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This tag is for questions regarding powering and/or power consumption of Arduino systems.

1 vote
2 answers
3k views

Arduino nano getting powered through analog input?

However when I disconnect the battery from the usb plug and leave the voltage sensing cable connected to the analog input the power led stays on. … I want it to shut down and be disconnected from the power source and have the voltage sensing cable still connected. How can I fix this? …
qwertz's user avatar
  • 251
2 votes
3 answers
11k views

Use Arduino to detect low battery state and shut it down

When the battery is full enough again it should power up again. Is that possible without any external sensors just by using the Arduino's inputs? …
qwertz's user avatar
  • 251
6 votes
1 answer
3k views

Low Power library messing up serial text

I noticed something unusual using the Low Power library today. … Replacing the low power command with delay(1000); works fine …
qwertz's user avatar
  • 251
2 votes
1 answer
956 views

Choose the correct solar panel and battery for solar use

I am planning to build a weather station powered by solar power. I want to use an Arduino Nano because it's low power requirement. … I don't want it to go out of power and want it to last a couple of days without sun. …
qwertz's user avatar
  • 251