Powering Nano 33 BLE Sense with LiPo

Hi,

I've researched a bit the options I have to power my wearable project based on the Nano 33BLE Sense.

I really would like to use LiPos for their size and shape especially.
I know I can't power it up directly from the LiPo (too high for 3.3, and too low for 4.5-21), so I'm looking for options.

I've found that : Nano 33 LiPo Adapter nano9jira which is EXACTLY what I would need, but can't find anywhere to buy it !
Do I need to "build" it myself ?

I've also found the Pimoroni LiPo SHIM which is designed for the RPi familly but seems to be what I'm looking for right ?

I've tried to research other battery solutions but they all are way too big for my project (2xAAA size is already too big)

Thanks for any of your comments/tips/suggestions.

Best regards!

Would a 3V coin cell like a CR2032 work for your use case? Thats what companies like Garmin use for their sensors.

Actually I need to drive a 7 neopixel 'jewel' ring so i guess I will need the 5vols anyways... and a reasonable battery as well.

I just ordered the nano9jira pcb. I uploaded the gerber files to a pcb manufacturer's website and am having 5 shipped to me by next week.

Not sure if you still need one, but considering I have 4 extras I'd be happy to sell one to you to cover shipping and the cost of the board.

I'll be using mine in a DIY bicycle power meter project. If you want to stay tuned and follow my journey using this custom pcb maybe it will help you. I update my blog daily here:

I think the more important discussion is "Why did they use the MPM3610 when the MPM3810 would have enabled people to use LiPo batteries?".

The more I use the Arduino Nano BLE the more I wonder if the people who designed it put any thought into how it was supposed to be used.

drewvigne:
I just ordered the nano9jira pcb. I uploaded the gerber files to a pcb manufacturer’s website and am having 5 shipped to me by next week.

Not sure if you still need one, but considering I have 4 extras I’d be happy to sell one to you to cover shipping and the cost of the board.

I’ll be using mine in a DIY bicycle power meter project. If you want to stay tuned and follow my journey using this custom pcb maybe it will help you. I update my blog daily here:

https://www.flipsnack.com/drewvigne/bicycle-power-meter-version-1/full-view.html

Mate that would be amazing !!!
Totally keen to get one or two indeed !

I’m based in france, will pay for the shipping !

Let me know

nuhash:
I think the more important discussion is "Why did they use the MPM3610 when the MPM3810 would have enabled people to use LiPo batteries?".

The more I use the Arduino Nano BLE the more I wonder if the people who designed it put any thought into how it was supposed to be used.

I indeed don't understand why, but I'm only amateur and can only see my usage of it, maybe I just don't fit in :slight_smile:

baramuse,

pm me and we can work out the details. I will be getting them in the mail within the next few days :smiley:

Hi, I am from Köln, Germany. I am interested in the same board as well!! Do you still have extras? Or maybe can you tell me about the manufacturer itself. That would be of great help. Thanks!

I have since abandoned this project in favor of the Adafruit LiPo Backpack for ItsyBitsy. With a slight modification this can be used with the Arduino Nano 33 BLE.

The custom pcb is another feasible option. But it is a real headache to solder such tiny resistors. I highly advise going with the backpack instead.