![]() The breakout module also contains other components you need in order to make the IC work. ![]() INA219 (datasheet) is an IC which supports such measurement and can communicate via I2C bus. But a simple device which would be able to measure voltage and current in regular intervals and store the agregated result over time (energy) would do the job, wouldn’t it? Building blocks of Power measurement device I do not have any tools that would help me with such a task. ![]() It’s also not practical to compare overall battery life since it’s measured in weeks. But how to test this? How to compare different configurations and solutions in order to choose the best one? Well, you cannot just compare momentary current consumption since it changes a lot when the device activates after sleep when it communicates via WIFI etc. But there are many possible combinations and some quirks and therefore a lot of experimentation is required. The micro-controller has several sleep-modes and other functions that are supposed to help with energy consumption. ![]()
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