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Topic: Multiple Flow Meters ~ Total Dispensed per meter (Read 1 time) previous topic - next topic

MarkT

They sound like little hall effect sensors but I can't understand why they wouldn't have some sort of display already. These devices work well with the interrupt facilities on Arduino.

You may get a useful start here

http://www.freetronics.com.au/pages/jaycar-water-flow-gauge

"Approx 7" is a bit loose. If you really mean six, you are in luck, as Mega has that many interrupt pins. If you really mean eight, I guess you can piggyback a Pro Mini to get the extra pins. I don't think you need to cycle the display or push any buttons. A single 4x20 LCD will probably do it all.
You are forgetting the pin change interrupts. ports B, J and K produce pin change interrupts so you can
use pins 10..15, 50..53 and A8..A15 as well as 2,3,18..21
[ I will NOT respond to personal messages, I WILL delete them, use the forum please ]

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