Arduino + power led

Projects Programming
1

Hi Guys,

I have an arduino nano v3.
The power led is too flashy to me (very bright blue) and is also probably consuming useless energy out my battery (9v).
Any way to reduce intensity or to shut it down?

Thanks,
Erwan

2

Any way to reduce intensity or to shut it down?

Not in the Arduino code, itself. It's strictly a hardware device.

A piece of electrical tape will reduce the (observed) intensity.

is also probably consuming useless energy out my battery (9v).

Useless is appropriate in that sentence, but you need to move it in front of battery, not energy.

3

PaulS:

Any way to reduce intensity or to shut it down?

Not in the Arduino code, itself. It's strictly a hardware device.

A piece of electrical tape will reduce the (observed) intensity.

is also probably consuming useless energy out my battery (9v).

Useless is appropriate in that sentence, but you need to move it in front of battery, not energy.

Ok, thanks for the answer. i'll stop my mad googling to find some code then !
Piece of tape : did not think about that :slight_smile: sometimes, solutions are just simple easy.

4

erwanl:
Hi Guys,

I have an arduino nano v3.
The power led is too flashy to me (very bright blue) and is also probably consuming useless energy out my battery (9v).
Any way to reduce intensity
Difficult, because it uses a smd resistor to set it's current flow value, which are hard to replace for many hobbyist. If you could change the resistor to a higher ohm value the current and thus brightness would be less.
or to shut it down?

Yes, you might be able to unsolder it from the board if you have good hand tools, a good soldering iron and a steady hand. But again SMD mounted components can be difficult to rework.
Lefty

Thanks,
Erwan