StereoPi Forum

Does a long time to load considered as a bug? On my current connection (24Mbps down / 30ms ping to stereopi.com), it takes 39s on mobile phone before being able to start to read (4-5 seconds on PC). I have not read the article yet. Hmmm... I'll look at images size, as a lot of them are high-res. AN...

OpenCV: comparing the speed of C++ and Python code on the Raspberry Pi for stereo vision

We're moving our blog from Medium to the stereopi.com If you find some bugs (images, broken links etc. - please, let us know).

Hi everyone, I have a project with a stereopi hooked up to a LAN network in my open plan office, all working great :). The only problem is that our network administrators require me to set a password on stereopi.local to keep it connected to the network.. Any ideas on easy ways to achieve this? Tha...

Hi Pascalfust, Actually you can get one image with the full resolution for both sensors. For V1 (5Mpix) you'll get 10 Mpix photo. We use this, for example, in our SLP image for taking a photo. In my article "The art of stereoscopic photo, Part 2" you can find section "Now let’s check how the ‘Camera...

Hi Eddie, I'm glad you have some success here! I think we'll add AP support in our next SLP release for advanced users, to simplify all that settings. As for your /run/hostapd.conf question - this is a temporary directory used for the boot process. You can save your config file in another place (lik...

Hi Chansec,
As I understand you've tried all possible troubleshooting approaches, so no need to add some more tests. I've wrote you direct email (to the email address you used for registering on this forum) to discuss replacement details. Please answer.

Hi Michael93, Actually this is not my tutorial, I just found this code at GitHub. :-) I have several notices here: 1. Actually, raspividyuv has not stereoscopic support. It was added several months ago, and to add it to your Raspbian you need to do sudo rpi-update 2. 250 FPS is too fast for the ster...

Hi 3D-holgi, You can sync a couple of StereoPi's by GPIO, this is the easiest way. Ideal way is to use external "timer" like Arduino, which sends two signals by GPIO to both StereoPi, and they did a photo. I mentioned this approach in a one of our updates here . Another way is to use one StereoPi as...

Well, I did some experiments, but no luck at this moment, as my dongle has no AP support. Will try to find appropriate one and repeat this. I had tried to run hostapd manually. May be this can help in your case, as your dongle supports AP. - stop all LAN_run options (comment it in a scriot) - I did ...

Stereomaton thank you!
Bchamp, do not forget to unlock a filesystem before changes! Also we have MC installed in SLP, so you can use it if you like.

Hi Bchamp, For the recordings we use a script "loop-record.sh", which is sitting here: /opt/StereoPi/scripts/loop-record.sh The second row in this file contains a path for recordings: RECPATH=/media/DCIM So you can make automount of your USB flash dongle, and put a path to your recordings folder in ...

Ok, I see. I send you email (to the address you've used for registering on this forum) concerning replacement board delivery, please reply.

Geraldol wrote: ↑

Mon Jan 13, 2020 11:51 am

Is it even possible to accomplish close to zero audio latency?

WIth the video we can have 120-150ms latency with the 3 Mbit bitrate. Bandwidth needed for audio is 50-100 times smaller, so theoretically we can have a tiny latency. It depends on software and settings.

directive0, please try the last test: swap the camera with the ribbons (but not only camera modules). We need to check, if it is a camera or a ribbon issue. You see, camera connection schematic is a very simple (I mentioned this schematics fragment in this post ). It means, that all cameras pins are...

Hmmm, I was unable to find sources of libarducam_mipicamera.so I just found a notice here , that they are based on https://github.com/6by9/raspiraw/ (native RPi camera application). But I don't think it is a good idea for you to write your own driver from scratch. According to mentioned comment in p...

FKED, I'm not a guru in a sound part, but for reducing a latency I'd look into buffers details and real-time system priority features. For example, at the bottom of this page you can find some notices on low-latency. This notice concerns both buffer size and priority (--sced flag), able to dramatica...

Hi Eddie and Stereomaton, To say briefly, I'm not recommend to do direct connection. It is better to use external device like router, or you can use your phone as access point to connect both Oculus and StereoPi to phone's access point. Why it is not a good idea to run access point (according to our...

Delgoodie, I think you're one step away from the result. You need to look inside Arducam driver. I have no your Arducam cameras, so can not make this part by myself. But I can suggest, that there are two ways: 1. Modify Arducam driver and functions to work with the second camera, and use it together...

Hi Cmazzoli,
Actually SLP has buitl-in feature for RTSP livestream, and you can use it for livestreaming to youtube. The procedure is very simple, so we did not created separate article for this, but added a quick manual here in our Wiki:
Livestream to YouTube, StereoPi Wiki

Hello Duncan, Sorry for my late reply! I still has no Nano here to play with, but found some information. Here at NVidia developers forum you can find an example of capturing raw H264 stream: https://devtalk.nvidia.com/default/topic/1055506/jetson-nano-accelerated-gstreamer-using-opencv/ The first r...