Hello guys ,
I am a beginner user regarding arduino , my skill mainly deals with uavs . Anyways, I have a project I want to start developing but it's outside my skill level at this point and could use some advice from senior developers.
What I need to do is measure airflow , once the air starts flowing I need it to do a calibration ( activated by holding a button down for x secs ) . I need it to store its value until a new cycle is manually activate ( holding Cali button again.)
Once it gets its first Intial reading I need it to monitor the airflow until it gets to a new set point which would be half the value of the Intial reading . Once it sees the new value it needs to state reset on a lcd screen.
Does this seem feasible ? Do you think a flow meter would be better suited or pressure sensors ?
What form does this airflow take? Is it a 25mm pipe or a 5 mtr air duct? Are you wanting to measure airflow volume or speed?
Please give more detail of the mechanics of the project.
The basic requirements of the program are possible.
Weedpharma
Hi,
What is your application, pressure measurement means pitot tubes, flow meter for air usually means a vane type sensor.
Each has it advatages and disadvantages.
Tom... 
Probably cfm but the units I'm not to concern with as long as the result for the trigger are half the value of the set point.
Air is flowing through a duct , when the air becomes restricted by some obstructions over time I want to be able to monitored it.
Or let's say on first calibration air is flowing at 100% , 2 weeks later it's at 50% , 4 weeks later it displays 25% life remaining, etc.
I just don't know if it can produce a somewhat linear result ? The accuracy isn't a huge factor as I would like to see it with in 10-15%
weedpharma:
What form does this airflow take? Is it a 25mm pipe or a 5 mtr air duct? Are you wanting to measure airflow volume or speed?
Please give more detail of the mechanics of the project.
The basic requirements of the program are possible.
Weedpharma