I was wondering if anyone can help me with a project that I'm trying to get going.
I am trying to make the Arduino control a set amount of liquid that passes through an electric solenoid valve. That is not the tricky part. The tricky part is to start it with a touchscreen, and I also want to be able to adjust the amount that passes through the valve by touching the screen.
In a way I need four "buttons" on the screen. "UP"(or +), "DOWN" (or -), "START" and "STOP".
The start/stop button can be the same, only it changes format depending on wether the valve is open or closed. The screen should also display the set amount of liquid, and the amount that has passet through.
And manually reset the counter with a touch.
It should automatically close the valve when the set point is reached, but I should also be able to stop/start it when ever I want.
Is this a doable project, and can anyone help me with it.
Did you already get a touchscreen/arduino?
Does it have to be touch or can it be push-button instead (push-button can respond to a "stop" a lot faster)?
How do you plan to calibrate your system?
Is this a one-off or a production unit?
Are you looking for help or for someone to write the Arduino code for you?
I have already ordered the touch screen, it is for a small brewery so it does not need to be accurate to milliliters, just within a liter or so. So if the reaction is a bit delayed it's ok.
I do not know how to calibrate yet, any suggestions?
It is for now a one-off, but if I get it to work like I want it to, maybe I'll make some for others.
The best for me would be if someone could write the code for me, but I want to be involved as much as possible so that I will learn.
I am a total noob, but I think Arduino and things like that are unbelieveable fun....