Query to get last moisture measurement about the pot in the right group, left position, first floor
from(bucket: "greenhouse_test")
|> range(start: -30d)
|> filter(fn: (r) => r["_measurement"] == "ast:pot")
|> filter(fn: (r) => r["_field"] == "moisture")
|> filter(fn: (r) => r["group_position"] == "right")
|> filter(fn: (r) => r["pot_position"] == "left")
|> filter(fn: (r) => r["shelf_floor"] == "1")
|> keep(columns: ["_value"])
|> last()Asset test data in line protocol format to load into InfluxDB for testing
The timestamp is set to (DD/MM/YYYY): 19/05/2023 10:00:00 GMT+0200 (Central European Summer Time)
Note: the timestamp precision used here is seconds. When uploading from influxDB dashboard you need to change the precision to seconds
ast:pot,shelf_floor=1,group_position=left,pot_position=left,plant_id=1 moisture=60.0 1684483200
ast:pot,shelf_floor=1,group_position=left,pot_position=right,plant_id=2 moisture=20.0 1684483200
ast:pot,shelf_floor=2,group_position=left,pot_position=left,plant_id=3 moisture=60.0 1684483200
ast:pot,shelf_floor=2,group_position=left,pot_position=right,plant_id=4 moisture=20.0 1684483200
ast:shelf,shelf_floor=1 humidity=15.0,temperature=23.0 1684483200
ast:shelf,shelf_floor=2 humidity=10.0,temperature=19.0 1684483200
ast:greenhouse light=80.0 1684483200
ast:pump,shelf_floor=1,group_position=left pumped_water=15.0 1684483200
ast:pump,shelf_floor=2,group_position=left pumped_water=15.0 1684483200
ast:plant,plant_id=1 ndvi=-0.4 1684483200
ast:plant,plant_id=2 ndvi=0.2 1684483200
st:plant,plant_id=3 ndvi=-0.4 1684483200
ast:plant,plant_id=4 ndvi=0.2 1684483200