Questions tagged [pi-3]

For questions that apply specifically to the Raspberry Pi 3 and not other/all models.

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1
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1answer
39 views

Errors compile using mraa library with Eclipse IDE

I'm new to Eclipse IDE. I'm currently getting started with gpio library for Raspberry Pi 3 which is mraa on Eclipse IDE as well as a cross - compiler for in Windows Operating System. Errors I've got ...
6
votes
3answers
138 views

RPi 3 - Reduce power consumption

I am looking to reduce the power consumption to a minimum on my RPi 3. For my project, the Raspberry Pi Zero is not an option. for now, I disabled Bluetooth and WiFi and made sure to kill some ...
1
vote
1answer
82 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
33 views

Python script won't load on startup

I have tried like 5 methods to get this script loaded after raspi3 load. #!/usr/bin/python3.7 #sudo python /home/pi/masterBaseInterface.py import socket # Import socket module import ...
0
votes
0answers
16 views

Raspberry apache server not showing images and the site is acting weird

I'm hosting a site made with codeigniter in a raspberry 3 with Apache which is basically a form and the pictures aren't showing. I see the files are with user and group www-data and I'm trying to ...
1
vote
0answers
23 views

Different recording results under same code and raspberry pi

I would like to record videos using this code: RecordIntervalTime = 30*60 # 30 min def camRecord(): with picamera.PiCamera() as camera: camera.resolution = (640, 480) camera.framerate = 24 ...
2
votes
1answer
19 views

USB WiFi dongle not recognized as network interface: ar9271

I'm running raspbian stretch on a Pi 3. I used these instructions, to use it as a wifi and ethernet router with systemd-networkd while USB tethering with my phone: How can I set my up to be WiFi AND ...
1
vote
1answer
42 views

How to send video on remote web server using Raspberry Pi and camera module?

I want to create an IoT device that capture the video and send it to a remote web server via Internet. I don't want to create a webserver inside raspberry pi and access it in other devices like smart ...
0
votes
1answer
34 views

How can we allow OS to control backlight via a GPIO as PWM

I want to make OS control backlight, that is, use a slider in some DE like lxde or kde. How can I make kernel aware that, to control backlight only thing it needs to do is, produce a PWM signal with ...
1
vote
2answers
66 views

How to install Jasper on Raspberry Pi 3 (Model B)?

Sorry ahead of time, I'm new to Raspberry Pi's. I am trying to install Jasper by using its guide (https://jasperproject.github.io/documentation/installation/), but I cannot seem to figure it out. In ...
1
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0answers
30 views

How to control Midea HVAC (not standard) using Raspberry Pi

I have a Midea duct HVAC that has only the option of wired thermostat remote and it's not smart. I want to build something smart so I can turn on / off the AC or the heating remotely, but I don't ...
0
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0answers
19 views

PiCamera with TensorFlow using parallel programing

I would like to run a continuous stream with the PiCamera on the Raspberry Pi 3 and also do other computations in parallel with this stream. I only have to take from that stream(process) the object ...
0
votes
0answers
7 views

Permission Problems with Motion

I'm new to the field and wanted to use Motion to turn my webcam into a surveillance camera. But I can't start Motion. I always get this error message and I don't know what to do. I'm grateful for any ...
1
vote
1answer
63 views

I need help getting python 3

How do I get python 3 on the programming section on the main menu. I have tried watching multiple videos but I can not find anything that works
1
vote
1answer
46 views

Raspberry Pi 3B+ no wifi interfaces when setting up for first time

I have followed the instructions to create my SD card and boot it on my Pi. When creating the SD card I have added the ssh and wpa_supplicant files. During the initial installation at no time am I ...
0
votes
1answer
38 views

Raspberry pi 3 Whatsapp

I installed whatsapp on raspberry pi 3, but can't find information how I can use it in python script. I want to use it for door open/close python script. I have script working with email, but email ...
4
votes
1answer
62 views

How to Monitor GPIO Input Indefinitely Without Recursion

I actually joined StackOverflow to ask this question because I wasn't sure it was RPi specific, but as I was thinking about how to form the question, I realized it might be GPIO specific (for some ...
0
votes
1answer
41 views

Having a sound clip play and be looped as long as the button is pressed down and stops as soon as it is released

I am able to have the script running when I have the code set to pygame.mixer.music.play but if I do pygame.mixer.music.play(loops=-1) I get an error stating CallbackSetToNone: The ...
0
votes
0answers
21 views

keeps showing “^@” repeatedly

I boot just fine but when it is ready for login it repeatedly shows "^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@..." forever. Please help me fix this. Thanks!
0
votes
0answers
30 views

My Relay suddenly turns on and off, and this happens in a second

Well, I had written a code for Automatic Cooling with DHT 11, but I did not get any successful result in it, I want the Relay turn on when the humidity rises up, and I did not have any errors in my ...
0
votes
0answers
9 views

How to disable autologin(WIFI) gui in rpi3

I have a rpi3 in which it has a setting of auto login gui which connects to a wifi when it boots up. I want to disable the wifi auto login and enter my own SSID and password.
0
votes
0answers
19 views

My Pi 3 B suddenly stopped

My Pi 3 B+ suddenly stopped working. I formatted the SD card and put NOOBS 3.1 but it still won't boot. The red power LED is on but the yellow ACT LED does blink for sometime but I don't get any ...
0
votes
1answer
56 views

Multiples i2c devices with the same address

I am trying to find the simplest way to connect multiple 15 IMU sensors (ICM-20948) to a wearable suit.The thing is that they all have fixed addresses. The solutions I found so far are: Using a ...
1
vote
0answers
11 views

Trying to connect vnc server from my Pi 3 but getting blank screen in vnc viewer

Hey I have setup the VNC server and running chrome there and want to see the same view here in my RaspberryPi3. But I am getting the blank screen. I have done the same setup in my laptop it is ...
0
votes
0answers
45 views

Execute Python-Script on MotionEyeOS

I've recently created a Card with MotionEyeOS for the Raspberry Pi. I've tested motioneyeos already on DietPi and the normal Raspbian, but it didnt worked with the original Raspberry Pi-Camera. In a ...
2
votes
0answers
28 views

Safe cut power supply from raspberry

I want to cut safe the power supply from the raspberry with a relay connected to the gpio. I know how to connect to relay to the board but.. When the relay turn off the power line will be cut off to ...
2
votes
1answer
676 views

The docker repository does not have a release file

I'm trying to install Docker on a Raspberry Pi 3. I followed the instructions and ran: curl -fsSL https://get.docker.com -o get-docker.sh sudo sh get-docker.sh When I do this, I get the following ...
1
vote
0answers
19 views

RPi Quadcopter under RISC OS

it is well known that the pi is in recommended for the quadcopter as raspbian is not a real time operating system the question is, will using RISC OS offer any advantage over raspbian, and make the ...
0
votes
2answers
40 views

How do I download raspberry pi updates to a linux server [closed]

Relativity new to Raspberry Pi and Linux in general, but essentially I'm trying to create an update repository for my Raspberry Pis via a separate Linux server, how would I go about doing this? On the ...
1
vote
2answers
73 views

Utilising a Raspberry Pi as a wireless access point and a webserver

I have followed the official Raspberry Pi documentation's guide to setting up my Raspberry Pi as a wireless access point, with a shared internet connection using the bridge functionality discussed at ...
-2
votes
1answer
44 views

Start program when a device connects to local wifi

I'm looking for a python program that could detect when device has connected to a local wifi and start a specific program. And would communicate via SMS with raspberry pi.
0
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0answers
23 views

Raspberry Pi 3 Model B Hung / Frozen, Including Clock?

I just happened to check on a Raspberry Pi 3 Model B with Raspbian Jessie 4.9.35-v7+ this morning and found it unresponsive. IIRC, there is an LED that is normally on when the Pi is on, so I thought ...
2
votes
1answer
29 views

Any existing software which can safely update the Raspberry Pi with dual OS partitions?

We are using Raspberry Pis model 3B in some remote deployed products, each one is running a Raspbarian OS image. I'd like to investigate a software update scheme that would allow dual OS partitions, ...
1
vote
0answers
18 views

About code of GPS Neo 6M with Raspberry Pi3

Firstly my GPS only blinks led upto 1hour only and thereafter no connection in day. Why it is so? Also my this code is not working (with LCD display). It shows syntax error as SerialException: ...
0
votes
0answers
35 views

Using Raspberry Pi Camera (CSI) with Windows 10 IoT Core

I want to use the official Raspberry Pi Camera on my Pi which is running the current Build of Windows 10 IoT Core. I figured out that this will not to work using the UWP stack. Microsoft Tutorial ...
1
vote
1answer
205 views

No internet on client device when connected to Raspberry Pi [closed]

I've been trying to set up RPi to act as both a wireless AP and wifi station simultaneously. I've got nothing but errors and bugs so far. I did however find this guide that creates a virtual AP and ...
0
votes
0answers
25 views

Raspberry pi showing nginx welcome page on local IP after uninstall

I have been fiddling with nginx to make a reverse proxy for Deluge with no avail on my Raspberry Pi 3 running the latest version of raspbian. So, I attempt to uninstall it. I did the usual thing, sudo ...
1
vote
1answer
38 views

Power on a machine by pressing a physical button

There is a machine which usually runs in standby mode, and the only way to wake it up is by pressing a physical button with a small force and then quickly release. I want to remotely push the button ...
3
votes
1answer
64 views

netperf command doesn't exist on raspbian

I am trying to run some tests about network on my Raspberry Pi 3 B+, and I have raspbian on it. I installed flent via apt install flent, and I ensured that non-free repository is enabled. I still can'...
0
votes
0answers
45 views

selenium.common.exceptions.WebDriverException: Message: connection refused

I ran a program with selenium from selenium import webdriver driver = webdriver.Firefox() driver.get('http://www.google.com') and this error accured Traceback (most recent call last): File "/...
13
votes
8answers
7k views

What is the highest voltage from the power supply a Raspberry Pi 3 B can handle without getting damaged?

I am using Android things on Raspberry Pi 3 B with a 7-inch touch screen. Currently, I always see a yellow thunder bolt sign on the screen which means that the Raspberry Pi isn't receiving a high ...
0
votes
0answers
13 views

Adding Subtitle font in OSMC

Hi I have OSMC installed on berryboot. And I want to Add my own Subtitle fonts (.ttf). I tried to locate Font file from OSMC File Manager. But I only found a file named "addons" this was the path: ...
1
vote
1answer
58 views

False Contact Closures - Do I Need Physical Pull Up Resistors to Resolve?

I'm running Raspbian Jessie 4.9.35-v7+ on a Pi 3 Model B. I cobbled together a basic python script to monitor a GPIO pin and send a network signal to a remote application, made two copies of the ...
0
votes
1answer
49 views

virtual keyboard RPI 3 model B

I tried installing the virtual key board as described here: Virtual keyboard activation on my RPI 3 model B Board but it doesn't work at all I get this when installing: pi@raspberrypi:/ $ sudo ...
1
vote
0answers
141 views

LIRC receiver problem after kernel update

I recently updated my raspberry pi 3 using sudo apt update && sudo apt upgrade . During the process rpi kernel got updated. uname -a Linux raspberrypi 4.19.42-v7+ #1219 SMP Tue May 14 21:20:...
1
vote
1answer
72 views

Raspberry Pi 3 B+ was connected to NRF24L01 in the following manner as in diagram but Raspberry pie not working after that why? [duplicate]

I connected VCC to 3.3V and GND to 5V of raspberry pie mistakenly. Now raspberry is only showing red light on and no green light blinking. What might be the probable reason. Is there any solution so ...
1
vote
1answer
20 views

Plex video problems on updated Chromium

I have a Noobs RPi 3 connected to my TV. After a recent apt-get upgrade, Chromium is no longer displaying video from my Plex server correctly (it was working fine before the upgrade). I get the audio,...
0
votes
0answers
22 views

Need help on how to apply arcade kit commands in Python code

I'm using Python on my Raspberry Pi to code some games for my high school finals project, and I want to play them with a arcade kit (Game DIY Arcade Set Kits Replacement Parts USB Encoder to PC ...
1
vote
1answer
22 views

ALPR on Raspberry Pi [closed]

I'm looking to do a quickie - that is, a simple project for ALPR on the Raspberry Pi. I would prefer to have the ALPR engine on the Raspberry Pi so that I don't have to send images over to the cloud. ...
2
votes
1answer
43 views

raspberry pi serial communication function (serialdev)

I'm working on a radar project and I want Matlab to send commands and collect radar data remotely from the USB port of a Raspberry Pi 3 B+. My setup is as follows: I have the radar connected to the ...