Search found 3 matches

by marble33
Thu Dec 06, 2018 3:38 am
Forum: Technical Discussion
Topic: Standby consumption
Replies: 16
Views: 1030

Re: Standby consumption

Thanks for your answer What kind of high efficient SMPS you use and have you replace the regulator of the M7 camera with it ? I found that there is no pull resistor on OV7725 PWDN pin. I see 500uA by adding 4.7K Ohm pull up on OV7725 PWDN ( PCB pattern is covered. so need to scratch off printed ink...
by marble33
Tue Dec 04, 2018 12:34 pm
Forum: Technical Discussion
Topic: Standby consumption
Replies: 16
Views: 1030

Re: Standby consumption

I found that there is no pull resistor on OV7725 PWDN pin. I see 500uA by adding 4.7K Ohm pull up on OV7725 PWDN ( PCB pattern is covered. so need to scratch off printed ink ) If i replace LDO regulator to high efficient SMPS. I see 10uA with RTC on by calling machine.deepsleep() What a great MCU S...
by marble33
Tue Dec 04, 2018 6:28 am
Forum: Technical Discussion
Topic: Standby consumption
Replies: 16
Views: 1030

Re: Standby consumption

I found that there is no pull resistor on OV7725 PWDN pin. I see 500uA by adding 4.7K Ohm pull up on OV7725 PWDN ( PCB pattern is covered. so need to scratch off printed ink ) If i replace LDO regulator to high efficient SMPS. I see 10uA with RTC on by calling machine.deepsleep() What a great MCU ST...

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