A3. Arduino current meter Build a current meter that monitors the power on a line using an arduino and a sensor like this. https://docs.rs-online.com/01d5/0900766b81544f27.pdf The measure is done by sampling an AC channel where the meter is connected. We want to hold: -The statistics of the last hour (1 value per min) -The statistics of the last day (1 value per hour) -The statistics of the last month days (30 values) -The statistics of the last year months (12 values)
The system should implement a simple interface that allows for
- setting the "on-line" mode when it writes a sample each x seconds on the serial
- clearing the statistics
- querying the statistics