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4 views

Wakeonlan successfully wakes one machine but not the other

I'm experimenting with using my Pi as a Wake on LAN Server but only having partial success. I'm using a RPi 4 and two regular x86-64 desktop PC's. The Pi is running the latest RPi OS Lite and the PC's ...
0
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0answers
6 views

Service to run at boot ir-keytable communicating with a remote

I am trying to run a service at boot that can be executed via a single liner that enables me to use my remote control on the rpi4. I create under /etc/systemd/system my new service ir-keytable.service ...
0
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0answers
10 views

Python - How to automaticly open first available serial port (COM/tty)

I am new at Python and I want to learn serial communication between Raspberry and other devices like PC, arduino, sensors... I often plug and unplug devices like arduino, FTDI, etc. to COM port... I ...
-2
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0answers
9 views

Connect phone audio with raspberrypi

I am trying to make a google home assistant using RPI 3b. However, all 4 of my USB ports have suddenly stopped working. So I thought of maybe using a phone as a mic that would interact with the RPI. ...
0
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0answers
5 views
0
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1answer
12 views

Crontab does not work

I am trying to run either at boot or at intervals of 5 min (everytime basically) a command that enables me to use my remote control. Thus sudo crontab -e -u root, I add in crontab the following line: *...
0
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0answers
15 views

Reading usb stick using Pico

I want to read files from the USB stick (preferably FAT, Ext3, Ext4, and NTFS, but if that's too complicated, then I'll stick with FAT32) Is it possible without external modules (like CH376 for ...
0
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0answers
14 views

Red LED dim when powering on, and gradually brightens; No green LED; Potential power failure?

I tried plugging my Pi 4 in tonight and I couldn't shell into it. Turns out it never booted so I plugged it back in and noticed that it wasn't showing up on my Ethernet connections list in my router ...
-7
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1answer
28 views
0
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0answers
14 views

Where does printf() go on a headless raspberry pi with no ssh? [closed]

I’m currently designing a guitar pedal on a pi zero using port audio and sound pipe. So far all is well and I’ve set up my C executable as a systemd service to run on start up. My next step is to put ...
1
vote
0answers
8 views

Picamera on Ubuntu 18.04 64-bit

Is there any way to get picamera to work on Ubuntu 18.04 64-bit. I have tried: Compiling a non-official version of userland for 64-bit and it compiled, but the camera does not work I have tried using ...
-2
votes
1answer
16 views

raspberry pi to raspberry pi comunication via ethernet

What is the goal? I am having 4 pi's record videos via their SPI camera modules. one centeral PI which collects all of the video feeds the 4 recodring cameras are sending the video footage via ...
0
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0answers
15 views

Booting raspberry pi 3 model b (not b+) out of the box without SD card

My raspberry pi 3 B's sd card slot broke. Is there a way to boot it using USB or Ethernet? Are there any settings I can apply to a fresh install of Raspberry Pi OS on a USB drive? The board's version ...
0
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0answers
4 views

Second monitor stacks on top of first monitor after every reboot [Twister OS]

So I have this 5-inch HDMI screen that i got off of EBay, and it needs a specific screen resolution to show literally anything. Using xrandr I've managed to make it work as a second screen on my RPI4, ...
0
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0answers
12 views

Running Ubuntu ARM64 on RPI is unstable

I installed Ubuntu 20.10 on usb SSD drive for RPI4. Dragging the terminal from one side of the screen to the other I noticed it started to glitch. I loaded Firefox to search for the issue online and ...
0
votes
1answer
9 views

RPi Zero W, bad file system after first shutdown

Hey guys I'm facing a super strange problem that's been blocking me for days now. I have a RPi zero w and I can successfully flash the latest Raspbian Lite image onto the SD card and boot it up, but ...
0
votes
1answer
14 views

Raspberry PI 4B and Wifi

I am a new Pi user to the hobby. Looking at improving wifi performance I had a question because my research hasn't revealed satisfying answers. I have a couple USB wifi adapters. It seems necessary ...
0
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0answers
12 views

How to clone a Pi that has flash instead of an SD card

I'm working with the Pi CM3+, which has 32GB of flash memory (at least my specific one does). While of course it needed an image on an SD card to initially boot, since then it has been operating ...
0
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0answers
14 views

Power RPi4 only from GPIO pins (disable USB-C power input)

I am using the USB-C/power port of an RPi4 in "gadget mode" (acting as USB Mass Storage Device connected to 3rd party instrument that logs measurements to it). However, that USB connection ...
-1
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0answers
18 views

Use raspberry pi as LCD controller

I have an old laptop from wich i want to reuse the display as a secondary monitor. My question is if i can use my raspberry pi 3 b+ as controller for the monitor so I dont have to buy one or if this ...
0
votes
1answer
13 views

Problem with resetting Screen Resolution using cron job

I am running a cron job with @ reboot bin/sleep 60 /path/to/script. I know the job runs 60 seconds after reboot but I get an error. The script is: #!/bin/sh -e sudo xrandr --newmode "2560x1440_60....
0
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0answers
20 views

Cannot autostart supercollider on RPi4

I would like to start my supercollider code right after Pi boots. If I put in this into the terminal: sudo /usr/local/bin/sclang /home/pi/Desktop/mycode.scd or sudo lxterminal -e /usr/local/bin/...
0
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0answers
23 views

Is it possible to use Windows only SEAGATE external hard drives with a Raspberry Pi 4B? [closed]

How can I use a SEAGATE 8TB drive that is "compatible with Windows" with a Raspberry Pi 4B 4G? The Raspberry Pi seems to not recognize the disk in either of the 4 USB connectors. The drive I ...
1
vote
1answer
16 views

How to connect multiple sensors to TXD and RXD pins of Raspberry Pi?

I want to connect multiple lidar distance sensors to my Raspberry Pi. (Like the picture below) The lidar distance measurement sensor has 5v, TXD, RXD and GND pins. When I looked, it seemed that the ...
-3
votes
1answer
24 views

How to decompile program into raspberry pi arm? [closed]

I would like to be able to read the assembly in a text format of some of the programs on raspberry pi. Thanks for any help you can give me.
1
vote
1answer
15 views

Fail to detect SPS30 sensor on Pi 3B I2C

I try to connect a Sensirion SPS30 Particle Sensor to my Raspberry Pi 3B via I2C. There are other sensors on the I2C Bus - and they work without any problems, but I fail to detect the SPS30. What I ...
0
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0answers
13 views

How to run python tkinter at start

I want to start my GUI app wrote in python with tkinter at start my Rpi, I set the start method in the rc.local like this: sudo bash -c 'python /home/pi/Desktop/appPython/good.py > /home/pi/...
0
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0answers
29 views

How can I transfer camera footage to my computer using Pico?

I am new to Pi and I am making a project which makes (live) video transfer from the camera to my computer display. Is this possible or not? Will it be possible with a Raspberry Pi Zero W? If yes, how ...
-1
votes
0answers
18 views

Creating a Pulsatile Pump with Raspberry Pi

so I was given a setup on an Arduino to transfer to a Pi with Ubuntu on it. I am pretty new to this, so please excuse any stupid ideas... so the current setup on the arduino is a 24V Pump (Comet 1395....
-1
votes
0answers
19 views

Where to buy pneumatic artificial muscles (PAMs) for RPi? [closed]

I started getting into robotics last christmas after getting a Pi as a gift. Over the past year I built a simple robotic arm that uses stepper motors. I now want to expand my portfolio by ...
0
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0answers
15 views

Powering a 1.5v alarm clock with a Raspberry Pi

How would I go about powering a regular alarm clock which uses a single AA battery using a Raspberry Pi? I'm playing around with interfacing the two, so I'd like to be able to connect the clock to the ...
0
votes
1answer
24 views

Is there a way to add SSH public keys to the SD card image before booting?

For headless initial configuration, it is possible to add WiFi login details by adding a wpa_supplicant.conf file to the image boot partition. Is it possible to add SSH public keys in a similar way? ...
0
votes
1answer
23 views

Cronjob does not work anymore after copying it

I recently reinstalled my Raspberry Pi after I changed the microSD-Card. I copied all my crons manually (in /var/spool/cron/crontabs/) and after I imported them with root on my new installation, they ...
0
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0answers
16 views

cannot connect to the internet after installing PiVPN

My ISP provide me a modem which provide a LAN port for a device to connect and obtain a public IP address. So I direct connect my raspberry pi to the modem without any router in between. Everything ...
0
votes
1answer
14 views

How can I get a Unicast Mac Address for a regular mac XX:XX:XX:XX:XX:XX?

I presume that the vendor supplied router is fairly old and hence this trouble. I want to set a static IP address for my media centre, though I have the regular MAC id, the router insists that I add a ...
1
vote
1answer
28 views

How would I go about to troubleshoot the ADS1115's inconsistent readings?

I have a ADS1115 breakout board from adafruit connected to my RPi 3B connected via I2C. It is powered via the RPi 3.3V pin. The A0 input to the ADC is connected to a sensor that will produce out-...
1
vote
0answers
19 views

Use WiFi as “local” hotspot and ethernet for Internet access

Using a Raspberry Pi 3, I would like to have a "wifi hotspot" (without internet connection) to connect my computer to it and use some applications (locally). From time to time, I would like ...
0
votes
0answers
20 views

Connect a Microphone to Raspberry Pi Pico ADC Pins

I’d like to try using my voice as an input to my Pico. I think I should be able to define a pair of one-word voice commands, and train a Tensor Flow Lite Micro for Pico model on them. What I can’t ...
0
votes
0answers
6 views

Wifi dongle TL-WN725N on RPi zero (Raspbian) on Waveshare Ethernet / USB HUB HAT doesn't work

The OS is Raspbian 32 bit not headless. The Wifi which I would have expected in the upper-right corner does not show up. I ran the following pi@raspberrypi:~ $ sudo wpa_supplicant -c/etc/...
0
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0answers
11 views

A fix for “No Sound” PluseAudio n Alsa with Pi Buster OS? [closed]

After the last up date, I battled to get pulseaudio working in conjunction with alsa, up and running. I viewed various posts, some were way over this newbies head. I had a barely functional, Buster OS....
0
votes
0answers
20 views

Playing Netflix on Ubuntu 20.10 Raspberry Pi4 8GB

Is there an easy way to get Netflix working on Raspberry 4 running Ubuntu 20.10 64bit? I have tried numerous ways including: https://github.com/monkaBlyat/docker-chromium-armhf But it fails on step: &...
-1
votes
0answers
23 views

how to install rpi-imager 1.6.1 on chromebook

i have tried everything but i keep getting this error at 2:44 of this explanation video https://www.youtube.com/watch?v=OTzWYNCp4M4&t=191s error installing linux application The following packages ...
0
votes
0answers
26 views

Gyroscope stops working

I am makeing drone with raspberry pi 2. I`am useing MPU6050 gyroscope and 4 2200kv motors with 30A drivers. When motors does not working gyroscope is working normal, but when I turn on motors ...
0
votes
1answer
22 views

How do I use the Pigpiod read function within a script

Im trying to use the read function from the pigpio library inside of a pigpiod script. Here is how: detect = pi.store_script('tag 1 inr p0 r4 jp 1 tag 2 r 4 jz 2 tag 3 inr p1 r 4 jp 3 jmp 1') My ...
0
votes
0answers
12 views

My CM4+CM4IO PCIE bus has vanished

My CM4+CM4IO PCIE bus isn’t visible via lspci and dmesg gives me a pcie no link message on boot. It was working.. Same on both Ubuntu 21.04 and Current RPIOS.. PCI device works ok on a different ...
0
votes
0answers
12 views

Bash code for UPS detection of re-introduction of external power to Raspberry Pi

I am currently working on an RPI based project and have incorporated a HAT based UPS to access when there is a loss of external power + graceful shutdown. External power loss will occur frequently. ...
0
votes
0answers
20 views

What installation route for an OS on Raspberry Pi 4 should I take? [closed]

I'm trying to set up my Raspberry Pi 4 as a hacking PC & a coding learning station. What is the best way to install the OS? I also want to use Virtual Studio Code as an editor to learn code as I ...
-1
votes
0answers
22 views

SSH works fine over WiFi, but creds don't work on wired LAN PBKaC [closed]

OK, wrong problem. My RPi3 has been connected fine (and still is...) over WiFi, but does not have a DHCP address on eth0 after I connect it to my router wired. Link lights are up...ifconfig shows: pi@...
0
votes
0answers
11 views

Raspberry Pi 4 not detecting Wireless headphones

Raspberry Pi 4 is not detecting my realme Buds Wireless Pro headphones I tried trouble shooting the issue by referring the following : https://peppe8o.com/fixed-connect-bluetooth-headphones-with-your-...
0
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0answers
11 views

pi zero portable mp3 player software

i am thinking about a project for which i could use some guidance. i want to build a flac/ high bitrate mp3 player with nice clicky buttons and rotary encoders. i have a raspberry pi zero, a dac hat ...

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