Questions tagged [pi-3b+]

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

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votes
1answer
694 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
438 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
187 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
124 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
422 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
54 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
103 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
160 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 Most of the answers also look like they are years out of date.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
1k 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
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2answers
66 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
1answer
124 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
115 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
99 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
212 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
61 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
716 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
1k 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
34 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
59 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
134 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
187 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
93 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
112 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
38 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
1k views

Boot from USB Connected SSD

It seems that existing guides of how to boot from USB are out of date, and the one here (https://learn.adafruit.com/external-drive-as-raspberry-pi-root/hooking-up-the-drive-and-copying-slash) didn't ...
2
votes
1answer
269 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
449 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
202 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
718 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 ...
2
votes
1answer
481 views

Restrict WiFi range of Pi 3b+

I want to restrict the wifi range of my Pi in order to only have a really small range of around one or two meters for my access point. I'm not totally new, but I don't know any way to reach the goal ...
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
794 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
1answer
3k 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 ...
2
votes
2answers
625 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
1answer
91 views

Editing Main Menu Item

I have an odd (to me) problem with a menu item. When I click Programming, I see the launcher I want but it has the wrong path. That is what I need to correct. When I right click and select properties, ...
2
votes
1answer
51 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
104 views

How to Package Custom RPI Kernel into *.deb?

I have compiled a custom Raspbian kernel from source because i need to enable the CONFIG_AUDIT flags for installing SELinux & Auditd. Following the Official Kernel Documentation i was able to do ...
2
votes
2answers
220 views
+50

Setting up Bridged VPN using: RPi 3G Hotspot router + openvpn client to connect to home RPi OpenVPN server

I have a Raspberry Pi 3B+ which is working as a hotspot using a Hologram Nova usb ppp0 device where it receives Internet from and routes the internet through WiFi and Ethernet. This Hologram usb ppp0 ...
2
votes
1answer
49 views

How durable are the Raspberry Pi and the Raspberry Pi Camera?

I plan to use my Pi and the Pi camera v2 no IR version as a wildlife camera. Now my question is can I run the camera in the winter (maybe -10 degrees Celsius) and will it still work like the Raspberry ...
2
votes
1answer
93 views

Using SD card from 3 B+ in 3

I have a SD Card wich works perfectly on my Pi 3 B+ but I want to use it in my other Pi 3 but the Pi doesnt seem to start. Is there something that needs to be changed to use the same Card for both ...
2
votes
2answers
86 views

Can I drive a custom LED matrix from my Pi

I have an idea for a project, but I am unsure of the best route to take. I am going to create a custom 11x10 LED matrix (addressable LEDs like WS2812) with the intention of lighting up certain LEDs ...
2
votes
1answer
34 views

CE1 not going low for pigpio.spi_open() with flags

I'm attempting to modify joan's test script (https://raspberrypi.stackexchange.com/a/44320/42126) for an RPi SPI master to communicate with an Atmega328P slave. I cannot change which GPIO pins I have ...
2
votes
1answer
130 views

Using an additional WiFi dongle to create WAP and switch

I followed the answer to this question: Access point as WiFi router/repeater with additional WiFi-dongle To have my 3 B+ act as a WiFi hotspot where wlan1 connects to the internet (WAN) and the pi ...
2
votes
1answer
55 views

Is CPU frequency scaling active?

We have Raspberry PI 3B+ with Pi Touch Display and Pi camera. Today, we measured power consumption and this setup takes around 1 A with Xorg+our app and around 900 mA when Xorg is stopped and only ...
2
votes
2answers
507 views

Opencv VideoCapture much faster than PiCamera

I am trying to process frames from my V2 RPI Camera at high framerates and am stuck with the picamera module. The VideoCapture class from OpenCV seems to be much faster than using PiCamera....