timestamp,rainfall_rf1,rainfall_rf2,water_level,solar_voltage,battery_voltage
2026-03-12 10:00:00,0.2,0.0,25.0,12.4,12.6
2026-03-12 10:05:00,0.4,0.2,26.0,12.6,12.7
2026-03-12 10:10:00,0.6,0.4,27.0,13.0,12.8