December 24, 2023, 09:53
MQTT brocker
I'm unable to install MQTT broker on my RP4,
I used sudo apt -y install mosquitto, didn't work
December 24, 2023, 09:51
Pi3b dead?
Hi all thanks in advance for looking at this post and any help you can provide!
I have an RPI3b that I've been using as a pihole- booting off an usb drive. I noticed yesterday the pihole was down so I powered off the pi and examined the flash drive it reported that it was in read only mode (there is no hardware switch on this drive) so given past experiences I've come to the conclusion since its not a software lock the flash must be erroring and the drive's controller decided the lock out any writes to preserve the data on the drive.
So I thought if I got another new usb drive and flashed it with the official rasberry pi imager I could start again. unfortunately after imaging the new drive the pi will not boot into raspbian it will just sit at blinking cursor on a black screen. I already checked the 3v3 power pin on the gpio and its still reads ~3.3v.
I'm a bit mystified as how to proceed any help would be appreciated!
December 24, 2023, 09:51
Need help with PIO for SPI ROM chip reads
Background -- I recently discovered https://github.com/stacksmashing/pico-serprog and since I have a ton of picos and no rom programmers I thought I'd give it ago, except flashrom doesn't detect it as a programmer. Then I discovered the fork https://codeberg.org/libreboot/pico-serprog except that it doesn't implement all commands. So today I forked it: https://github.com/opensensor/pico-serprog and implemented remaining commands.
I think started refactoring the primary rom read command S_CMD_O_SPIOP -- seems to be the problem is related to flashrom reading the entire 16 MB rom I can read from the chip as long as I read a subset that can fit into pico memory and send it one go -- as soon as I chunk the payload the communications with flashrom break.
I've started trying to implement pio spi in a branch, but I am kind of confused. It compiles, but no data is received for the large chunks, meaning the new pio code I added isn't quite right: https://github.com/opensensor/pico-serprog/pull/1/files
December 22, 2023, 19:53
Raspberry Pi 3 Camera module not working anymore on bullseye (used to work on buster)
Hello,
Is someone aware of an issue targeting this model of camera ? An article seems to indicate a compatibility issue but it sounds strange https://core-electronics.com.au/guides/raspberry-pi-bullseye-camera-commands/
How can I diagnose this compability issue ?
I have:
% libcamera-hello libEGL warning: DRI2: failed to authenticate Made X/EGL preview window [0:01:57.813732765] [1621] INFO Camera camera_manager.cpp:297 libcamera v0.0.5+83-bde9b04f ERROR: no cameras availablePlus
dmesg |grep -i imx dmesg |grep -i cameraDoesn't return anything.
December 22, 2023, 19:20
DHT11 on Rust: Timeout Error
I've been trying to use a DHT11 temperature sensor with rppal. My code is the following:
rust
fn main() {
let mut pin = Gpio::new().unwrap().get(18).unwrap().into_io(Mode::Output);
let mut led = Gpio::new().unwrap().get(17).unwrap().into_output();
let mut sensor = Dht11::new(pin);
for _ in 0..10 {
led.set_high();
let measurement = sensor.perform_measurement(&mut Delay::new());
println!("{:?}", measurement);
led.set_low();
sleep(Duration::from_secs(1));
}
}
but measurement keeps being set to Err(Timeout). I have tried using different IO modes and using different libraries too. This crate is dht11, but I have also tried dht-sensor and simple-dht11, to no avail. I also haven't managed to get a measurement with a different language, Python kept crashing in the venv because it couldn't detect the environment.
I connected the VCC to the 3.3V supply, the ground to GND and the data line to GPIO 18. I'm pretty confident it's correctly connected cause I have an LED on my DHT11 that lights up, but I cannot make any measurements whatsoever.
December 22, 2023, 17:42
not booting; flashing error code
i bought a "raspberry pi model b+ v1.2" from ebay, and on attempting to boot it seems to be flashing an error code that i haven't been able to identify by googling. i've attached a video; it looks like three short flashes, one long flash, two short dim flashes, and one long flash. even if that's just a three-short-one-long that's consistently repeating poorly for some reason, that combination didn't seem to be listed. does anyone know what this means?
December 22, 2023, 17:33
Is it possible to make Raspberry Pi 5 portable?
So, I have a Raspberry 5 8gb RAM I am getting in 2 days for Christmas. I was wondering something.(This is a question for people who already own the product by the way.) Is there some way so far that we can make the Raspberry Pi 5 portable? Has anyone done it so far? Is anyone planning on doing it? If so what would I need to buy, gather, or pre-order? Is it even possible? If it’s possible what would be the minimum mAh I would need in a Lithium Ion Battery)
December 22, 2023, 11:10
[SOLVED] rpi connected to network but can’t be reached
Hi,
I have my RPI on my local network with a local IP, I can ping 8.8.8.8 from the pi but can’t ping the pi from other devices. The pi is running nginx and moonraker for 3d printing. What could be the issue?
December 22, 2023, 07:32
on screen keybored not working fixed
i install it like alot of videos say how to doit but mine dont like likes there and dont work like a on screen keybored
December 22, 2023, 06:17
LED breaks code?
So i have the code below, and it is giving out errors, which are below, i don't know what to do sorry i am new, it is suppost to be like the csgo bomb, it all worked before i tried to implement the LED and it is the right pin i know that, so is anyone able to help
Code: https://paste.pythondiscord.com/PSKA
December 22, 2023, 00:56
can raspberry pi cam v2 give video output of fullhd (1920x1080) to octoprint?
title.
if yes, do i just change the camera resolution after i ssh into my pi? cause when i tried changing it to that res, it all laged and had to do fresh install. but lower resolution worked.
December 21, 2023, 23:34
pip install packages beginner help
I’m having these errors while trying to pip install ws281x led packages.
December 21, 2023, 20:02
Pi400 hotspot issues
Trying to setup pi400 as access point. using bookworm and no hostapd. Trying to see if somebody has done this recently and can give me some pointers.
December 21, 2023, 20:01
Pi 3 B+ : 100Mbps instead of 1Gbps
Hi,
I'm new to Raspberry and just got a second hand 3B+.
I checked Raspberry Pi website, and 3B+ should come with a Gigabit Ethernet Adapter (although it's locked to 300Mbps because is going through USB).
On my Pi3B+, the adapter is shown as a Fast Ethernet Adapter, thus allowing only 100Mbps.
I tried this on Debian12, Raspbian Bullseye, Ubuntu 23.10, and have the same thing.
Also, on the switch, it shows 1Gbps connectivity ...
Any idea ?
Regards,
December 21, 2023, 19:59
Can't SSH pc to raspberry
in that case it's ziggo
December 21, 2023, 14:56
Pi 5 with sound
Hi, so I'm planning to build a cyberdeck with a Pi 5, and I'm planning to use laptop speakers from a broken laptop I have, and realised I would need an audio amp. I was wondering which of these would be a better pick:
The one with a blue heatsink is a TPA3110 with 8-26V DC, 30W+30W 2.0 amp XH-A232. The red PCB one is a DollaTek 10W+10W 2 Channel 12V DC module. Since the Pi 5 doesn't have an audio jack anymore, I would need to use a USB adaptor to get the audio cable or use GPIO pins. I don't plan to have access to the rotating volume control so I feel like the space on it is gonna be wasted.
I'm planning to power the build off a power bank. I know 30W is going to be better for sound but I'm also conscious of power spend. Not to mention that looking at power banks they seem to be capped below 30W so I'm not sure if getting 30W capability would be even worth it.
Here's two power banks I've been looking at:
Lower wattage, less outputs, less capability but name brand - https://www.amazon.co.uk/Anker-Portable-PowerCore-High-Speed-Charging/dp/B0BYP4Y1N8/
More wattage more capacity more outputs but haven't heard of the brand before - https://www.amazon.co.uk/VEGER-30000mAh-Charging-Portable-Compatible/dp/B0C4DWD4XY/
To be specific the laptop speakers I'm utilising are QT-7326AW-1-W and these are the links to the boards:
Dollatek - https://www.amazon.co.uk/DollaTek-Electronic-Assembled-Amplifier-Portable/dp/B07DJ4NJXR/
TPA3110 - https://www.amazon.co.uk/Amplifier-TPA3110-XH%E2%80%91A232-Computers-Electronic/dp/B093ZK99B8
December 21, 2023, 12:45
RPI 3 B+ Not working. Only red light.
I powered my RPI 3 B+ with a Fast Wall Charger, Model: Q5003-US, Input: AC 100-240V.50/50Hz.0.5A Max, Output: DC 3.6-6V=3A, 6-9V=2A, 9-12V=1.5A
I did some research and the RPI only needs 5V,2.5A... So, I think I fried it. But if that was the case, then why is the red light still working?
I re-flashed the micro-sd, nothing. I used another micro-sd, nothing. I went back the the 5V,2A head and nothing works.
December 21, 2023, 11:40
I'm trying to change the gpu memory on my rp5 8GB.
added :
root@raspberrypi:/boot# cat config.txt | grep mem gpu_mem=256 gpu_mem_256=64 gpu_mem_512=128 gpu_mem_1024=256 and after rebooting multiple times I never get the memory to change : root@raspberrypi:/boot# vcgencmd get_mem arm && vcgencmd get_mem gpu arm=1020M gpu=4M
December 21, 2023, 08:10
no module named picamera error
I recently formatted my raspberry pi 4 using the official website imager to 32 bit os
I face these errors when trying to run my code
I have already tried:
1. going into raspi-config (there's no option to enable camera, even inside the interface option)
2. update and full upgrade
3. pip install picamera
What should I do?
December 21, 2023, 03:04
I need help, no audio out??
I can't get my pi to output audio, and there's weird errors, I'm not good with these kind of things
December 21, 2023, 00:36
Terminate code mid way through with a button press
Hi all, I have the following code (hopefully this is formatted correctly in discord)
import time
import board
import digitalio
import usb_hid
import sys
from adafruit_hid.keyboard import Keyboard
from adafruit_hid.keycode import Keycode
btn1_pin = (board.GP16)
btn2_pin = (board.GP15)
# Set up the button
btn1 = digitalio.DigitalInOut(btn1_pin)
btn1.direction = digitalio.Direction.INPUT
btn1.pull = digitalio.Pull.DOWN
btn2 = digitalio.DigitalInOut(btn2_pin)
btn2.direction = digitalio.Direction.INPUT
btn2.pull = digitalio.Pull.DOWN
keyboard = Keyboard(usb_hid.devices)
while True:
if btn1.value:
keyboard.send(Keycode.A)
time.sleep(01)
keyboard.send(Keycode.A)
time.sleep(01)
keyboard.send(Keycode.A)
time.sleep(01)
keyboard.send(Keycode.A)
time.sleep(01)
keyboard.send(Keycode.A)
time.sleep(01)
keyboard.send(Keycode.A)
time.sleep(01)
keyboard.send(Keycode.A)
time.sleep(01)
keyboard.send(Keycode.A)
time.sleep(01)
if btn2.value:
keyboard.releaseall()
(Eventually the A keycodes will be swapped for scroll down arrow commands to I can scroll up and down a page) What I'm finding impossible to do is to stop the code mid way though with the press of btn2. is there a way to do this?
thanks.
December 20, 2023, 18:42
trying to let my 1x8 and 4x8 segement turn fully on
the segements both have some parts on but not all
December 20, 2023, 15:59
15-30 second delayed "Live" Video playback
Hey all, just wondering if this would be possible. I have never used a raspberry pi properly before and have 0 knowledge on them or their capabilities just for a bit of information.
I need a way to take a live video feed from a camera or webcam, and play it back with a 15-30 second delay on an external monitor, this would need to be able to run with no internet connection and be robust enough to run for 6 hours per day, 7 days a week, 365 days a year. I'm UK based if that is of any help or hinderance. Thank you all in advance
December 20, 2023, 12:23
Solid red light on pi
Hey all, my pi 4b with ubuntu server 32 bit installed on it has a solid red light on and about 3 minutes ago it was flashing green every 0.5 seconds
December 20, 2023, 00:41
Raspberry Pi camera object detection
i'm trying to setup the camera using a github repository and its not functioning well as a beginner i need help please
December 19, 2023, 21:53
PiCamera2/Ffmpeg "Thread message queue blocking"
I'm still learning and doing my best to study...
December 19, 2023, 20:03
please help me for joystick
guys in the gpio of a rpi 0 w2 WHERE FK is the VRX, VRY and SW
December 19, 2023, 12:54
Wrong password
Hey all, i've been trying to login to my pi (I installed ubuntu server on it), i have an ethernet cable going into it and it seems to only be still red, no green light I have tried sshing into it with username and password ubuntu and it says incorrect
Right now I am re flashing it
December 19, 2023, 11:23
Rpi-rf 433mhz receiver transmitter
Hello guys, have you ever tried to communicate with the 433mhz receiver and transmitter via raspberrypi 4? It seems that the receiver is not receiving the signals. I tried the same application with Arduino and it actually worked.
Any ideas why I can't receive the signals?
I use python3 rpi-rf package for this.
The wiring between the pi and the transceiver is fine, I doubled check it.
December 19, 2023, 10:17
Help Code CSGO bomb
an the pins and equipment i just need python code bc i am still figureing out how to code python for this
