Tensorflow via systemd doesn't work, but running the same script via the terminal works

I have successfully coded a Python 3 Script that detects objects in a frame given my the camera. Based on those objects detected, I run commands and logic. I have tested this and I can run it via the ...
1
vote
1answer
64 views

Cannot find the drive with NOOBS files when trying to boot Pi 3 B+

Tried using this guide to install NOOBS on a micro SD card. After formatting the card with GParted to fat32 format, I simply unzipped the files from this page (NOOBS_v3_0_0.zip) and dragged all the ...
1
vote
1answer
32 views

Why does screen go blank while wifi data is being transmitted?

I got a Raspberry Pi 3 B+ with 2.5A power supply that came with it. I've connected a VGA monitor (via an HDMI-VGA adapter) and keyboard to it, and connected it to the WiFi. From the beginning, the ...
1
vote
1answer
48 views

My raspberry pi doesn't work after I execute “gpio -g write 1 0”

Sorry for my poor English. I just bought the raspberry PI 3B+ a few days, don't know what the gpio -g write 1 0 mean.After try this, my pi doesn't work now. the green led is also not lit. I have an ...
1
vote
1answer
459 views

OpenVPN on Raspbery Pi stopped working (no tun0)

I've been using a Raspberry Pi 3B (running Raspbian) with OpenVPN connected to a Portuguese IPVanish server for about a month now and everything has been great. In fact I've been amazed at the speeds ...