ShutDown Mini 5MP Plus Ardu Cam to Save Power-Lowest power draw possible

Published by c172jeff on

Home Forums Arducam SPI Cameras ShutDown Mini 5MP Plus Ardu Cam to Save Power-Lowest power draw possible

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    • #23480
      c172jeff
      Participant

      Hi,

      I have an Arducam Mini Module Camera Shield 5MP Plus OV5642 Camera Module.

      I wish to switch off as much power to the camera as possible for a low power application state.  I plan to sleep the Arduino.  When I later restart, I can reprogram any settings taht were lost.  I want to reduce the mah consumed to the lowest possible.

       

      How is this done.  I saw some references to

      #define GPIO_PWDN_MASK                                       0x02  //0 = Sensor normal operation,      1 = Sensor standby

      #define GPIO_PWREN_MASK                                     0x04       //0 = Sensor LDO disable,                                             1 = sensor LDO enable

       

      But cannot get the camera to consume less power than about 45 mah or so.  I thought the camera could be set to consume 20 mah in a powerdown state.

      How is this done?

       

      My problem is that I cannot get the Arducam to burn less power than about 45 mah or so.  What regs must I program and is there something else to switch off besides what the lines…

       

      myCAM.set_bit(ARDUCHIP_GPIO,GPIO_PWDN_MASK);

      //myCAM.clear_bit(ARDUCHIP_GPIO,GPIO_PWREN_MASK);

      delay(10000); //wait a second to allow the led to be turned off before going to sleep

       

      in my code.

       

      All I want this script do is reduce camera power consumption as much as possible.  The above lines lower to 45 mah or so. I want more reduction.

       

      Thanks,

      Jeff

    • #23483
      Arducam jyh
      Moderator

      Hi,

      Using myCAM.set_bit(ARDUCHIP_GPIO,GPIO_PWDN_MASK),You can only put the camera into low power mode, but the CPLD is still working, so there is always a high current.

      If you want to fully control the power consumption of the camera, I think you can control the VCC of the camera directly with a switch and re-initialize it when the camera is woken up to minimize the power consumption.

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