Hello,
I would like to use a flow meter sensor with a arduino.
I would like to use this one:
At 30L/min, it should have 243 pulse/min in output.
Which board should I buy for this?
Thanks.
If you just want to do what you say you want to do, a plain old Uno or Nano will be fine. The trouble with Arduino projects is that they are inclined to grow and run out of memory. If you get into datalogging, with recording, local display etc., you are better off with a Mega or perhaps a NodeMCU, both of which are better endowed.
OP linked to a flow sensor with a minimum supply voltage of 5volt.
Much easier to use a standard 5volt Arduino for that (Uno/Nano/Mega), not a 3.3volt NodeMCU.
Leo..