hello, i was wondering if anyone has been use a DigiLed to show the remaining % of the battery.
I mean, i use a battery of 9V to supply the energy to my arduino but i wanna show the % remaining
idk how start.
Your topic was MOVED to its current location as it is more suitable.
What made you think that it was an Introductory Tutorial ?
Oh, sorry that's completely my bad, i'm new on the forum so i don't know where i have to publish something like that
9 volt battery? Is it a PP3 fire alarm battery? If so, not worth thinking about measuring it. Use better power supplies.
A fixed value of 10% would probably be as good as any! 
First step is to get the TM1637 display working. Why do you want to use a battery anyway? There would need to be a really good reason. 
I wonder whether the displays presently being sold still have the incorrect capacitor values on CLK and DIO? See if you can get it working and if not, we can figure out which capacitors need to be removed.
Powering a controller and a display from that poor battery is wasting energy. How long does it last in Your application?
Or a message telling, at start up, "Bring the next battery."
i'm not really sure, because im usin a A6 Module and a GPS and my plan it's connect everything to the arduino and then just supply with the battery of 9v, my teacher tellme then i have to put something to indicate the % left of the battery.
I'm really sorry for my english, it's not my native lenguaje so i try to express in the most correct way, acording to my capacity to understand and write in english
yeah something like that, or a number or anything, because it's something necessary according my teacher.
i just need express in someway the % left of the battery.
im new with arduino so idk how to really config the display.
6 AA batteries would make sense but not a PP3.
Use Google. There are tons of topics about reading battery voltage like You want to do.
Telling the remaining capacity is hard, or impossible. Then You would need the technical data about the battery. Don't ever think they are all the same.
There's a number of TM1637 libraries that can be found in the IDE's Library Manager. If you install the one by, say, Avishay Orpaz you can visit the github repo to find an example of how to use it.
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