ESP8266 Community Forum

- Wed Oct 24, 2018 3:28 pm #78851 Hi,

there are a lot of guides on how tos save power with a NodeMCU v1.0. I happen to have v0.9 lying around. I have no issues with them so I'd like to use them for a battery powered project.

Any ideas or instructions on how to achieve a minimal power consumption with those boards or maybe don't they need any mods?

Thanks!

- Thu Oct 25, 2018 3:59 am #78861 A NodeMCU is a development board, made for convenience, not efficiency.
The NodeMCU has more peripherals on-board than just the ESP: it also includes a USB to serial convertor that also draws (a lot of) power.

If your goal is to create something that is battery powered, you use the NodeMCU to develop your hard- and software and then pour that into a design of your own using a bare ESP-12 module accompanied by only the necessary components.
Even the on-board blue LED on the ESP-12 module uses power, so to efficiently use every drop of juice in your battery, you would want to remove that LED as well.

Assumption is the mother of all f*ckups. At least: that's what I'm assuming.

- Thu Oct 25, 2018 5:59 am #78866 Thank you.

I will use then the ESP8266 directly