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How to capture and transfer images capture by raspberry pi camera to the laptop using python code?

I am working on project of user interface that automatically captures images from raspberry Pi and send it to laptop over ssh. I want to write python code on laptop that automatically ssh raspberry pi ...
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  • 1
-2 votes
0 answers
28 views

WIFI wireless safety

I have an internet box with a wifi access point. I have a raspberry which is connected to this wifi access point. Everything works fine. But, at night, i want to stop wifi communications. I can't ...
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  • 103
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1 answer
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I am using Raspberry pi 4b, when I try to connect with wifi a problem could not communicate with wpa_supplicant

I am using lite os (for using open media vault 5). Yesterday I use my wifi with my pi and it works fine. But after install OMV5 I tried to connect with my wifi but a problem occurred. It says Could ...
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0 answers
10 views

How Can I modify Wifi Proxy manual in raspberry pi?

I can change proxy manual in my android phone But on raspberry pi There is no wifi settings so How can I change the proxy manual in my raspberry pi
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1 answer
24 views

Spi wrong voltage

Obviously, my spi is not happy. MISO and MOSI were idling around 1.5v instead of 3.3 so I added a 10k pull up, and that helped a bit, but as you can see, it's still not good. It idles around 2.8v ...
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0 votes
1 answer
22 views

Can camera be placed in hermetic box

I want to use my Raspberry Zero camera OV5647 (with transistors on a wire) on air so I need to protect it from rain and corrosion. I want to place it in a hermetic waterproof plexiglass box but should ...
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0 votes
0 answers
21 views

Why VGA VSYNC and HSYNC need 47 Ohm resistors in this schematic?

In Chapter 3 in this document there is a schematic showing a connection to VGA: https://datasheets.raspberrypi.com/rp2040/hardware-design-with-rp2040.pdf Why is there a 47 Ohm resistor connected to ...
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  • 131
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2 answers
24 views

How to create a data signal using pwm from a gpio output?

I'm a new member of the raspberry pi community and I have problems with starting my first project. I want to be able to create a data signal using pulse width modulation with the gpio headers. The ...
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1 answer
22 views

whats the difference between systemd service and running app directly?

In what ways are things different when running an app directly as a user, vs running the same app as a service with systemd? I wrote an app to play audio cues on my RPI. It is working perfectly when I ...
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0 answers
16 views

Different UART behavior between ttyS0 and ttyAMA0

I'm using serial to communicate with this board (Serial-CAN-Board) on a RPi4. UART is enabled with enable_uart=1 Console over serial has been disabled with raspi-config and I am using SSH over ...
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0 answers
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How to get an Adafruit 16x2 Character LCD kit to print information at startup running in headless mode [closed]

I'm using the following kit to print to an LCD: https://learn.adafruit.com/adafruit-16x2-character-lcd-plus-keypad-for-raspberry-pi and the associated python classes / library the webpage lists. I've ...
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0 votes
1 answer
36 views

Heatbed module control with Raspberry Pi 3+

I want to control a nichrome wire with the PWM signal from a Raspberry Pi. The MOSFET modules that can be found on the net for the combination with a Raspberry became much too hot. So I decided to try ...
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0 votes
0 answers
33 views

How to create small SD Card Images?

The builtin SD Card Copier tool can create copies smaller than the system sd card, so it can be used for cloning the system into smaller cards. Is there a similar tool (running on any os) for creating ...
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  • 101
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0 answers
18 views

dhcpcd creates and deletes veth* interfaces in thousands

I run a RPi4 (4GB) with Raspbian 10 (buster) from a SSD. It's running docker containters with nginx, nextcloud, pihole and some others. The RPi crashes from time to time. I found out it runs out of ...
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  • 1
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0 answers
28 views

run servo motor with external power bosen't work for me

I use 9v/0.5A DC cable to breadboard and connect servo motor but it doesn't work. Code might be wrong but I'm not sure. I connect raspberry pi - breadboard - servo motor like this and this is the ...
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0 answers
9 views

Can a RPi be network booted with an NFS other than NFSv3?

Please excuse me if I am asking this question in the wrong place: I'm trying to network boot Ubuntu 22.04 on a Raspberry Pi 4B, and I'm not entirely clear where Raspberry ends and Ubuntu begins :-) ...
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0 answers
18 views

I need to display a GUI on a small RPi screen and still be able to remotely access the RPI via XRDP or NoMachine [closed]

The small touch screen GUI (connected to the hmdi ribbon connector) will be reporting temperature, humidity, and motion with the odd text or audio report. I also want to be able to simultaniously ...
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-1 votes
0 answers
25 views

Camera plugged into raspberry pi timing out when taking pictures

I have a 170 degree fisheye USB camera module from ELP (camera model is ELP-USBFHD04H-L170). Yes, it's a configuration file I created using the command nano ~/.fswebcam.conf . I'm able to run the ...
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1 vote
1 answer
44 views

Is the waveshare 2.7 e-paper HAT ink display the right display for a pico?

I'm very new to programming on raspberry pi's and I haven't coded anything in about 5 years so bear with me. My company is asking me to connect a 2.7 e-paper hat INK display to a raspberry pi pico. I'...
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  • 21
1 vote
0 answers
16 views

RC522 not writing with raspberry pi

So I am new to this, I followed this tutorial https://pimylifeup.com/raspberry-pi-rfid-rc522/ and did exactly what they said in it. It looks like my RC522 isnt detecting any RFID card. Is there any ...
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0 votes
0 answers
15 views

CM4 Breakout Board Ethernet instability

I am creating a breakout board for the CM4 which should support Gigabit Ethernet and POE. I embedded a magjack onto the breakout board. I am struggling with the connection stability, however: the CM4 ...
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  • 101
0 votes
0 answers
13 views

Capture vga with RPI

I want to split a vga cable from computer A to a screen, and also as input into computer B (preferably a raspberry pi) for recording to a video file. Any hint as how to best go about it (software, ...
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0 votes
0 answers
19 views

Troubles with Systemd-networkd on RPi w/ Arch ARM?

My setup is: Raspberry Pi 2 w/ Arch Linux ARM. It’s been running headless from the get-go since 2019, used as a home server for Pi-hole and self-hosting my webpages. Pi is connected via Ethernet, and ...
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0 answers
18 views

Slave raspberry pi from laptop

I am working on raspberry pi which capture images from camera connected with raspberry pi. I want to direct raspberry pi from laptop to capture images whenever asked.
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  • 1
0 votes
1 answer
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Help, I mamed the RPI's networking drivers, and now I can't get it back to normal!

everyone, I messed up my RPI4B's wifi and networking software. BAD. Long story short , I followed a bunch of guides on how to host and connect to a wifi network at the same time (ethernet - acces ...
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-1 votes
0 answers
26 views

Rasberry Pi as an HDMI passthrough

So I've never posted here but have heard many great things, I figured I'd take a shot. Apologies in advance if I'm asking in the wrong spot or something that has already been answered, I looked but ...
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0 votes
1 answer
17 views

ICMPv6: NA: <MAC address> advertised our address <IPv6 address> on <iface>!

I have a Pi Zero W running Raspbian 11. It is connected via WiFi. I am using dhcpcd to configure my interfaces (the official method IIUC) with the default config file. I have a DHCPv4 and v6 server ...
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0 votes
0 answers
13 views

Help with Pi connected to lcd display

I connected my Pi to a 4in lcd display because the screen is split into four. I am not sure how to fix it to be in landscape mode and only one displaying. I've tried going into config.txt and using ...
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  • 1
-1 votes
1 answer
15 views

Triggering MAPIR camera with PWM via GPIO on RPi

I have similar setup as this post: PWM via GPIO to trigger a MAPIR Camera but a different camera: https://www.mapir.camera/collections/survey3/products/survey3w-camera-red-green-nir-rgn-ndvi. I am ...
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  • 99
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0 answers
13 views

RasPi Kubernetes Cluster and USB devices

I plan to cluster 4 raspberry pi 3b systems. If I use the USB in one of the non controllers will the controller acknowledge the device i.e. wifi. I created a cluster using kubernetes. I am new to ...
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  • 1
0 votes
2 answers
22 views

Powering 3 sensors from one 5v pin

I am powering 3 different sensor (a temperature sensor, an IR transmitter and an IR receiver) on my Pi. I would like to use the same 5V pin to power all three. I connected a jumper onto the 5v pin, ...
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  • 111
0 votes
0 answers
7 views

afpfsd fstab/automount issues

So I have read what few questions I can find on a problem with afp and am stuck. I can probably work around this, but am curious enough about why it isn't working that I wanted to poke the community ...
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0 votes
0 answers
10 views

Attribute: 'ModbusIOException' object has no attribute 'registers'

I try to follow exactly this video https://www.youtube.com/watch?v=ZlHqEOmvW6M You can have a look what I do : https://drive.google.com/file/d/1LenDiJVxT8wQUOlMbdDZ_VkIzqLvHmLJ/view?usp=sharing I will ...
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2 votes
2 answers
54 views

Sudo still works despite removing my user from group

I just installed the April 4th 2022 edition of Rasberry Pi OS and added a root password in addition to my user password. I also did.. deluser <userme> sudo I tested my new security adjustment ...
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  • 177
0 votes
0 answers
9 views

Installing Uctronics LCD35 software

Does anybody have experience with the Uctronics B0106 LCD 3.5" Display? I have made several attempts to install the driver software, with varying results. But now I'm stuck. I am following these ...
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1 vote
3 answers
45 views

What options exist to manipulate voltage using a Raspberry Pi, above 5v?

I have a model train set which runs on 0-12v based on the position of a rotary encoder. I would like to have somewhat granular, digital control over the voltage on the track. So far, I'd implemented ...
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  • 111
1 vote
1 answer
30 views

How to connect to ethernet when plugging in cable?

I have a raspberry pi 3 that is connect to my home network using wifi. But I have another network that is LAN only. What I want: When I plugin the LAN cable, I want the pi to disconnect from the wifi ...
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1 vote
2 answers
36 views

Can't access internet after setting static IP via eth0

I have a raspi image that I use to duplicate other pi's, sometimes I want to have more than one of them connected to my network so I can test things all at once. However, they get confused on the ...
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  • 13
0 votes
0 answers
15 views

Raspberry Pi 4 With camera and PIR sensor - Script issue

I have this code for detecting movement and recording said movement. This is my code: import RPi.GPIO as GPIO from picamera import PiCamera import time from datetime import datetime GPIO.setmode(...
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-1 votes
0 answers
17 views

Clone full raspberry sd card on another [duplicate]

I have a running raspberry pi with some software installed. It works fine. I have some extra empty sd cards and an usb-sd adapter. Is there a way to put the empty sd card on a raspberry usb port (with ...
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  • 103
0 votes
0 answers
21 views

Increasing value as PushButton switch is keep on being pressed [closed]

For now I'm doing a project involving a Raspberry Pi and a push button. I managed to control LED with the push button using PWM where as we pressed the button, the duty cycle value increase. However, ...
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-1 votes
0 answers
22 views

Problem connecting Arduino with Raspberry Pi using UART [duplicate]

I'm trying to connect my UNO board with my raspberry pi 3 using the UART pins on both. I'm sending the data from the Pi board to the UNO board. The following code is being used for the application: On ...
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1 vote
1 answer
41 views

GPIO only outputs 1.8V when using Bluedot

I have setup a basic circuit to control a relay using a Raspberry Pi 4B. I have tried controlling it with both a push button and the Bluedot app. When implementing with the push button, the GPIO pins ...
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1 vote
0 answers
31 views

Raspberry Pi and RFM69HCW (Adafruit) not working - SPI used (URGENT)

I am working on a project, and I was trying to get the Pi 4 working with an RFM69HCW module. I tried using spidev for this, and read the spidev documentation. I followed the steps but I keep getting ...
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  • 11
-2 votes
1 answer
35 views

Is it possible to use an old phone as a display for a Raspberry Pi?

I am trying to turn an old phone into a portable Raspberry Pi. I want to wire a Raspberry Pi Zero W into it's display and battery. Is this possible? If so, how do I do it?
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0 votes
0 answers
18 views

Desktop failed, booted into tty1

UPDATE-- while working on the problem I've noticed that on bootup, Linux generates 2 messages to display on the console before the "Rasbian GNU/Linux 11" prompt. Those are 1st: "[ 4....
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  • 177
0 votes
1 answer
27 views

Raspberry Pi more durable SD card, how? [closed]

I've heard that SD cards on Raspberry Pi's are very susceptible to defects because the Raspberry writes very often to the SD card and this SD cards are not designed for frequent write cycles. Is there ...
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0 votes
0 answers
35 views

Logging data from High Precision AD/DA board using Raspberry Pi 3B

I have a High Precision AD/DA board from waveshare with Raspberry Pi 3B (running on Raspbian). With this setup, I get a sampling rate of above 20KPS at my terminal display. However, I can write only ...
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0 votes
0 answers
21 views

My raspberry pi shows supported = 0 detected = 0 when I connect my camera

My camera was running alright on my pc before, but after connecting my lcd touchscreen with Raspberry Pi 3B+ and when I try running the command vcgencmd get_camera I get supported = 0 and detected = 0....
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  • 1
0 votes
1 answer
14 views

using serial port ttyAMA0 as primary port for rs485/modbus; permissions blocked

I cannot open /dev/serial0. I selected "turn on serial port" and "do not run a console on serial port" in raspi-config. The /boot/config.txt contains no reference to "console&...
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