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ESP Low Power Sensor and Battery status

6 years 8 months ago - 6 years 5 months ago #219 by cdj
Hi again,
can i make Arduino low power sensor with arduino NANO 5v or i need Arduino Pro Mini 3.3?
If i cant (i've ordered 10 nano some weeks ago) i can use a 4pack AA battery.
Do you think that this battery can support ESP, arduino and for ex. BMP180? for days, months, or years ? (just to have an idea).

And , about BATTERY STATUS, how it works? i've seen it in my sensor... but how we can do it in esp sensors ?

Thanks a lot

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6 years 8 months ago - 6 years 8 months ago #269 by EasyIoT
I don't know NANO, because I'm using only pro mini. If you read ESP datasheet you will see that current consumption is quite big for battery. Right now EasyIoT library doesn't support power save mode. You can try to connect one Arduino pin to ESP and try to put in sleep mode.

Battery status will be implemented in next release of EasyIoT library.

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6 years 8 months ago - 6 years 5 months ago #270 by cdj
Wait wait...ok for battery status, i wait it ! :)

but don't understand exactely if easyiot library doesn't support power save what can i do... i suppose nothing !

Is it a good idea to try how many time stay an arduino nano with ESP8266 and bmp180 with 4 AA battery ? or its useless because can stay on just some days ?
I've seen in serial monitor that when esp is idle easyiot ping all time....

Dario


EDIT : Ok i've tested, a 9v battery goes down after just 1 day !!! Definitively closed !

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