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Questions tagged [pi-3b+]

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

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8 views

How to send email from Pi using python without smtplib?

I am new in Raspberry Pi and I am trying to send mails without using SMTP. I have used SMTP before and it works perfectly fine. I just want to know are there any ways besides SMTP?
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0answers
22 views

How do I read all registers of an INA219 sensor via SMBus in Python at once?

I'm trying to Connect my Raspberry Pi 3B+ with a Raspbian 10 to an INA219 current sensor (that also returns voltage and a premultiplied power) via SMBus in Python 3.7. After destroying one Raspberry ...
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0answers
32 views

Raspberry pi with 1.3" oled i2c screen

I'm currently trying to use this 1.3" i2c oled screen with the Adafruit oled i2c library, but I'm currently getting this issue: I have made sure to run the setup.py and all of the code is the same. ...
1
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0answers
34 views

How to split a display into many and access all the screen

I'm trying to split the screen in raspberry-pi. and access each screen for each display I want the multiple layer in a single screen. Eg. my output screen resolution is 1024x720 in that i have to ...
-2
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0answers
24 views

Why can't I get to the log-in screen?

An error just comes up stating that the password and username is default and needs to be updated. We can't make it into the initial setup. There's no space to type. What do I do?
0
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2answers
38 views

Raspberry Pi 3 B+ won't boot up after 1 week of use

So I just got a new raspberry pi 3 b+ earlier this week by RS Components and I got it working on the first day. A couple days I shut it down and later when I tried to turn it back on, it didn't all it ...
-1
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1answer
28 views

After my script crashes, I can't run any more scripts, RP 3 Model B+

I am running a script that is probably crashing. When I run it, nothing seems to happen, so I hit Ctrl + Z to halt the program. But then I can't run any other script on the Raspberry Pi 3 Model B+. ...
1
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1answer
42 views

When I make a clone of my SD, the resulting image has ethernet problems

First of all, I'm working with Ubuntu Server 18.04, on a Raspberry Pi 3b+. I'm running a server with Nodejs and MongoDB. Everything works perfect. The problem comes when I want to clone the SD into ...
1
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1answer
32 views

RPI not booting, only red LED, not the SD card

My RPI 3B+ won't boot up anymore. Only the red LED lights up, the green one remains off. I use the official power supply, and my SD card is not corrupted. My SD card realy isn't the problem: I tried ...
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0answers
21 views

Timed trigger for GPIO input

I'm running a raspberry pi system that records fish as they swim passed an IR break beam sensor at a fish ladder. So far the system works well but I'm trying to cut down some of the false triggers. ...
0
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1answer
13 views

Using pigpios waves and audio output

I am using a Raspberry Pi 3 B+. I want to play audio through the 3.5mm jack and use PWM at the same time or successively to simulate a IR-Remote. I know that you can't use the hardware PWM while ...
3
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1answer
29 views

Won't mount btrfs file system unless you try to mount each disk separately

I have a pi 3b running raspbian 10, installed fresh this morning. All was going well until it ceased to be able to mount my btrfs volume. The error I get is as follows: mount: /drive: wrong fs type, ...
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0answers
12 views

Restarting another python script that is running from a running python script

I know that os.execl(sys.executable, sys.executable, *sys.argv) restarts the current running python script. But what if I have two scripts that are running and under certain conditions, the main ...
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0answers
40 views

RF ISM 433MHz Module Using Rpi RadioHead Low Speed Problem

I have a rf module 433Mhz which consist of a transmitter and a receiver, I used virtualwire and Radiohead library in Arduino and it's pretty fast. When I shifted that to rpi there were no dedicated ...
2
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2answers
68 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 ...
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0answers
10 views

rp3 can't boot openelec

I am using rp3 and trying to install openelec from here and using the second one for rp2 and 3 I tried to format the sd card to fat32 Tried to copy the image after extraction using dd Tried using ...
-2
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2answers
28 views

Is L293DNE Dual H-Bridge Motor Driver Chip/Board also a 5V voltage regulator/converter to power the Raspberry Pi itself?

Have been reading many articles showing how to connect DC motors to the Raspberry Pi and of course a DC Motor Driver Chip/Board is needed to come between DC motors and the Raspberry Pi GPIO Pins to be ...
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0answers
18 views

Unable to make RPi image through win32diskimager any solution? [closed]

The SD card with RPi OS is corrupted while trying to make a flashed card and I tried to create its image through Win32 disk imager. I keep getting I/O error while reading.
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0answers
29 views

How to debug headless WiFi connection?

I'm trying to run Raspberry Pi 3B+ in headless mode: I'm doing this by placing ssh and wpa_supplicant.conf files in the root of the boot SD card folder. What I can do if something went wrong? Is ...
0
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2answers
78 views

How can Rpi3B+ read the output of the 801s vibration sensor module?

Currently I'm trying to do a project using rpi 3b+ with 801s vibration sensor using this tutorial https://github.com/Shmoopty/rpi-appliance-monitor#notification-settings I'm beginner with rpi and ...
2
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1answer
43 views

SSH works on eth but not wifi and other services do work always [closed]

So this is driving me crazy. Basically my problem is that I can ssh to the pi if the ethernet cable is connected but not if disconnected. It sounds like a typical network problem so far, but it is ...
0
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1answer
26 views

Different Boot behavior for cloned Pi

I am running a python script on my Pi 3 B+ and registered it in a crontab @reboot so it is executed when booting the system. On my development Pi everything works fine, but when I clone the SD-Card ...
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0answers
15 views

CompoundPI unidentified server problem

I am trying to use CompoundPI (https://compoundpi.readthedocs.io/en/release-0.4/quickstart.html) with two RPIs and an ubuntu client. CompoundPI connects multiple RPIs, that each of them has a picamera,...
1
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1answer
81 views

Need help for iptables/filter

Setup: RPi connected to router using ethernet on subnet 192.168.0.0/24 which is also an access point access on subnet 192.168.43.0/24 So basically devices will connect to my Rpi for VPN traffic I ...
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0answers
43 views

Rapberry Pi 3 | Chromium Aw Snap

I'm running into a recurring issue and I can't seem to find a resolution for it that works. Pi info: Linux version 4.19.79-v7+ (dom@buildbot) (gcc version 4.9.3 (crosstool-NG crosstool-ng-1.22.0-88-...
1
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1answer
45 views

Measuring the power consumed by raspberry pi 3

I have powered up my RPi and I want to know which signal could be used to measure the current consumed by the RPi. I have DAQ card and I would like to know which part (or signal) I can use to measure ...
0
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0answers
20 views

bind event from evdev to GUI wxpython

I have buttons and joystick as in the image below and I am reading events from these inputs on raspbian with the evdev library, I am also running a GUI using wxpython. My question is how can I bind ...
2
votes
1answer
84 views

Rpi3B+ and Audio Amplifier HAT GPIO Pin Push Button False Detection/Triggering Problem

I'm currently having trouble with my project. I'm using a Raspberry Pi 3B+ with an InnoMaker Hifi Amp Hat and some push buttons. import time import signal import os import RPi.GPIO as GPIO GPIO....
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0answers
29 views

Getting error on Raspberry pi 3 while trying to run chromium in app mode

$chromium-browser --window-size=1080,960 --window-position=0,0 --app=/home/pi/Desktop/python/LMMS.html --disable-quic --enable-tcp-fast-open --ppapi-flash-path=/usr/lib/chromium-browser/...
-1
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0answers
29 views

How can Rpi3 remotely turn on and off home lighting (perhaps using a wireless power switch)?

So I happen to know some python to turn lights on and off in rpi3. Also to automate my home I know how to use relay boards. But the problem is that I have one rpi3 and the light which I want to ...
0
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0answers
29 views

unable to scan the ip address of Raspberry pi 3 B+ by using advance ip scanner

I have connected the raspberry pi to the laptop without using Ethernet cable (I am getting power (5v) from the laptop). I have inserted a file in the SD card of Raspberry Pi for WiFi connection ...
0
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3answers
131 views

Rpi3B+ micro USB connector got 15V power. Is it dead? Can I save it?

I accidentally gave 15V to a Raspberry Pi 3 B+ Micro USB slot, when I observed some smoke I instantly removed in from the power supply. What can I do to restore my Raspberry Pi?
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0answers
44 views

Enable Fine Timing Measurement (FTM) on Raspberry Pi 3B+

Is there any way I could create a mesh of Raspberry Pi 3B+ access points supporting the IEEE 802.11mc standard? I'm interested in experimenting with the Wi-Fi RTT Android API for indoor positioning ...
1
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2answers
17 views

Cannot connect to Xserver during CLI boot

so i want to autorun my python script after boot in a CLI boot however it seems that its giving me an error "Cannot connect to Xserver". My python script uses a camera i used crontab to autorun my ...
1
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0answers
34 views

How to compile firefox nightly on Raspberry Pi 3?

I am running ArchLinux ARM on the Raspberry Pi 3 model B. I would like to install Firefox nightly on the raspberry pi 3 model B. I can find similar questions on the internet, but most of the answers/...
1
vote
1answer
57 views

Begineers - I need dual Wifi on Raspberry 3b

I describe the situation which i need help. I have installed raspbian with RASPAP. I need from my raspberry to deliver 2 wifi ssid: Work, not DHCP, transmit the ethernet on wifi for workers.192.168....
0
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0answers
40 views

Why the script hang for 2 days?

I am running a python script to check the internet connection of a wifi network. It is being run for every 10minutes. Afwer a one month of working, the scheduler is not invoking the actual function ...
0
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0answers
88 views

VLC stream RTSP USB webcam

I'm trying to stream a usb camera using VLC. I used this page to get it working on a pi zero with a raspberry pi camera attached to it. On a second RPI 3B+ I'd like to do the same only with a USB ...
0
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1answer
42 views

Raspberry Pi 3B+ input pin strange behavior

I have few switches connected to Raspberry Pi inputs. Internal pull up resistors are enabled. When I connect pin to the ground Raspberry Pi behave fine - pin state is low. However when I disconnect ...
0
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0answers
22 views

Mode of configuration on Zigbee

I connected one Zigbee with an overlay shield fixed on the RaspberryPi and one Zigbee attached to a vibration sensor. What mode should I configure on the Zigbee's?
0
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1answer
50 views

Not allowed to use internet in France?

According to the Declaration of Conformity, only indoor use is permitted. Is this just regarding the WiFi, or the whole Pi? What's the reasoning behind this?
0
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2answers
58 views

Command for checking all devices attached to RPI

Is there any command for listing all devices attached to RPI(light bulbs, buzzers, USB-s, etc.)? If there is no that command, how can I check it?
1
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1answer
155 views

Rpi3B+ buster USB to Serial (/dev/ttyUSB0) Communication Problem

I'm trying to establish a serial communication between my Raspberry PI 3 B+ - running on Raspbian 10 Buster - and a testing machine I have. The normal behavior of the machine is to send test related ...
0
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0answers
22 views

Raspberry PI 3B+ won't connect to smartphone Wi-Fi hotspot if it's “Shared wifi” instead of 4G+

I have a Samsung Galaxy S8 and a Raspberry PI 3B+. The PI can connect to a normal Wi-Fi without any problems. The PI can connect to my S8's hotspot if internet is from 4G(+) The PI CAN NOT CONNECT to ...
2
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2answers
92 views

Adding I2C Bus with dtoverlay Does Not Show Up in i2cdetect

I am trying to set up multiple I2C interfaces on my pi. I have added the following lines to my /boot/config.txt and rebooted: dtoverlay=i2c-gpio,bus=4,i2c_gpio_delay_us=1,i2c_gpio_sda=29,...
3
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3answers
160 views

Cannot set static IP address for Wi-Fi

I am trying to make static IP address on RPI 3B+ for both ethernet and Wi-Fi. I was following this answer(How do I set up networking/WiFi/static IP address?), but still could not do it. So far I ...
0
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0answers
30 views

Voltage troubles with Pins (Relais stays on) [duplicate]

I am having troubles setting a simple Relais to On and Off. My code is quite simple: GPIO.setup(RELAIS_PIN, GPIO.OUT) GPIO.output(RELAIS_PIN, GPIO.HIGH) time.sleep(2) GPIO.output(RELAIS_PIN, GPIO.LOW)...
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 ...
-3
votes
1answer
42 views

How to send data wirelessly from Raspberry pi to another network at remote place? [closed]

I have to live stream video feed captured from rpi to the remotely placed device which is connected to another network. Please help me finding any link or any stack exchange post. My rpi is connected ...
0
votes
1answer
19 views

Stacking together two I²C hats with different voltage

I plan to make a domotic system based on a raspberry pi. I choose a grove hat to connect sensors and relays, but I need a digital potentiometer and grove system does not have that. So I plan to buy ...