Low power sensor node follow up.

I finally achieved a target run time (estimated) of a year on a couple of AAA batteries for the NRF24L01 and the STM32F030. The current flow is mostly zero but once a second the MCU wakes up and transmits a message leading to a current waveform like this:
The best estimate I can come up with for the average current flow puts it below 100uA which should allow very long run times off a pair of AAA batteries.
Code, circuits, results and further discussion is here

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s