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15 votes

Sending Raspberry Pi Camera preview to a laptop running VNC Viewer

See @Andrew Wedgbury 's comment to the accepted answer. " It is now possible to do this over VNC. If you're using the RealVNC server on the Pi, go to VNC options > troubleshooting and enable "...
thestevenbell's user avatar
14 votes

Raspberry Pi 3 has less than 1GB memory available at OS level

If the output of vcgencmd get_mem arm && vcgencmd get_mem gpu is arm=880M gpu=128M This means that GPU is using 128M. This can be verified/changed in raspi-config Advanced Options, although ...
Milliways's user avatar
  • 60.7k
12 votes

What causes ENOSPC error when using the Raspberry Pi camera module?

"In normal circumstances there is NEVER a need to run rpi-update as it always gets you to the leading edge firmware and kernel and because that may be a testing version it could leave your RPi ...
user49119's user avatar
  • 129
11 votes

RasPi Camera Board and Motion

to load the model after each reboot, use this setting sudo nano /etc/modules enter bcm2835-v4l2 exist and save the fle sudo reboot
jefwu's user avatar
  • 111
10 votes
Accepted

Raspberry Pi 3 has less than 1GB memory available at OS level

First of all, I give my best regards to @Milliways for suggesting to check 2 simple commands. vcgencmd get_mem arm && vcgencmd get_mem gpu Where is the missing 128MB memory? Even if both ...
vaha's user avatar
  • 1,260
8 votes

Modern way to stream H.264 from the Raspberry Cam

I'm amazed there isn't more action on this thread, I've been chasing down the answer to this question for months. I stream from a Pi Camera (CSI) to a Janus server, and I found the best pipeline is ...
Ben Olayinka's user avatar
8 votes

Can the Pi camera module be used with a longer cable?

The length limits come from two requirements: signal quality, and signal delays. A 1m cable will introduce about 5ns of delay (speed of light in circuits is a lower than in vacuum!), so if you are ...
JayEye's user avatar
  • 1,908
8 votes
Accepted

Cannot connect to PiCamera when using it with Flask

I struggled for some time with this exact same problem. I believe that I've solved it, though I have to be honest, I don't understand exactly why it works. The key was turning off debugging in Flask. ...
Nick's user avatar
  • 96
7 votes
Accepted

Raspistill slow to trigger?

You need to have the camera process running all the time. This is the only way I could acheive results of (on average) 50ms. I looked everywhere for a solution. 1 second was just too slow for my ...
Entryton's user avatar
  • 106
7 votes

How can I enable the camera without using raspi-config?

raspi-config seems to support noninteractive mode: you can use nonint command to set the camera # raspi-config nonint do_camera %d # %d - Integer input - 0 is in general success / yes / selected, 1 ...
Pankaj's user avatar
  • 171
7 votes
Accepted

Camera gets hot, how much power should it dissipate?

According to the Specs The official documentation doesn't actually contain a power spec. https://www.raspberrypi.org/documentation/hardware/camera/README.md The FAQ's do offer some guidance: https://...
Kelton Temby's user avatar
7 votes

Camera module not getting detected

I would double check that the camera is correctly connected at both ends and not loose, and that it is enabled via the RPI config menu. The RPi+ camera draws about 260 mA more current than the board ...
Robotbugs's user avatar
  • 261
6 votes

Using other camera modules to build custom webcams

Iphone camera modules use MIPI CSI-2 interface. MIPI CSI-2 cameras could be interfaced using USB camera controller chip. Such chips are widely used in webcameras, notebook cameras, IP cameras and some ...
Georgy Moshkin's user avatar
6 votes
Accepted

How can I install raspistill/raspicam on a distro that doesn't include them?

raspistill or raspivid. How can I install these? They're distributed pre-compiled (armv6, which will work with any distro that runs on any model) via the Raspberry Pi Foundation's github site, in ...
goldilocks's user avatar
  • 59.4k
6 votes
Accepted

Raspberry Pi 3 Mounting on Wood

Should I be concerned about any particular type of wood when working with electronics? Not really. As long as it is dry, you keep some clearance between the wood and Pi, and you do not completely ...
Ghanima's user avatar
  • 15.9k
6 votes
Accepted

Is it necessary to release Raspberry Pi Camera before rebooting? If so how do I do it?

There is NO NEED to do anything before a reboot. If you issue a sudo reboot command Linux will manage an orderly shutdown of the software. This is, however, a poor way of ensuring a reliable 24/7 ...
Milliways's user avatar
  • 60.7k
5 votes

Motion filming can't get on real speed

Check out this thread: https://www.raspberrypi.org/forums/viewtopic.php?t=75240 With the updated binary you can get 15FPS on the live stream. If you set output_pictures ON, you can collect up to 15 ...
Dan's user avatar
  • 51
5 votes

Can the RPi Camera cable be folded/creased?

All flex cables have a minimum bend radius, under which a specified number of fold-unfold cycles is guaranteed. This radius depends on the brand, but generally it's around 5-10 mm. Here's a spec for ...
Dmitry Grigoryev's user avatar
5 votes

How do you configure the Pi Zero to act as a USB webcam using the plug in camera?

I have this enumerating and streaming synthetic uncompressed data to FaceTime via my Raspberry Pi Zero W. The ConfigFS example in the kernel gadget documentation works for the most part. It has some ...
jdonald's user avatar
  • 2,922
5 votes
Accepted

How do you configure the Pi Zero to act as a USB webcam using the plug in camera?

After searching a lot I finally have this working now to get it working I used the following script for the configfs setup https://gist.github.com/kbingham/c39c4cc7c20882a104c08df5206e2f9f and this ...
Raatje's user avatar
  • 174
5 votes

Camera not turning on with Raspberry Pi 3B

If connected correctly, the camera LED does not turn on immediately. Please make sure: To connect the camera to the right slot near the LAN port (with soldering side of the flat cable pointing away ...
mrkskwsnck's user avatar
5 votes
Accepted

PiCamera updating hflip and vflip more than once

The value you're passing to set_vflip is a str. You can tell this because if you attempt your print statement at the command line with a literal bool it fails: $ python3 Python 3.5.2 (default, Nov 17 ...
Dave Jones's user avatar
  • 3,978
5 votes

How to synchronize images from two raspberry pis

You've said, "I'm not an expert with Linux systems or the Raspberry Pi, so please thoroughly explain your solution." Fair enough, but if by a "thorough explanation" you expect to avoid any further ...
Seamus's user avatar
  • 22.4k
5 votes

Can Raspberry Pi NOIR Camera see near infrared light (~1550nm)?

The silicon bandgap is about 1 eV. That means a photon with wavelengths more than ~1000 nm do not have the energy to generate a charge. https://www.spiedigitallibrary.org/conference-proceedings-of-...
Moged's user avatar
  • 51
5 votes

Can Raspberry Pi NOIR Camera see near infrared light (~1550nm)?

I just measured spectral response of a raspberry pi NoIR camera module using 2inch integrating sphere and monochromator. The first spectrum I did just using NoIR camera module, the second one with a ...
Anton's user avatar
  • 51
4 votes

What causes ENOSPC error when using the Raspberry Pi camera module?

I've tried with last RASPBIAN STRETCH LITE (9.4 - 2018-06-27) in a PI3B v1.2 with a PI CAMERA 2.1, all fully upgraded (apt-get upgrade) If this command doesn't detect the camera with "detected=1&...
Albert Garcia's user avatar
4 votes
Accepted

Can the RPi Camera cable be folded/creased?

We often get this sort of question at picademy when people want to use a camera module with something like an Explorer HAT (which doesn't have a hole for the camera's ribbon cable, so it winds up ...
Dave Jones's user avatar
  • 3,978
4 votes
Accepted

How do I install Open cv easily onto my raspberry pi? and so that it works?

To easily install OpenCV so that it works. sudo apt-get update sudo apt-get install python-opencv The rest is down to reading and understanding the documentation so perhaps add sudo apt-get ...
joan's user avatar
  • 71.3k
4 votes
Accepted

How can I save the video recording from the camera module to an USB drive?

You need to create a directory for and mount the filesystem on the USB drive. mkdir /mnt/usb mount /dev/sdb1 /mnt/usb Then you can specify the directory of where the USB drive is now mounted in the ...
Hydranix's user avatar
  • 226
4 votes

Raspberry Pi Camera Not Showing Preview Onto Touch Screen

I don't think this works as intended. At least, the docs for the Python picamera library state that: The camera’s preview system directly overlays the Pi’s output on the HDMI or composite video ...
goobering's user avatar
  • 10.7k

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