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Questions tagged [pi-3b+]

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

41
votes
3answers
200k 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
15k 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 ...
9
votes
4answers
12k 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,...
7
votes
1answer
310 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 ...
6
votes
2answers
7k 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 ...
6
votes
1answer
1k 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 ...
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
226 views

Is it safe to power my external hard drive with a Raspberry Pi 3 B+ USB port?

I have a external hard drive that has written on it "5V ⎓ 1A". Both power and data transfer happen over a single USB. I have been reading about powering this hard drive with the USB ports on my ...
4
votes
1answer
282 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
930 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
904 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
66 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?
3
votes
1answer
201 views

Installing libraries via pip is taking forever. Raspberry pi 3b+

I tried to install scipy using pip3 install scipy as well as sudo pip3 install scipy and it got stuck at Building wheel for scipy for 45 minutes. Same is the case for cython. What is the fix or it ...
3
votes
1answer
1k views

Run steam link automatically when starting raspbian

I have installed steam link in raspbian stretch, but I would like it to start when the operating system starts, I've been reading and I tried it with init.d but it did not work for me. Thank you.
3
votes
1answer
338 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 ...
3
votes
1answer
2k 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
2answers
51 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 ...
3
votes
2answers
164 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
464 views

Raspbian - wpa_supplicant.conf Country meaning

I'm a bit confused of the country property in wpa_supplicant.conf. In official Raspberry Wifi Documentation it says this: On the Raspberry Pi 3 Model B+, you will also need to set the country ...
3
votes
1answer
43 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 ...
3
votes
3answers
60 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. ...
3
votes
0answers
59 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 ...
3
votes
0answers
116 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
339 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
365 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
3answers
69 views

Having some trouble identifying GPIO pins

Okay, some quick background first, I just managed to install Raspbian on a Raspberry Pi 3B+, and I started to try to do some projects. I started off with just writing python, which I'm happy to say ...
2
votes
2answers
78 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
2answers
112 views

Unable to flash Android of things on SD card properly

I have been trying to install Android of things on Raspberry Pi 3 B+ but cannot get it working. I downloaded latest android of things setup utility, ran it on windows 10. I have successfully flashed ...
2
votes
1answer
384 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
1answer
2k 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 ...
2
votes
2answers
163 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
2answers
78 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 ...
2
votes
1answer
48 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 ...
2
votes
2answers
398 views

Buildroot on Raspberry Pi With Lightning Bolt on Boot

I'm attempting to get a minimal buildroot system up and running on my Raspberry Pi 3 B+ but after I've flashed the SD card, installed the card, powered up the pi, and connect an HDMI cable, I only ...
2
votes
1answer
232 views

Why am I getting bash: esptool.py: command not found on new Raspbian install after installing esptool.py

I am having major difficulty in installing MicroPython onto an ESP3 using my RPi3B+ (may ask about this elsewhere) but for now I am trying to achieve this on a new fresh install/distro of Raspbian. ...
2
votes
1answer
410 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
3k 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
1answer
10k 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
3answers
1k 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
2answers
32 views

HELP, undo code that was for another touch LCD screen. Now it won't boot all the way

How can I undo the sudo code that was run with the wrong type of LCD "...-show" The system boots to a certain point and then just does not continue. Ive tried mounting the micro sd and see if I can ...
2
votes
1answer
37 views

Got compilation error when installing plyvel

I got an error while trying to install plyvel on my raspberry (pi 3 B+) with sudo pip install plyvel : Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple Collecting plyvel ...
2
votes
1answer
116 views

Media + Torrent box on Raspberry pi 3 B+

I want to make my Raspberry Pi 3 B+ a media & torrent box. In addition, I don't want to connect it to the TV - so I want the media to be shared via SAMBA or similar, control the pi through SSH ...
2
votes
1answer
83 views

Wifi direct connection disconnects automatically after a few seconds in Raspberry pi

I am using this configuration for wifi direct connection in Raspberry PI 2 B+ ctrl_interface=DIR=/var/run/wpa_supplicant driver_param=use_p2p_group_interface=1 update_config=1 device_name=...
2
votes
2answers
3k 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
1k 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
608 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 ...
2
votes
2answers
394 views

Is it possible to use Wifi and Bluetooth at the same time on a RPi 3B+?

I need to connect to WiFi and Bluetooth at the same time using an RPi 3B+. Is it possible or will one connection drop out or be very substandard while using the other?
2
votes
4answers
2k views

Connecting RPi to 2 different networks

I'm pretty new to Raspberry and I searched the net for a while now trying to find a good and simple answer to this question. Ok, so I have a network that is connected to the internet. I want to start ...