This is sort of on topic, except I haven’t finished.
I’ve been working on making a magnetic stirrer with an integrated scale and heating. It isn’t specific to esp or esphome stuff, but I happen to be using an esp32 to power it.
I wanted to buy a stirrer and discovered even the most basic equipment is extremely expensive. Once you add heat, let alone heat control that’s accurate with a digital readout, or a scale, prices are in the multiple thousands.
I know the one I make isn’t going to be as precise or accurate, the build quality won’t be as good, but it’ll be good enough for my purposes.
I’ve found very cheap models online, but oddly a lot of them can’t be shipped here and not surprisingly, the reviews are reliably terrible anyways.
I’ve been having a hard time figuring out the stirring part, ironically. The heat and scale part struck me as the trickiest initially, but I’m not smart enough to know how to protect the magnets from the heat.
My intuition at this point is that maybe I can accomplish this using electromagnets since they won’t be permanently damaged by heat, but I have no idea how to program this to work with a stirrer at a distance. It might be the completely wrong path to take, too.
In any case it’ll be worth it. I’ve been wanting a proper stirrer for quite a while, and the one I’m using at the moment is a computer fan hooked up to a potentiometer and an nmos, glued into a 3d printed platform.
I’ve been working on making a magnetic stirrer with an integrated scale and heating. It isn’t specific to esp or esphome stuff, but I happen to be using an esp32 to power it.
I wanted to buy a stirrer and discovered even the most basic equipment is extremely expensive. Once you add heat, let alone heat control that’s accurate with a digital readout, or a scale, prices are in the multiple thousands.
I know the one I make isn’t going to be as precise or accurate, the build quality won’t be as good, but it’ll be good enough for my purposes.
I’ve found very cheap models online, but oddly a lot of them can’t be shipped here and not surprisingly, the reviews are reliably terrible anyways.
I’ve been having a hard time figuring out the stirring part, ironically. The heat and scale part struck me as the trickiest initially, but I’m not smart enough to know how to protect the magnets from the heat.
My intuition at this point is that maybe I can accomplish this using electromagnets since they won’t be permanently damaged by heat, but I have no idea how to program this to work with a stirrer at a distance. It might be the completely wrong path to take, too.
In any case it’ll be worth it. I’ve been wanting a proper stirrer for quite a while, and the one I’m using at the moment is a computer fan hooked up to a potentiometer and an nmos, glued into a 3d printed platform.