esp-mqtt-dht icon indicating copy to clipboard operation
esp-mqtt-dht copied to clipboard

Published 20 hours ago • verified publisher icon corbanmailloux

ESP and DHT from battery

Open lewicki-pk opened this issue 7 years ago • 1 comments

Have you tried using a battery to power this device?

I'm wondering if this would work.. Also I wonder how long can this last if e.g. powered from common AA battery.

lewicki-pk avatar Mar 18 '17 20:03 lewicki-pk

I haven't tried running them from a battery because I'm just using standard USB phone chargers to run them. I haven't put in any optimizations for battery life. In theory, the ESP supports various levels of sleep. Because the sensor only has to report in occasionally (I do 30 seconds, but multiple minutes also would work), the ESP could be sleeping the vast majority of the time.

I believe there are other ESP projects that have focused on battery life.

corbanmailloux avatar Mar 18 '17 20:03 corbanmailloux