Power consumption measurement

A project log for OpenHAP

An opensource DIY tool to help combat "household air pollution"-which kills more people globally than HIV/AIDS and malaria combined.

aloismbuturaaloismbutura 09/01/2019 at 13:200 Comments

Defining the data acquisition cycle

Sample recordings of this data within a  CSV file is as below:

The power consumption of a data acquisition cycle can be seen below.

Power consumption profile(Single data acquisition cycle)

To power profile I used the current ranger with the ground lead replaced with a low noise prong. The data was recorded on an oscilloscope and exported as a CSV for further analysis. 

Average power consumption: 61.46mA

Suggested power consumption improvements - Next iteration

It is noted that the deep sleep phase of the data acquisition phase is around 40 mA. The reason for this may be due to the following factors.

Power profiling setup