So on my project (my first) I'm trying to make it so my arduino powers a pump that sprays water out as mist. So far I am using this pump:
and powering it with the arduino's 5v pin using a relay to turn it on and off. I bought this mist nozzle to put on the end of the tubing:
So far, everything works code wise, and water comes out of the tubing without the nozzle, but when I put it on, the pump can't push the water through the nozzle.
I think this is because the pump is not powerful enough to give enough pressure to push the water through the small nozzle. I am wondering if anyone knows either a better nozzle that can mist water with low pressure, or a more powerful pump that will work with an arduino nano.
OK, you have a few very basic misunderstandings here.
jnyeah:
and powering it with the Arduino's 5v pin using a relay to turn it on and off. I bought this mist nozzle to put on the end of the tubing:
An Arduino is not a "power supply", that is a totally different component. An Arduino does not "power" anything.
jnyeah:
I think this is because the pump is not powerful enough to give enough pressure to push the water through the small nozzle.
Correct.
jnyeah:
I am wondering if anyone knows either a better nozzle that can mist water with low pressure,
That is an absolutely absurd statement. You already have the "mist nozzle", it is correctly engineered and it works - if you provide adequate pressure. It is nonsense to look for something "better"! The specification of the pump you have cited is that it can produce a "head" of water of 500 mm. To produce a mist, you would require a head of perhaps 5 or 8 metres. Maybe less, but that is at least ten times the pressure and several times the flow.
jnyeah:
or a more powerful pump that will work with an Arduino Nano.
Given that you are using a relay module to switch it, many pumps will "work" with a Nano.
I would start looking at the pumps - and nozzles - used for car windscreen washers. These will require several Amps at 12 V. You need a power supply for that order of power.
A higher pressure pump, which you probably need for “mist”, is likely to need way more power than an arduino can supply directly. Maybe a windshield sprayer motor (frequently available surplus. But several amps at 12V!) https://www.goldmine-elec-products.com/products.asp?dept=1215
westfw:
A higher pressure pump, which you probably need for “mist”, is likely to need way more power than an arduino can supply directly. Maybe a windshield sprayer motor (frequently available surplus. But several amps at 12V!)
[Pumps-Electronic Goldmine
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Are you referring to this pump G23346 - from that page ?
The specification of the pump you have cited is that it can produce a "head" of water of 500 mm. To produce a mist, you would require a head of perhaps 5 or 8 metres. Maybe less, but that is at least ten times the pressure and several times the flow.
