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I am developing a video streaming device that streams video to youtube. For this, I am using NanoPi NEO Core2 as an SBC. It runs on "Base on UbuntuCore, Kernel: Linux-4.14" os version as mentioned on http://wiki.friendlyarm.com/wiki/index.php/NanoPi_NEO_Core2

Along with the SBC, I am using its shield to use peripheral ports like USB, ethernet, and debugging port. For capturing video, I am using a Logitech c920 webcam.

Here I am facing two issues :

  1. Hardware Issue When I connect Logitech C920 camera with NanoPi Neo Core2 via mini shield, it freezes. I am unable to understand whether it is due to the power issue, or is it due to driver issues.

  2. Network Issue I am using TP-LINK USB WIFI dongle ( TL- WN725N ) to connect to the high-speed internet. TPLINK dongle on its package, claims it can provide 150mps network speed. However, I am getting 5 to 8 Mbps, provided I have a 25 Mbps upload and download speed plan.

It also loses network connectivity frequently, which causes inconsistent video streaming. When I make a ping request to the SBC from a second computer within the same network, it gives loss -10-12% pings request.

Ethernet is also giving the same kind of result. I am using NMCLI as a network manager. So is it because of nmcli or some other component creating an issue? Please guide me in the case; I am doing anything wrong for connecting to the internet.
Does anyone experience the same kind of issue related to internet connectivity?

Mini shield: http://wiki.friendlyarm.com/wiki/index.php/Mini_Shield_for_NanoPi_NEO_Core/Core2 TP-link: https://static.tp-link.com/2018/201810/20181022/TL-WN725N(EU&US)_3.0_datasheet.pdf Logitech c 920 camera: https://www.logitech.com/en-in/product/hd-pro-webcam-c920

Shubham Bahl
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1 Answers1

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From experience, lots of problems with SBCs are caused by the power supply. Possibly yours is not powerful enough. I assume you've not done overclocking (if such an option exists).

Here are some of the things I would try otherwise:

  • use a powered USB hub rather than connect the peripherals to the USB ports on the shield.
  • plug your peripherals one by one and see what happens
  • leave dmesg -w running in a terminal window and look at the messages that show up when you plug a device
  • inspect your log files eg syslog, they may contain some warnings or errors pertaining to your problem

If you are not sure whether this is a software (driver-related) or a hardware problem one thing you can do is prepare another SD card and try another distribution for your platform. I think you have at least three available from the maker: one based on Ubuntu, another based on Debian, and also one based on OpenWRT.

On NanoPi SBCs I also use Armbian which is ported to your model (Link), so it's another option for you.

Kate
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