need a water flow sensor example

kg300 · Post by **kg300** » Fri Mar 06, 2020 7:33 am

Any flowcode exemple of using this sensor? Actually i want to use this sensor to measure total flow pass in liters/minut and display on lcd. And i need starting point by a flowcode example

Post by **medelec35** » Fri Mar 06, 2020 8:53 am

That should be fairly easy to sort out.
Do you have hardware details in mind, e.g. Microcontroller (freq, internal/External osc.), LCD etc?
Perhaps would be better if you started the flowchart by setting up configuration settings and adding LCD.

kg300 · Post by **kg300** » Sat Mar 07, 2020 10:03 am

medelec35 wrote:That should be fairly easy to sort out.
Do you have hardware details in mind, e.g. Microcontroller (freq, internal/External osc.), LCD etc?
Perhaps would be better if you started the flowchart by setting up configuration settings and adding LCD.

hardware is so simple, pic16f683 with intrnl Osc and 2X16 LCD, display data on lcd in liters. actually i need a calculation method of water flow in liters using this sensor then i modify my software and hardware according my use. need a calculation block diagram i think..

Post by **medelec35** » Sat Mar 07, 2020 11:59 am

kg300 wrote:pic16f683

?
That chip does not exist.
Personally if it was me I would select one of the newer microcontrollers as they are much cheaper, faster and have more memory and functions than the older devices.

Post by **medelec35** » Sat Mar 07, 2020 1:50 pm

Testing Water Flow Meter hardware.png: (161.45 KiB) Downloaded 1471 times

I tried the attached Flowchart for my hardware (different target device) and injected a 225Hz signal into INT pin. Result was good as getting a value between 29.9 and 30.0 L/S
So its slightly more accurate than arduino version.
This the accuracy appears to be constant, its dependent on the target osc frequency.
It must be kept at 8MHz So is compatible with older devices.

kg300 · Post by **kg300** » Tue Mar 17, 2020 7:06 am

medelec35 wrote:Testing Water Flow Meter hardware.png
I tried the attached Flowchart for my hardware (different target device) and injected a 225Hz signal into INT pin. Result was good as getting a value between 29.9 and 30.0 L/S
So its slightly more accurate than arduino version.
This the accuracy appears to be constant, its dependent on the target osc frequency.
It must be kept at 8MHz So is compatible with older devices.

Thanks medelec35

Post by **medelec35** » Tue Mar 17, 2020 11:53 am

You're welcome.
Can you please let me know if works OK or not?

kg300 · Post by **kg300** » Wed Mar 18, 2020 8:39 am

medelec35 wrote:You're welcome.
Can you please let me know if works OK or not?

Yes, it's working. your example show me the way how i use this sensor. actually i'm trying to build a bottle filling project. the MCU start a small pump and sensor start to count flow, when 1 liter is done the MCU stop the pump. now i'm trying to modify your flowchart according my requirement..

Post by **medelec35** » Wed Mar 18, 2020 12:20 pm

kg300 wrote:Yes, it's working.

Thank you, that's good to know.

kg300 wrote: actually i'm trying to build a bottle filling project.

After modifying flowchart, you can post it if stuck?

kg300 · Post by **kg300** » Tue Mar 24, 2020 9:36 am

medelec35 wrote:
kg300 wrote:Yes, it's working.
Thank you, that's good to know.
kg300 wrote: actually i'm trying to build a bottle filling project.
After modifying flowchart, you can post it if stuck?

yes

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