Suggestion on dev board for new Arduino project

Me next project calls for a ‘thing’-sized micro controller with built-in single-cell LiPo charging, while having the lowest overall power consumption (excluding current draw while charging). Included in that consideration would be any power savings easily achievable through standby or sleep states. The ESP8266 and ESP32 ‘Thing’ boards, as well as all the ‘Thing Plus’ variations, all seem like candidates. However I’m still trying to understand which of these has the greatest ‘low power’ potential in my scenario.

I do not need wifi or bluetooth for this application, so if I use a board with either I will be disabling those features to save power. I will only be driving a few LEDs with pwm, and using two push buttons as my only inputs.

Could you make a suggestion as to which board will allow me to most easily achieve my lowest possible power consumption while providing the features I need? Thank you very much!

Hello ironhalo.

You might have a look at the [Artemis Nano. That’s the smallest, low power board we carry that has a battery charger built in. The ‘Blink’ example sketch only needs 3mA of current to run but with the right code, you get the Artemis to consume even less power.](https://www.sparkfun.com/products/15443)

Thanks a lot for the quick suggestion. The Artemis Nano looks perfect, much appreciated. Ordering one now.

Can you point me to any resources on learning to code a ‘deep sleep’ or ‘standby’ mode on this board? Ideally I would be able to get the power consumption to the micro-amp level when the device is idle.

You might have a look [at this thread for some example code. :-)](https://forum.sparkfun.com/viewtopic.php?f=169&t=50904)