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4 views

Geared motors not moving under load when connected to Raspberry Pi using (L293D) motor driver

Even though the motors seen above are geared and strong enough to move the car against a decent load (because I have tried with the same battery, just without the L293D motor drivers and the ...
0
votes
0answers
5 views

picam shoots blank images

Raspberry picam is showing blank white images on raspbian buster.The raspberry picam was working with jessie.I tried raspistill -o test.jpg and got a blank white square in test.jpg.
0
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0answers
12 views

PIR sensor always high with Raspberry Pi 3

I'm working on a project in which I have a generic 3-pin PIR sensor
1
vote
1answer
20 views

ubuntu server nmcli is not showing ssids

I have raspberry pi 4 with ubuntu server 64 bit installed. I'm trying to connect my pi with another wifi but unable to connect. I used netplan to connect with first wifi successfully connected. but ...
0
votes
0answers
7 views

Running GUI within docker despite error

I am running ROS within docker and I try to use a GUI ROS node.(turtlesime) I succeeded (I could see the turtle) but in the terminal where I run it I got the errors: MESA-LOADER: failed to retrieve ...
0
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0answers
9 views

Installing .deb file to installer img [closed]

I am experimenting with custom raspberry pi os images that come preinstalled with certain packages. I downloaded a .deb file of an application I want to install and have the root directory mounted but ...
0
votes
1answer
27 views

Raspberry Pi & Motor Control

I am looking to use raspberry pi to control a motor that has multiple speeds but want all speed and timing to be controlled on the pi. Would the proper setup be a breadboard with a servo motor ...
0
votes
1answer
32 views

Run pad hole solderd shut raspberry pi zero w

So I made a big oopsie. I was soldering headers on to the raspberry pi zero w, when I accidentally solderd a run pad shut. I tried removing it with a soldering wick, to no avail. Did I create some ...
0
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0answers
20 views

Play a mp3 file on USB Speakers

I've been trying for several months to play music on my Raspberry Pi 3 or 4 with 0 luck finding a stable player for Python 3. I can get pygame to play until it crashes which is multiple times a day so ...
0
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0answers
21 views

Problems after attempting to connect to ethernet

Yesterday I had tried to connect my RasPi 4b to ethernet (it was on wifi before). It didnt work so I tried to revert back to WiFi. Now my static IP doesn't work. I tried editing /etc/dhcpcd.conf and ...
0
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0answers
39 views

Why is the GPIO number system seemingly random?

Here is the layout for the standard Raspberry Pi GPIO header: There are many different types of pins throughout the header in what appears to be a non-ordered fashion: The 5V power pins are next to ...
0
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0answers
14 views

Using TomTom LINK 410/510 with RPi [closed]

Basically, my car insurance comes to an end in a week or so. It’s black box insurance so I was wondering if the old device could be reverse engineered to work with an RPi. It is either a TomTom LINK ...
0
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0answers
18 views

HQ camera locks when using python library

The new HQ camera module is amazing and works really well using raspistill for long exposures. Using the picamera python library the camera locks with exposures above 10s (the maximum for the V2 ...
0
votes
1answer
23 views

Wifi connects and has an IP address but no internet when using school network

I have 4 Raspberry Pi3 B+ at my lab and three of them have no issues connecting to the school network. ifconfig returns: wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet ...
1
vote
0answers
13 views

Random network sleeps when using ubuntu 20.04 server

I am trying to setup a cluster of Pi4Bs, and have decided to use Ubuntu 20.04 server 64-bit. I have setup static IP via Netplan and have disabled cloud-init. (Wired ethernet interface) But after this ...
0
votes
1answer
38 views

external power supply [closed]

Using Rpi4. Using camera and IR lighting. Would like it to be powered by rechargeable batteries. What are my options.. I have found 'holding cases' for AA batteries but only for Raspberry 3s. I have ...
0
votes
1answer
28 views

Remote Desktop Connection and VNC Viewer give error on connecting with RPi Zero

I used to work on my Rpi zero on same windows 10 laptop via both remote desktop connection and VNC viewer. There was no issue at all. Then I didn't use my RPi for few months, and after that it won't ...
1
vote
4answers
63 views

How can I share my SD card image?

I need my SD card to be cloned and shared. One of the obvious way is to use Win32DiskImager. However it has some disadvantages: It's huge: it has a size equals to the size of the cloned SD card (even ...
-1
votes
2answers
34 views

Can no longer SSH into the Pi despite IP address not changing [closed]

so I haven't been able to ssh into my RPI since today even though I do see it's connected to my wifi. Nothing really changed from yesterday and not sure what happened. I just verified that the IP ...
1
vote
1answer
25 views

WiFi dongle works on raspberry pi 4 but when i put sd card and wifi dongle with PiZero it does not show up in ifconfig?

I am trying to plug a USB wifi adaptor to raspberry pi zero and I got driver problem so I removed the sd card and usb wifi adaptor and put it on a raspberry pi 4 and installed the drivers and when I ...
0
votes
1answer
32 views

Remote access to web server while openVPN is on?

My setup: Router: 192.168.2.1 with port forwarding to 192.168.2.3 (external 8080 because my ISP blocks 80, internal 80.) Pi4: 192.168.2.3 with Apache running to process occasional requests from my ...
-1
votes
0answers
22 views

Building A NAS and Plex Server [closed]

I am looking to use Raspberry Pi 4 to build home NAS from where I will run a PLEX Server for my tons of media. Here is what I have got so far: CanaKit Raspberry Pi 4 8GB Extreme Kit - 128GB Edition (...
2
votes
0answers
22 views

OS image made using Pi-Gen lacks JPEG support in GTK

I recently started using Pi-Gen to generate customized prebuilt Raspberry OS images for use with a RaspberryPI 4. I use the build-docker.sh script on a Linux Mint VM. However, in a test run with ...
1
vote
1answer
17 views

Cannot pip install adafruit-circuitpython-mlx90640

I am trying to install adafruit-circuitpython-mlx90640, a library for the MLX90640 thermal camera. When I run sudo pip install adafruit-circuitpython-mlx90640 I get an error that no matching ...
0
votes
0answers
13 views

Compiling GNU glibc 2.11.1 using supplied config file fails with armv7l not supported [closed]

I am trying to build an old glibc 2.11.1 for a embedded system using luckily an armv7 processor compatible with the RPi4 so not cross compiling... I am using Raspian downloaded today having ...
0
votes
2answers
30 views

How can I host images for my website on my Raspberry Pi? [closed]

My Raspberry PI runs 24/7 and I would like to be able to host images that are stored on that PI for my website. How can I go about doing this? Sorry for the lack of detail, if you have any questions ...
-2
votes
1answer
76 views

Why does Raspberry Pi 4 do not support USB boot?

I was searching for a way to boot from USB on RPi4. But I am always finding articles that is telling me that 3B+ has this boot feature but RPi4 doesn't. After some more finding I found that this is ...
-3
votes
0answers
21 views

Raspberry Pi Model 1 A+ Wont Boot

So, whenever I try to boot the latest image from this page on ubiquity, I always get this same error message. I dont know why, I asked google and I got the same boring responses, "did you check ...
0
votes
1answer
29 views

Getting data from 3 pin IR reciever

I am somewhat experienced with Raspberry Pi, but I just got a set of IR receivers and emitters that I can't find a good tutorial for. The receiver I'm having troubles with is the VS 1838B receiver, I ...
0
votes
0answers
28 views

Raspberry Pi 3 B+ SSH Connection Refused After Plugging in SSD

I am currently setting up a low budget DIY NAS with a raspberry pi 3 B+ and a Samsung 860 QVO 1TB SSD. The pi is connected to my router and I have been able to ssh into it with no problems. I have ...
0
votes
0answers
26 views

Automatically connect with the wifi network that has internet [closed]

I am seeking the best and easiest way to automatically/programmatically check for the network with internet connect with pinging for example google and then after checking 2/3 networks already defined ...
0
votes
1answer
19 views

pyModbusTCP: which IP address should be specified on a server?

I'm trying to make my Raspberry Pi 3B+ as ModbusTCP server and for testing purposes my PC as a client. I'm using pyModbusTCP module for this. My server script (RPi) is: from pyModbusTCP.server import ...
1
vote
1answer
13 views

Not getting an “Enter Pin” prompt when pairing with BLE device

I have a custom board that uses BLE to get Wifi credentials. I'm trying to pair with the board using my Pi. I'm using bluetoothctl. Here's what I get when I try to pair: [bluetooth]# agent on Agent is ...
0
votes
1answer
22 views

CRON service shebang

For CRON schedule that I am trying to run a .py file... Does the shebang at the top of a .py file need to state the version of python? #!/usr/bin/env python If I need Python 3, should this be: #!/usr/...
0
votes
3answers
44 views

Best way to gain access to more gpio pins on a raspberry pi 4

I am working on a project that requires the use of many gpio pins (ideally 100+). All those pins need to be able to do is turn on and off in a frequency of ~10hz. The only boards I was able to find ...
0
votes
0answers
26 views

Best way to expose a web interface without connecting to a Wifi

I've multiple small projects on raspberry pi zero w in mind. They are all some 3D printed part that will have some led, sensors, ... Usually, they will work independently, and some of them will be ...
0
votes
0answers
30 views

Raspberry Pi 4 only boots with a monitor connected [closed]

I got my rp4 and flashed Kali Linux onto it. I set up ssh which works perfectly only when the monitor is connected (doesn't make any sense at all to me). I have configured the pi from raspi config to ...
0
votes
0answers
10 views

eMMC wont boot anymore

i already managed to boot from the eMMC once, so i know it should work. my main goal is/was to boot from USB-Stick using the CM3+ I managed to do this using the CM3L module. Here are the steps i took: ...
0
votes
1answer
31 views

Raspberry Pi as Gateway and Router

My goal is to have wired internet on different devices using the tethering from a smartphone. My idea is that a raspberry pi receives internet over USB tethering of a smartphone, and acts than as a ...
0
votes
0answers
8 views

Pi4, Enhance BLE channel hopping

As the Cypress chip on RPi4 is handling Wifi and BLE, it can be useful if it would share Wifi channel information prior BLE connection. In BLE connection request RPi sends out the allowed BLE channels ...
-1
votes
0answers
21 views

Can't seem to get Netgear 340u beam to work in raspbian

I've been trying for years to get some kind of wwan card working on a raspberry pi. I've tried the AT&T LTE dev kit (got it working but not where I need to use it - protocol not supported). I ...
0
votes
2answers
21 views

Monitor only recognises the signal when started first

My monitor, an old Toshiba 47wlg66, will display what my boards output (whether it's my old raspberry pi 1 A or new raspberry pi 4 B) only if it was powered first. Otherwise it will remain black.. It ...
0
votes
1answer
24 views

Mirror imaging the Raspbian desktop for GPIO screens

How can I make the raspbian desktop look like I am viewing in front of a mirror? (basically backwards) I've already looked in the documentation for config.txt (here is a link) and tried to use rotate, ...
0
votes
1answer
19 views

Blank screen after boot when image from buildroot is used

I compiled the image using Buildroot (2020.02.3) by first running make raspberrypi0_defconfig and then by running make menuconfig to enable ccache and remove ifupdown scripts. I then ran make to ...
0
votes
0answers
10 views

BCM2835 datasheet addressing system

I've been interested in writing a kernel for my old Raspberry Pi for quite a while, and managed to make work some ARM assembly code I found on the famous "Baking Pi" course by the University ...
0
votes
0answers
7 views

Automatic KeyStone Correction of RPI CAM

I'm requiring a camera to be pretty close to a screen (100 mm perhaps) and off to the side of the screen so it isn't in the way. Easy enough except of course I'd get severe keystone errors. So my ...
0
votes
1answer
23 views

Raspberry Pi 4 - BCM2835 Library - SPI1 - data mode 1

I use the BCM2835 library to communicate in SPI with an ADC. The SPI0 interface is already used by a touch screen (https://www.pi-shop.ch/pitft-plus-480x320-3-5-tft-touchscreen-fuer-raspberry-pi-model-...
0
votes
3answers
64 views

Windows10/MacOS(64-bit) on Rasp Pi 4b 4GB RAM

I am looking to use Imaging Edge Desktop application on my Rasp Pi. Download here 1. The application has Windows and Mac downloads but is not 32-bit compatible. Thus, I am looking to download 64-bit ...
0
votes
0answers
5 views

Pi4, BlueZ Limit channels

(How) is it possible to limit the usable channels for bt connections? I.e I want to connect to a device with gatttool. As gatttool does not have any of this low-level setting., can I somehow limit the ...
0
votes
0answers
14 views

Vertical lines from Raspberry Pi Camera

I was using a raspberry pi zero camera as home surveilance and I needed to upgrade from pi zero to 3B+. I detached the camera module and connected to 3B+. When I took pictures there were only coloured ...

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