Smallest controlable led light

[ricb007]

Hi experts.
Can you point me to the smallest WiFi or Bluetooth controlable, multi colour LED light.
I need 10, and they need to fit discreetly within the size of a 5 pence peice.
Thanks

 

[danadak]

https://www.renesas.com/us/en/document/dst/da14531-module-datasheet?r=1601921

Google "TINY BLUETOOTH LED MODULE"


Regards, Dana.

 

[Pommie]

How are you going to power them?

Mike.

 

[Nigel Goodwin]

How are you going to power them?

Mike.

Tape it to the side of a couple of D cells

 

[ricb007]

D cell battery looks to big. Is there smaller that is rechargeable

 

[danadak]

LiPo or Coin cells come in some quite small sizes.

Battery Equivalents, Replacements and Cross Reference Charts

Shop for battery equivalents and replacements; check Cross-Reference Charts of button/coin cell batteries, cylindrical batteries, automotive batteries, and more...

www.batteryequivalents.com

https://www.varta-ag.com/fileadmin/varta/industry/downloads/products/lithium-ion-cells/CoinPower_Folder_en_geschuetzt.pdf

Regards, Dana.

 

[Nigel Goodwin]

D cell battery looks to big. Is there smaller that is rechargeable

That was sarcasm, hence the smiley

Your size requirements seem rather restrictive though, how long are you hoping the batteries will last?.

 

[ricb007]

4 or 5 hours??? Maybe..

 

[Nigel Goodwin]

I'm dubious you could fit what you want in the size of a five pence piece anyway, never mind a battery as well - a multicoloured LED (like the WS2812) is 5mm square on it's own, and a 5p is only 18mm diameter.

 

[danadak]

A sandwich of a coin cell, and a BLE part, and led (RGB). BLE modules down to 3 x 9 mm,
RGB leds to < 1 mm square , coin cells 5 mm to 25 mm diameter, your design doable I would think.


Regards, Dana.

 

[Jeembo]

I'm dubious you could fit what you want in the size of a five pence piece anyway, never mind a battery as well - a multicoloured LED (like the WS2812) is 5mm square on it's own, and a 5p is only 18mm diameter.

OP actually made me curious on his project It's not everyday you need to fit like 10 LEDs within such small surface area

 

[ricb007]

Ohh. The mystery. What am I Creating. Am I the next Elon Musk.
I only need 1 controlable led and 1 battery in each 5pence size.

 

[ricb007]

And I need 10 of them.

 

[rjenkinsgb]

Is it just the diameter of a five pence piece, or the thickness as well?

 

[ricb007]

As thin as possible.
As thin as 5p would be perfect but the thinner the better.

 

[rjenkinsgb]

And, what does the battery life need to be? An active Bluetooth device, that can be connected to to send commands, takes power!

 

[Tony Stewart]

Your requirements are either : under-powered or under-sized or both.
Please come back with better design specs. Your request is surreal.

 

[ricb007]

I can't say to much but I just want to get info on the smallest controlable led and rechargeable battery available.
It would be similar to modern head phones. Individual chargeable units but with a multi coloured led to illuminate clear plastic.

 

[ChrisP58]

I can't say to much but I just want to get info on the smallest controlable led and rechargeable battery available.
It would be similar to modern head phones. Individual chargeable units but with a multi coloured led to illuminate clear plastic.

Just make sure that whatever you choose is indeed rechargeable. Most small lithium coin cells are not.

 

[danadak]

This might help in decision of battery selection :

Regards, Dana.