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Questions tagged [pi-3b+]

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

-5
votes
0answers
25 views

Control a linear actuator using raspberry pi [on hold]

I need a diagram wiring a 12v dc actuator, raspberry pi 3, LoRa gateway, 4 channel relay, and GPIO T-shape breakout expansion board. I also want to see a written python code that can do just that. ...
0
votes
1answer
18 views

Can't connect VNC through ethernet while the PC is connected through Wifi to internet

I'm pretty new to both Raspberry Pi and Linux, I have absolutely no prior experience so bear with me. My problem here is pretty annoying. What I'm trying to do is simply using VNC to control remotely ...
0
votes
0answers
15 views

wvdial and usbmode,switch not working raspberry pi 3B+

I am trying to get my ZTE USB modem to connect on my Raspberry pi 3B+. here is my lsusb output: Bus 001 Device 005: ID 1611:2800 Bus 001 Device 007: ID 19d2:0031 ZTE WCDMA Technologies MSM MF110/...
0
votes
0answers
13 views

problem installing canonTS9020 on Pi3-b+

I'm new to the rasberryPi / linux scene and need suggestions. After running the command below & launching cups 2.2.1 I can see a list of printers after pressing the "add printer" button as shown ...
0
votes
2answers
56 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
31 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
36 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
19 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
23 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
22 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
34 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
20 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
48 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
17 views

Raspbian remount partitions after some time [closed]

I noticed that after some time Raspbian Stretch Lite (slightly customized) remounts the first two partitions: [ 1454.889661] EXT4-fs (mmcblk0p2): re-mounted. Opts: (null) [ 1454.905023] FAT-fs (...
0
votes
0answers
23 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
29 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 ...
0
votes
0answers
10 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
28 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 ...
-1
votes
0answers
20 views

Unable to update date and time on NOOBS installation

I installed the latest version of NOOBS onto my Pi 3B+ and I completed all the steps but it shows the wrong date and time. I have tried all the possible ways to fix this but I can't seem to.
0
votes
0answers
27 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
0answers
31 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
15 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
16 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
19 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
66 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
25 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
21 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
33 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
38 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 ...
-1
votes
0answers
26 views

Problem using serial function on raspberry pi to interface with Arduino mega [Errno 2]

I'm brand new to trying out robotics and that type of thing and I've recently tried to use a Raspberry pi to control a servo through an arduino board using some instructions in a book I bought. When I ...
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
11 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
67 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
36 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
32 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
23 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
23 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
65 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
58 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
88 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
31 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
14 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
58 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
32 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
17 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
19 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
56 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 ...