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Questions tagged [pi-3b+]

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

0
votes
3answers
104 views

WiFi won't start

I have a new Pi 3 B+ and am running openplotter version of NOOBS. When I boot, WiFi doesn't show on the top right of the home screen. When I run raspi-config for Network Options and WiFi, I get '...
-1
votes
1answer
77 views

Run Alpine on Raspberry PI 3 Model B+

I try to run my spare Raspberry PI 3 Model B+ with the most recent version of Alpine Linux (3.9.0). After I plugged everything in, HDMI, keyboard, LAN, SD Card and power, I don't get any reaction. ...
2
votes
1answer
65 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. ...
0
votes
0answers
26 views

Unable to get accurate RPM with Adafruit Stepper Motor HAT v0.1

I'm trying to drive some stepper motors using a Raspberry Pi 3 B V1.2 and an Adafruit Stepper Motor HAT v0.1 and am having trouble setting them to the speed I want. The motors have a step angle of 1.8 ...
1
vote
1answer
56 views

Cant install php

I'm kind of new to the linux os and I'm having trouble installing php. i needed a few tools for jasper which alwys show up in the error message. sudo apt-get install php -y Reading package ...
0
votes
0answers
34 views

Connect fans and display to rpi 3b+

I have a rpi 3b+. With it I bought a 3.5 inch display and a case with dual fans. But the pins for the fans (5v and ground) are the same with the display. How can I have them both connected to my ...
0
votes
1answer
42 views

How can I use the RPI3 to generate a sawtooth with frequency around 20kHz?

I am trying to generate a sawtooth waveform from the GPIO, the frequency is high, 20 Khz. is pigpio library my best option?
0
votes
0answers
59 views

Raspberry Pi mouse and keyboard not working

So last night I was using my Raspberry Pi just fine but my internet didn't work so i fixed it with sudo apt-get update and sudo apt-get upgrade. This morning I plugged it in and neither the mouse nor ...
0
votes
1answer
57 views

What is the max voltage that the Raspberry Pi can handle over the USB plug? [duplicate]

I've been trying to make my own lower-cost power supply for the Raspberry Pi (my cellphone wall adapters don't provide clean enough 5V power for the Pi 3B+) with a 12V wall wart I have laying around ...
0
votes
0answers
31 views

Corruption of external USB pen

I'm running Raspbian Lite on an RPi3B+. It's powered with a bench power supply capable of sourcing over 3A. I never see an "under-voltage" warning. My application requires an USB pen drive always ...
0
votes
1answer
34 views

Why is WiringiPi unable to find hardware revision?

I installed Ubuntu 18.04 on a Raspberry Pi 3 B+ and WiringPi following the instructions presented here. The problem is that when calling the GPIO utility, I get the following error: It seems that the ...
2
votes
1answer
37 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=...
1
vote
1answer
19 views

Need RPi3b voice control

I'm failing to find a simple way to control my RPi via microphone. I've fount some projects but they all require things such as Google AIY voice kit. Is there any simple way for me to control GPIO ...
0
votes
0answers
30 views

How to play specific video files through python script based on passed integer

I have an oddly specific problem, though aren't they all? I have a RPi 3B+ on stretch that I'm trying to boot into a python script that I've written that receives an integer and passes it to two ...
0
votes
0answers
52 views

Getting error: `/usr/bin/veracrypt: No such file or directory` after installing veracrypt

I am trying to install the armv7 version of Veracrypt on my Raspberry Pi. I downloaded it from: https://launchpad.net/veracrypt/trunk/1.21/+download/veracrypt-1.21-raspbian-setup.tar.bz2, unzipped and ...
1
vote
1answer
63 views

Cannot connect Raspberry pi to android using wifi direct

I am not able to connect to Raspberry pi 3 using Wifi direct from android phone, What I tried is Step 1: Changed the configuration in wpa_supplicant.conf and the contents are ctrl_interface=DIR=/...
0
votes
0answers
23 views

Wrong X and Y touchscreen axis after screen rotation on Raspberry Pi 3B+ and Raspberry Pi zero w

I can successful rotate the screen with display_rotate=1 (and display_rotate=0 to return back to landscape mode). But, I cannot get the X and Y axis to work correctly after the rotation. How can I ...
0
votes
0answers
18 views

Error: could not locate runnable browser

I am using Raspberry Pi3 B+, I have a problem with webbrowser module, when i run my Python 2 Program Code: import webbrowser url = "youtube.com" chrome_path = "/home/pi/Desktop/Chromium Web Browser" ...
0
votes
1answer
23 views

Cant ping externally raspberry pi3+

New to Raspberry pi so this may be a rookie problem. I installed Raspbian as per instructions and all seems well, including browsing, compilations etc. I am connected via wifi and ifconfig shows a ...
3
votes
1answer
112 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 ...
0
votes
0answers
36 views

How to toggle a push button to capture an image and insert a string in a text widget?

I have a project that involves capturing an image using a push button and after I use image processing I can convert it into a string. How do I make the string display the tkinter text widget while ...
0
votes
1answer
23 views

Android cannot connect to Pi's wlan

I'm running a Node server on port :3000 and want to access it from other devices using Pi's wlan0 address. wlan0: 169.254.36.22 Accessing from Macbook works Accessing from iPhone works Accessing ...
0
votes
1answer
34 views

Display most recent image in folder on monitor

I currently have a receiver system that downlinks real-time images of earth from a weather satellite to a Raspberry Pi, where it then stores them as jpgs. What I am looking to do is automatically ...
0
votes
1answer
41 views

I added a line to the cmd.txt file to clear password. Now, i cannot set a password

the file cmdline.txt got init=/bin/sh added to the end. When I reboot, I do not need a password. but It will not allow me to create one either. do I need to now remove the added instruction? in order ...
0
votes
1answer
53 views

two PIRs problem

i am building a security system which consists of two PIRs (GPIO 17 & 18) relay GPIO 24 , video will be emailed and will receive a text message when motion is detected . the camera can see both ...
0
votes
1answer
13 views

HAT Compatability RPI A,B and B+

I'm working through the HAT specification. The raspberry PI A and B have a 26 and GPIO headers, while B+ has 40 pin GPIO. https://github.com/raspberrypi/hats Am I correct to reason that if I design ...
0
votes
0answers
14 views

Apple iAP 2 Bluetooth profile support on Raspberry Pi

I have an RPi 3 B+ model and I know it has a Bluetooth chip onboard. Then I have found that BlueZ Bluetooth protocol stack can be installed on it. But there's no Apple iAP 2 protocol support out of ...
1
vote
1answer
83 views

H.265 playback. CPU usage: 385%

Brand new Raspberry Pi model B+ with heavy cooling system. Trying to play a 1920x1080p h.265 video. VLC/ffplay shows 1 frame/minute, impossible to watch. CPU usage is reported 385.5% by top. Is it ...
0
votes
1answer
39 views

Python program issue run at bootup, just work one time [closed]

I have some problem on Rpi3. I work for kiosk program. I created python script. If rpi connect to internet, chrome shows page from internet but if there is not internet connection on pi, chrome shows ...
0
votes
0answers
49 views

180 panoramic based on multiple cameras

Need some help please :) I would need some help to find the best option for a product upgrade. Right now, it consists of a Raspberry Pi 3 B+ with the Camera Module v2 and an external mobile ...
0
votes
1answer
35 views

Transferring data from Pi to Pi? [closed]

I have two Raspberry Pi's one of them is connected to a ThingsBoard platform and was working just fine, I tried to copy the Python code from the SD card to a new one, then I started the Pi but it didn'...
0
votes
1answer
32 views

Trying to run sh script at boot without gui…please help

i've been searching for hours trying to find a solution to this, what should be a simple problem. I've setup my pi to run a sh script at startup that uses omxplayer to play a folder full of videos. ...
0
votes
0answers
33 views

Set variable PATHS_FROM_ECLIPSE_TO_PYTHON debug remote PyDev

I want to write my Python scripts from my Raspberry Pi 3 b+ in my Eclipse IDE (Windows 10) and be able to debug them. I installed Pydev and RSE plugins on Eclipse. I installed Pydev on my Rasp Pi ...
0
votes
1answer
186 views

Switch between wifi client and access point without reboot

I want my Raspberry Pi to be used as access point or as client connected to my internet router but not both together. So I want to switch between these two modes with one simple command without ...
2
votes
3answers
67 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 ...
0
votes
1answer
197 views

Rainbow Screen and Lighting Bolt while booting Ubuntu Mate on RPi3 B+ [duplicate]

I have installed the Ubuntu Mate Image for the Raspberry Pi that I found here https://ubuntu-mate.org/raspberry-pi/ - During the boot process the only thing that appears on screen is the rainbow ...
0
votes
0answers
53 views

PiCamera not working with mmal error

I have Picamera v2 which I have been using Rpi3 for a while now and it has been working properly. Using vcgencmd get_camera I get supported = 1, detected = 1 But while i run raspistill -o cam.jpg. I ...
1
vote
0answers
17 views

raspberry pi display reverse color issue

my problem with the Raspberry Pi Official 7" Display: In this page I found this: My display fades out to weird patterns when I shutdown/reboot my Pi. Don't panic! This is perfectly normal. ...
0
votes
1answer
80 views

Can't SSH Into Headless Raspberry Pi 3 B+

I have a Raspberry Pi 3 B+ and I'm trying to use it to run some servos. I'm brand new to the hardware and networking part of this setup - I only have experience with programming, but not this part. I ...
0
votes
0answers
46 views

Raspberry Pi 3 won't boot, red LED light only

I was using my RPi for testing the sensors of my project, when suddenly it stopped and won't boot after that. I did not touch anything nor destroyed parts of the pi. The sd card is working fine as it ...
0
votes
1answer
20 views

Raspberry pi + L298 H bridge motor speed reduced when battery circuit shows 50%

I made a raspberry pi car. The pi is powered by two 18650 (Breewell New Multipurpose Flat Top 18650 Battery 2000 mAh 3.7 Volt Lithium Genuine Rechargeable Battery -Pack of 2 https://www.amazon.in/dp/...
0
votes
0answers
20 views

Blinking green ACT led with no SD card inserted [duplicate]

My pi (Pi 3) with Hassio on a miniSD card in it decided not to work one day with intermittent random green blinking light after I disconnected it to move it to another room. I was running Hassio on ...
0
votes
1answer
111 views

Access point as a Wifi repeater for WPA2-Enterprise network

So this is a little bit of a random question but I'm attempting to follow this tutorial to set up a wifi repeater with my Raspberry Pi 3B+. I can get the Raspberry Pi to generate a network that can ...
1
vote
2answers
119 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 ...
0
votes
1answer
31 views

How to connect with a 24 VDC Ultrasonic Sensor

This is probably a rookie question but I was interested in hooking up my RPi 3 B+ to the following ultrasonic sensor to measure water level in a humid environment (for arguments sake, the Pi will not ...
1
vote
0answers
51 views

Raspberry Pi 3B+ Bluetooth undiscoverable on iPhone

I installed latest version of Raspbian Stretch with desktop (which comes with pre installed bluetooth). I turned the bluetooth on, and made it discoverable. At the same time I searched for available ...
0
votes
0answers
16 views

Pi stopped booting after one night

Last night I set up my Raspberry Pi Model 3B+ as a Samba Server with an External Hard drive. After connecting to it on one of my PCs, I went to sleep. I also had VNC Server set up on the Pi so I had ...
-1
votes
3answers
53 views

How can i Get 5 Volt output with GPIO

I am using Raspberry Pi 3 B+ and I want to run a 5 volt DC motor with RPi.GPIO, I have written a code: import RPi.GPIO as GPIO from pip._vendor.distlib.compat import raw_input u = raw_input('how ...
0
votes
1answer
119 views

Cannot resolve local hostname of my Raspberry Pi

Currently I am using a pi 3 model B+ as a mopidy server. I set this up at home and I was able to access the pi with the hostname from a browser (e.g. going to http://hostname.local/ in a browser). I ...
0
votes
1answer
37 views

RPI Motion service delay on restart

Is there any way to delay the start of the Motion service on RPI restart? I'm having an issue where v4l does not make it yet to provide /dev/video0 but Motion is already trying to open it and ...