Hello. I create device which must automatic switch to off. It's work with LiPo battery – work fine, but at out I get 3.3v, the battery is ok and get 4.1v. Scheme in attach. If any one
know why it's lost voltage, please help. Thanks!
know why it's lost voltage, please help. Thanks!
No resistor in series with the LED.
it’s example scheme… in real, resistor, of course, is there.
I don’t think that trouble in resistor )
A link to technical information on the part would be a big help. If you designed the part a schematic is needed.
Hi,
The COB device might be a 3V3 device?
The spec for the module says 2.0V to 5V operation, so it must have a buck/boost circuit.
Can you please post image(s) of your project?
So we can see your component layout.
Thanks.. Tom... 
Post the real schematic, if you want real answers to your question.
Thanks for answer. Sorry right now I can not create the scheme, but the project: is to connect esp32 with auto switch off and the scheme is the same as in topic start, instead of led - esp32.
Come back to the forum only when you can post some useful information.
as you can saw, I answer for TomGeorge questions, for him it, maybe useful. than not for you )
Hi, @juffin
I hope you are not expecting the 005 to power the ESP32, you should have the 005 controlling a MOSFET to switch the ESP32.
Thanks.. Tom..
hm… no… can you help, what mosfet need to use?
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