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Visitor II
July 5, 2025
Solved

Best practices for controlling exposure time of VD55G1 in Linux

  • July 5, 2025
  • 1 reply
  • 236 views

What are the best practices for controlling the exposure time of the VD55G1 in Linux?

Best answer by Jean_Poire

Hello @JohannH,

The best practices for controlling the exposure time on Linux depends on the platform.

You can use tools such as v4l2-ctl to set the exposure mode to manual/automatic and choose the exposure you want. The maximum exposure available is already computed to fit with the frame length you selected and to avoid any timing issue. 

You just need to be aware that some software stack such as libcamera with rpi might overwrite your controls. You need then to properly set your exposure controls at the libcamera level.

 

Best regards.

Jean

1 reply

Jean_PoireBest answer
ST Employee
July 10, 2025

Hello @JohannH,

The best practices for controlling the exposure time on Linux depends on the platform.

You can use tools such as v4l2-ctl to set the exposure mode to manual/automatic and choose the exposure you want. The maximum exposure available is already computed to fit with the frame length you selected and to avoid any timing issue. 

You just need to be aware that some software stack such as libcamera with rpi might overwrite your controls. You need then to properly set your exposure controls at the libcamera level.

 

Best regards.

Jean