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smôl Power Board LiPo

SKU: SPX-18622 Brand: Sparkfun

Our RedBoards are great. But don't they sometimes seem a little BIG?! Enter smôl, a new range of boards which are both small in size and smal...

$30.80 AUD, inc GST

$28.00 AUD, exc GST

Available with a lead time
Expect dispatch between May 16 and May 19

Quantity Discounts:

10+ $26.88 (exc GST)
25+ $26.04 (exc GST)

Our RedBoards are great. But don't they sometimes seem a little BIG?!

Enter smôl, a new range of boards which are both small in size and small on current draw. It's a smôl world!

The smôl Power Board LiPo is an intelligent power board for the smôl ecosystem. You would expect this board to have an MCP73831 Li-Ion and Li-Polymer charger on it, and indeed it does. You would also expect this board to have a MAX17048 I²C fuel gauge on it, and indeed it does. But you probably wouldn't expect it to have an AVR ATtiny841 microcontroller on it. So why have Sparkfun included one?

This is an intelligent power board for smôl. The power board takes control of the 3.3V power for the whole smôl stack. The processor board can then instruct the power board to put the entire smôl stack into deep sleep for a pre-defined interval. Sleep intervals of 10's of milliseconds to several days are possible. In deep sleep, the only device left powered is the ATtiny841 and that reduces the current draw to 6µA. Yes, you read that right, 6 microamps! smôl makes it possible for your battery life to be measured in months not days! Sparkfun used the fantastic Otii Arc Power Analyzer to help us reduce the sleep current as much as possible.

Our smôl Power Board Arduino Library has examples to get you started.

smôl is an ecosystem of miniature processor boards, peripheral boards, power boards and accessories. Designed to be both physically small and to have the smallest possible current draw, smôl is the perfect choice for applications like wildlife tracking or discrete long-term monitoring. smôl boards are designed to stack one on top of the other, using 16-way 0.5mm-pitch Flexible Printed Circuits (FPCs) to provide the interconnect from one board to the next. Looking for a really compact solution for your next project? This is it!

We will be adding new smôl boards over the coming months. Don't see the board you need for your application? Reach out to us via the SparkX Forum and tell us which board(s) Sparkfun should add next!

Get started with the smôl Hookup Guide

Dig into the specifics with the smôl Power Board LiPo Hookup Guide

Experimental Product: SparkX products are rapidly produced to bring you the most cutting edge technology as it becomes available. These products are tested but come with no guarantees. Live technical support is not available for SparkX products. Head on over to our forum for support or to ask a question.

Li-Ion / Li-Polymer Charger:

MCP73831
- Charge current: 100mA (when USB power is connected)

Battery Fuel Gauge:

MAX17048

On-Board Microcontroller:

ATtiny841 8-bit AVR Microcontroller
- 8KBytes Flash
- 512Bytes EEPROM
- 512Bytes SRAM

Power Regulation:

smôl 3.3V:
- AP2112K-3.3V
- I_OUT (max): 600mA
- I_Q: 55µA
ATtiny841 3.3V:
- STLQ015-3.3V
- I_OUT (max): 150mA
- I_Q: 1.4µA

Sleep Current Draw:

6µA (with ATtiny841 in Power-Down Mode) (measured by Otii Arc)

smôl Specifics:

Interface: I²C
- ATtiny841 Default Address: 0x50
- MAX17048 Fuel Gauge Address: 0x36
PROC_PWR_EN:
- The power board pulls PROC_PWR_EN low to disable the regulator on the processor board

Properties:

Length: 1.60" (40.6mm)
Width: 0.42" (10.7mm)
Height: 0.29" (7.4mm) max.
Weight: 1.4g (0.05oz)
PCB thickness: 0.8mm

Documents

smôl Power Board LiPo Documentation:

Li-Ion / Li-Polymer Charger:

Datasheet (MCP73831)

Battery Fuel Gauge:

Datasheet (MAX17048)

Microcontroller:

Datasheet (ATtiny841)

smôl Documentation:

smôl Hookup Guide

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We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

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$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

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