WIFI Module Affects USB Connection with Tinker 3S

[sonyan11 0]

Hello,

I use Tinker 3S with latest Tinker OS.
I connected a high-power USB 3 camera module (800 mA).
At the same time, my Tinker board is periodically accessed over Wi-Fi by a web client (it runs a web server).

When I cut the power to the Wi-Fi router, the USB camera capture suddenly starts failing in bursts. This is reproducible.
If I disable Wi-Fi power saving mode (see attached code), the problem disappears.

echo "options 8822ce rtw_power_mgnt=0 rtw_ips_mode=0 rtw_lps_level=0 rtw_low_power=0" \ | sudo tee /etc/modprobe.d/8822ce.conf

 

However, I would like to avoid disabling power saving mode if possible.

What do you think is happening here?

[tooz 55]

hello @sonyan11, 

apologies for the late reply, the usb 3.0 has 2.4ghz signal that might disrupt, please try using wi-fi 5ghz and see if the problem persists

[sonyan11 0]

Dear @tooz,

 

I deeply appreciate for your support.

We have confirmed that the impact is reduced when using 5GHz. When using 2.4GHz, is it possible to mitigate the impact through driver tweaks or similar measures? Or would hardware modifications (antenna positions) be necessary?
Best regards，
 

Edited October 9, 2025 by sonyan11

[TzuWen_Chang 2]

Hi,

Here are a few ways to reduce radio frequency interference (RFI):

1. Disable USB 3.0. In your case, you can directly use a USB 2.0 port to connect the camera.
2. Improve signal shielding. Try adding metal shielding (grounded) between the Wi-Fi network card and the motherboard.
3. Switch to a USB Wi-Fi card and use a USB extension cable to move the USB Wi-Fi card away from the USB 3.0 port.

[sonyan11 0]

@TzuWen_Chang
Hello. Thank you so much for your kind advice.

I will try.

Best regards,