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1500 questions
8
votes
1 answer
Different image quality from picamera capture to numpy array and path
The quality of capture from Pi Camera varies when captured to numpy array and when captured directly to a path. The former has more pinkish tint to it than the later.
Why is that.?
The code I used for capturing the images:
from picamera import…
x.projekt
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8
votes
3 answers
Boot Zero W from USB device
The older Raspberry Pi's (Pi 1, Pi 2 and Pi Zero) couldn't boot from a USB-device, but the Raspberry Pi 3 has support for it. The Pi and Pi 2 have semi-support for it (using an SD-card with a single bootfile). The Pi Zero W is a remake of their…
Max
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8
votes
2 answers
Avahi seems to stop publishing/refreshing services after a while
Firstable, I looked up to several Q/A, i can ensure that the following points are fullfiled:
IGMP snooping isn't filtered by switch/router.
Bonjour services (mDNSResponder.exe) is granted and allowed on the firewall as well as UDP port 5353…
mdns
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8
votes
2 answers
Time drift with Windows IoT core
The Problem I have 4 Raspberry Pis running on my local network. All 4 Raspberry Pis are posting messages every 5 seconds to an Azure IoT hub.
The problem is that when time drifts off, I'm getting authentication errors from the IoT hub and then my…
Scott Routley
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8
votes
4 answers
How to turn off the CSI, and turn it back on again
I am using the Waveshare RPi Camera (F), which comes with two IR LED boards to enable nightvision (they look like two big eyes on either side of the camera 'nose' - at least that's what it looks like to me).
Both of these LEDs get very hot. …
Deleuze
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8
votes
3 answers
Does Raspberry Pi Zero have a polyfuse?
The question says it all. If you have a definite answer, it would be great if you could post a photo of the pi zero, where the fuse is pointed out.
Stowoda
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8
votes
1 answer
Raspberry Pi 3 Smartphone LCD
Recently I was trying to connect RPI3 to a smartphone LCD which supporting MIPI DSI interface. I choose Huawei Y320 LCD (800x480) because of its documents availability and of course the price,
This is the related LCD connector schematics:
2…
Mohammad Farahi
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8
votes
3 answers
Raspberry Pi 3 without screen, but with smartphone
I want to make a cool Raspberry Pi thing that will be put in people's cars. What it does is not important, but somehow people must be able to interact with it.
The ideal solution would be that users on the phone simply used Bluetooth to find the…
frodeborli
- 191
- 3
8
votes
1 answer
Chromium tab crashes if mp4 video with GPU acceleration
I maintain a distro that runs chromium called FullePageOS.
I added gpu acceleration, but now mp4 video crashes the chromium tab when its viewed (mpeg works).
How can I fix this?
Alternatively how do I figure out exactly what is causing chromium to…
GuySoft
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8
votes
3 answers
Are there any expansion boards available for the GPIO?
Are there any expansion boards available for the Raspberry Pi for use with the GPIO?
FarhadA
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8
votes
7 answers
Is it possible to host a website on the Pi3 with 1GB ram?
Recently read this article: http://www.makeuseof.com/tag/host-website-raspberry-pi/ where the possibility of hosting a website on a Pi is discussed. But I'm not sure if it's capable of hosting what I want exactly. I have a website I'm in the process…
J.Doe
- 181
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8
votes
3 answers
Chrony doesn't sync time with gpsd
I have a Raspberry Pi that will be used for logging sensor data while not connected to the internet. Since the Raspberry Pi doesn't have an RTC, and to still get the actual time, I want to use a GPS receiver for the time. I would like to use gpsd…
Frank Kusters
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8
votes
2 answers
How do I change screen resolution in Pixel?
I am using Raspbian Jessie, with my Raspberry Pi 2 and a 52" TV. I just updated.
Now, after loading the Pixel my screen size is about 32" and the resolution is lousy. I looked around in the Pixel interface but I cannot find where to adjust the…
j0h
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8
votes
3 answers
Can't access shared libraries when running with sudo
I'm trying to get a demo working writing PCM to the I2S; I've created a small demo program that gives an error when I run with the following command ./demo stereo_small.wav
can't open /dev/mem
So I run with the this command sudo ./demo…
Dog Ears
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8
votes
2 answers
Pi 3 cannot connect to Enterprise WiFi using GUI
Raspberry Pi 3 Model B running Raspbian "Jessie with PIXEL" (Release 2016-09-23).
It appears that all the WiFi networks that requires authentication other than a PSK are grayed out in the menu.
What is the reason behind this? Not supported by driver…
Radium Zheng
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