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gitaroktato / espweather

An ESP8266 (Node MCU) -based open-source weather station.
MIT License
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Use an LDO regulator for lower deep sleep power consumption #15

Open oresztesz-margaritisz-epam opened 4 months ago

oresztesz-margaritisz-epam commented 4 months ago

See: https://randomnerdtutorials.com/esp8266-voltage-regulator-lipo-and-li-ion-batteries/

gitaroktato commented 2 months ago

Interesting experiments:

https://www.youtube.com/watch?v=IYuYTfO6iOs https://www.youtube.com/watch?v=I3lJWcRSlUA

gitaroktato commented 2 months ago

Check the datasheet for using the internal LDO - AMS1117-3.3 http://www.advanced-monolithic.com/pdf/ds1117.pdf

Check the external datasheet for LD1117V33 https://www.sparkfun.com/datasheets/Components/LD1117V33.pdf

type dropout voltage quiescent current
LD1117V33 1 - 1.1 5 mA
AMS1117-3.3 1.1 5 mA
HT7333 0.15 0.004 mA
XC6206 0.16 0.001 mA

Compare with LDOs here: https://arduinodiy.wordpress.com/2020/01/18/very-deepsleep-and-energy-saving-on-esp8266/