Low Battery LED Indicator Board [OSHPark]

Completed sale threads will be moved here to keep things tidy in the main For Sale forum.
User avatar
Helder
Trailblazer
Trailblazer
Posts: 2985
Joined: Thu May 05, 2016 8:33 am
Location: Rogers, AR
Has thanked: 1459 times
Been thanked: 3114 times

Re: Low Battery LED Indicator Board [OSHPark]

Post by Helder » Sun Oct 16, 2016 11:02 am

lpepe wrote:
Helder wrote:Looks alright to me, is your battery charged? do you have a multimeter to show how much voltage it has? Also try a pot like in the first schematic I posted and mess with the values to see when it lights up at the battery voltage when it's low and take the measurements with a multimeter of the POT to get the resistor values.

Of course, it's charged. With potmeter didn't tried yet, I didn't ordered one....

I used a 18650 li-ion battery, but I think this isn't the problem? (the battery is brand new Samsung cell...)
You're multimeter shows it's a negative voltage so maybe you have the battery backwards? hence why the light is always on.
Chat with me and other members On Discord

Don't contact me about obtaining my board files (as you will not get them). If my Boards or PCB Kits are sold out, they will be restocked as soon as I can get them and there is demand for them. You can join the mailing list on my Website to be notified when they are available.


Helder's Game Tech Website

We will not support any cloned work so don't come to us with technical issues to resolve, go talk to the cloner for help.

lpepe
Posts: 4
Joined: Wed Oct 12, 2016 1:45 pm

Re: Low Battery LED Indicator Board [OSHPark]

Post by lpepe » Sun Oct 16, 2016 11:07 am

Helder wrote:
lpepe wrote:
Helder wrote:Looks alright to me, is your battery charged? do you have a multimeter to show how much voltage it has? Also try a pot like in the first schematic I posted and mess with the values to see when it lights up at the battery voltage when it's low and take the measurements with a multimeter of the POT to get the resistor values.

Of course, it's charged. With potmeter didn't tried yet, I didn't ordered one....

I used a 18650 li-ion battery, but I think this isn't the problem? (the battery is brand new Samsung cell...)
You're multimeter shows it's a negative voltage so maybe you have the battery backwards? hence why the light is always on.
No, just the multimeter plugs were inverted in-plugged.
The red wire from the battery is + and the black is -.

Purple_Moogle_00
Posts: 13
Joined: Mon Nov 21, 2016 11:59 am
Has thanked: 7 times

Re: Low Battery LED Indicator Board [OSHPark]

Post by Purple_Moogle_00 » Fri Nov 25, 2016 6:35 pm

I'm not at all good with all this calculating resistors and such, but if one could clarify that would be great. It's set up like this correct?
20161125_203428.jpg
20161125_203428.jpg (4.39 MiB) Viewed 11553 times

User avatar
Helder
Trailblazer
Trailblazer
Posts: 2985
Joined: Thu May 05, 2016 8:33 am
Location: Rogers, AR
Has thanked: 1459 times
Been thanked: 3114 times

Re: Low Battery LED Indicator Board [OSHPark]

Post by Helder » Sun Nov 27, 2016 2:02 pm

Purple_Moogle_00 wrote:I'm not at all good with all this calculating resistors and such, but if one could clarify that would be great. It's set up like this correct?20161125_203428.jpg
I have another board on the first post that shows the resistor values so no idea what you're talking about and it should be wired like this:

Image
Chat with me and other members On Discord

Don't contact me about obtaining my board files (as you will not get them). If my Boards or PCB Kits are sold out, they will be restocked as soon as I can get them and there is demand for them. You can join the mailing list on my Website to be notified when they are available.


Helder's Game Tech Website

We will not support any cloned work so don't come to us with technical issues to resolve, go talk to the cloner for help.

User avatar
Marty33
Posts: 145
Joined: Wed Feb 22, 2017 4:55 pm
Has thanked: 19 times
Been thanked: 13 times

Re: Low Battery LED Indicator Board [OSHPark]

Post by Marty33 » Mon May 29, 2017 9:17 am

Hello @Helder.

After working on my project, i broke the Red led on my Powerboost 1000C.

Your Low Battery LED Indicator is always a solution ?

I can use your solution and place it between the battery and Powerboost ?

Big thanks

megamax510
Posts: 31
Joined: Mon Jun 26, 2017 10:54 am
Been thanked: 5 times

Re: Low Battery LED Indicator Board [OSHPark]

Post by megamax510 » Mon Jun 26, 2017 11:56 am

helder great!

User avatar
Merlin
Posts: 60
Joined: Thu Feb 22, 2018 12:32 pm
Has thanked: 44 times
Been thanked: 28 times

Re: Low Battery LED Indicator Board [OSHPark]

Post by Merlin » Thu Feb 22, 2018 1:06 pm

Simply awesome!
Can you share the schematic of the "solid values" version?

djvoodoo
Posts: 4
Joined: Tue Apr 10, 2018 8:42 am
Has thanked: 1 time

Re: Low Battery LED Indicator Board [OSHPark]

Post by djvoodoo » Mon May 14, 2018 12:55 pm

Stupid question. Do I have to put 2 transistors in the parts indicated q1 and q2?

NasiNoot
Posts: 1
Joined: Sun Jan 27, 2019 1:51 am

Re: Low Battery LED Indicator Board [OSHPark]

Post by NasiNoot » Tue Apr 02, 2019 10:44 am

so i have bought this cheap psu for my gbz build:
https://aliexpress.com/item/Top-Deals-3 ... Title=true
i don't know for sure if it has support for leds, does anyone know?
if not, would this board work?

User avatar
Helder
Trailblazer
Trailblazer
Posts: 2985
Joined: Thu May 05, 2016 8:33 am
Location: Rogers, AR
Has thanked: 1459 times
Been thanked: 3114 times

Re: Low Battery LED Indicator Board [OSHPark]

Post by Helder » Tue Apr 02, 2019 12:14 pm

NasiNoot wrote:
Tue Apr 02, 2019 10:44 am
so i have bought this cheap psu for my gbz build:
https://aliexpress.com/item/Top-Deals-3 ... Title=true
i don't know for sure if it has support for leds, does anyone know?
if not, would this board work?
Necro Bump to post something not even related to this thread :roll:

It's the generic PSU mentioned in the wiki and it also has the LED locations you can solder them on yourself to have charging status and low battery indication.
Chat with me and other members On Discord

Don't contact me about obtaining my board files (as you will not get them). If my Boards or PCB Kits are sold out, they will be restocked as soon as I can get them and there is demand for them. You can join the mailing list on my Website to be notified when they are available.


Helder's Game Tech Website

We will not support any cloned work so don't come to us with technical issues to resolve, go talk to the cloner for help.

Post Reply

Who is online

Users browsing this forum: No registered users and 1 guest