Questions tagged [pi-3b+]

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

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votes
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85 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
382 views

Bare Metal RPI 3B UART not working

I have referred many tutorials to get UART working in bare metal environment on RPI 3. https://github.com/dwelch67/raspberrypi/tree/master/uart05 https://github.com/mrvn/RaspberryPi-baremetal/tree/...
3
votes
0answers
159 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
552 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
470 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
155 views

How to program active cooling connected to GPIO

I have Raspberry Pi 3b+ with the case, which has a small 5v fan, which is connected to GPIO. Look to picture below: Fan works all the time. But I don't want it. I want it to work only in case, when ...
2
votes
3answers
83 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
1answer
72 views

What does the raspberry pi “Run…” thing do?

I bought a raspberry pi a few months ago and i'm curious what the "Run..." thingy does.(see image) I was able, to write in some commands but i'm not sure, what it does with it... Can someone please ...
2
votes
1answer
3k 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
127 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 ...
2
votes
2answers
261 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
881 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
458 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
197 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
33 views

Raspberry Pi with touchscreen - screen turns white and pi restarts when trying to use LEDs

We currently have a Raspberry Pi 3B+ with touchscreen hooked up to a PCB, and are trying to run adafruit neopixel 60led strip but, when we try and send data using their library, the screen turns white ...
2
votes
2answers
673 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
57 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
3answers
152 views

How to recover 'deleted' microSD card space? [duplicate]

I've been playing around with my RPi3B lately and for whatever reason wanted to reformat my SD card. I'm unsure how I did it but now when I insert the card it says there is only 31mb of space. The ...
2
votes
1answer
186 views

Running a persistent node js server on boot and keeping the command line open

I know there are a lot of answers to this question but none have worked for me and I've been at it for something like six hours... Most of the answers also look like they are years out of date. I am ...
2
votes
2answers
2k 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
1k 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.
2
votes
3answers
47 views

Ribbon Cable for bridging the headers of Raspberry pi and Custom hats

Hello I am in need of a ribbon cable for my custom pi hats. The problem with ordinary ribbon cables such as this I could not make it to align the rows of the pins will get swapped because of the ...
2
votes
1answer
41 views

USB device not found in lxsession mode

When I use the desktop mode of Raspbian, I can find the connected USB device on my Pi in this path: /media/pi/'My Usb Disk' But when I use chromium web kiosk mode and lxsession I cannot find the ...
2
votes
2answers
43 views

Raspberry Pi getting burningly hot and not displaying

I tried turning on my raspberry pi 3 b+ and it wouldn't show anything to my TV, the entire Pi ( mainly around the SD card ) was so hot I could barely touch it. Bare in mind the pi was only on for ...
2
votes
2answers
254 views

How to automatically rerun python script if error occurs

I have python script which ideally runs indefinitely in loop. I am catching some exceptions, however, the problem is when some error occurs and script stops because of error. I want to detect somehow ...
2
votes
2answers
51 views

Determining how specific services were started?

I have a Raspberry Pi which is running well, and am looking at creating a status app for it. I have some services that are run on startup, and I want my app to check that they are running, and if not ...
2
votes
1answer
72 views

Getting OpenGL ES Framebuffer back to CPU Memory

I've started learning how to use OpenGL ES, and am trying to do some general purpose computing using the Pi's GPU. I've got it mostly working, but I'm hung up on the last step: getting a framebuffer ...
2
votes
1answer
195 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 ...
2
votes
1answer
197 views

Remote start a portable generator

I'm looking for a generator, one that can run my gear for at least 8 hours but also can be remote started. It seems either you get a portable generator, or a fixed generator with WiFi. https://www....
2
votes
2answers
136 views

How do I find the IP address of my Raspberry Pi 3B+

I don't have a HDMI screen, nor do I have access to the router. From what Ive been told, it has Kali installed. I am connecting the Raspb directly to the computer with a Ethernet cable. I have tried ...
2
votes
1answer
303 views

Simple python RFID (RC522) authentication system not working

I am a realative RPi noob so forgive me if this is a simple problem. I am making a keycard system with the RC522 reader, and I have everything wired up correctly. It works with writing and reading ...
2
votes
2answers
84 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
3answers
3k 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 ...
2
votes
1answer
816 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
1answer
2k views

OpenVPN on Raspberry 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 ...
2
votes
1answer
11k 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
36 views

persistent canbus data logging during power loss

I am trying to setup a robust raspberry canbus data logger. The pi will be installed on a mobile vehicle where the power to the pi is disconnected every time the vehicle is switched off, which will ...
2
votes
1answer
119 views

How do I setup DHCP on a 2nd port?

My Main Question How do I configure my RPi so that I can share its internet connection with an IoT device plugged in via ethernet cable in addition to sharing its internet connection via its wifi-...
2
votes
1answer
157 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 ...
2
votes
1answer
279 views

Raspberry pi 3 RFID RC522 Card UID is not same with USB RFID Reader

I'm working with RFID RC522 using Raspberrypi 3B+. I'm following https://github.com/mxgxw/MFRC522-python this package and works like a charm. I can able to read the data from the card, able to write ...
2
votes
2answers
154 views

Detect when the rpi3b+ has shut down

I have a pi in an embedded project. When the user turns the instrument off, I want to inhibit turning back on until the pi is done shutting down. I can do this with a timer circuit, but would like to ...
2
votes
1answer
154 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
39 views

Normal Work of RPi 3B+

I am newbie and i want to understand watching only on indicators, is Rpi 3 B+ work quite well? I mean, are green and red lights should glowing both permanently together or red light can glows ...
2
votes
1answer
93 views

Unable to exceed 100Mbps over 3B+ Ethernet link

I have an rpi 3B+ running Raspbian connected to a gigabit switch, and a Debian machine on the same switch. Both systems negotiated a gigabit link to the switch: $ sudo mii-tool eth0 eth0: negotiated ...
2
votes
1answer
368 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
2answers
550 views

AWUS036AC (rtl8812au) – ›Association request to the driver failed‹ after restarting wpa_supplicant.service

I am using an AWUS036AC wifi dongle to connect to the internet. I installed the drivers following this instructions. When I restart my wpa_supplicant@INTERFACE.service I get this error message: ...
2
votes
1answer
277 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
1answer
1k views

Upgrading to Latest Numpy Version on Raspberry Pi 3

I'm not sure if this is a Raspberry Pi issue, Raspbian Issue, Python Issue, or all of the above. So forgive me if this is the wrong place to ask this. I just got me a Raspberry Pi 3B+ and installed ...
2
votes
2answers
962 views

RPi to Arduino I2C block_data read fails with “Errno 121, Remote I/O error” (Python3)

Folks, I cringe to bring this up as it has been discussed frequently, but I am at a loss. Background: I have a Raspberry project with about 3000 lines of Python3 code and want to add a wireless ...