Hi Guys,
I fell over this forum yesterday and it seemed like a pleasant place to be
I have been toying with some ideas for awhile and figured I'd ask you for some help.
I live in rural Thailand so parts are not the easiest to get ahold of.
Basically I buy fresh milk quite often, and it needs to be pasteurized(heated), milk is pretty sensitive and needs to be stirred often if not constantly to avoid undesirable changes to the milk solids.
I would like to get into cheese production so obviously I need quite a bit of milk
Anyway the basic idea is obvious and I am sure that there are commercial products out there, but this seems like a nice 'starter' project anyway.
The first project is a stirrer embedded in the lid of a pot.
Ideally it would be battery powered as I don't really like the idea of toying around with mains power just yet.
It is not envisioned as a whisker so the rotational speed does not need to be high, merely enough to keep the milk in motion and have the temperature be consistent throughout.
I have both 'standard' 'toy' dc motors and stepper motors from harddisks around, I figure stepper motors would offer the best control and also allow for best control of rotational speed and intermittent changes in directions without stressing the motor.
However I would rather not toy around with pics or other forms of embedded programming at the moment. So I am wondering if it is possible get to a circuit that would control a stepper motor with 'conventional' electronic parts exclusively.
Ideally id like something like clockwise and counter clockwise, speed control from 0 to 20 rpm either in steps or linearly.
Many thanks in Advance and Happy New Year
unomi
I fell over this forum yesterday and it seemed like a pleasant place to be
I have been toying with some ideas for awhile and figured I'd ask you for some help.
I live in rural Thailand so parts are not the easiest to get ahold of.
Basically I buy fresh milk quite often, and it needs to be pasteurized(heated), milk is pretty sensitive and needs to be stirred often if not constantly to avoid undesirable changes to the milk solids.
I would like to get into cheese production so obviously I need quite a bit of milk
Anyway the basic idea is obvious and I am sure that there are commercial products out there, but this seems like a nice 'starter' project anyway.
The first project is a stirrer embedded in the lid of a pot.
Ideally it would be battery powered as I don't really like the idea of toying around with mains power just yet.
It is not envisioned as a whisker so the rotational speed does not need to be high, merely enough to keep the milk in motion and have the temperature be consistent throughout.
I have both 'standard' 'toy' dc motors and stepper motors from harddisks around, I figure stepper motors would offer the best control and also allow for best control of rotational speed and intermittent changes in directions without stressing the motor.
However I would rather not toy around with pics or other forms of embedded programming at the moment. So I am wondering if it is possible get to a circuit that would control a stepper motor with 'conventional' electronic parts exclusively.
Ideally id like something like clockwise and counter clockwise, speed control from 0 to 20 rpm either in steps or linearly.
Many thanks in Advance and Happy New Year
unomi