flow-monitor

To set up sqlite database

sqlite3 flow-monitor.db

CREATE TABLE flow_data (
  id integer PRIMARY KEY,
  gal_totalizer_value float,
  bbl_totalizer_value float,
  last_measured_timestamp integer
);

INSERT INTO flow_data (id, gal_totalizer_value, bbl_totalizer_value, last_measured_timestamp) VALUES (1, 0.0, 0.0, 0);

To reset the sqlite database

sqlite3 flow-monitor.db

UPDATE flow_data SET gal_totalizer_value=0.0, bbl_totalizer_value=0.0, last_measured_timestamp=0 WHERE id=1;