im currently planning my first project and wanted to include a pump. The set i bought with the pump contained a relay aswell and many people seem to use it in similar projects to mine.
I personally use an arduino uno and i believe i dont need to include a relay, right?
My assumption is that i connect the pump to an analog output port on the arduino so i can regulate the power of the pump as well as the duration (as i can turn the port on/off at any time). A relay wouldnt help me at all right? am i correct that a relay is only useful, if my output port has insufficient power/wrong voltage to power the pump? or will my idea without a relay affect the longevity of the pump/arduino in any way?
A Uno does not have analog output ports. Which pins are you thinking they are?
All output pins almost certainly have insufficient power to run a pump directly even though you have given no details of your pump.
If you want to control the speed of the pump you will need something like a MOSFET circuit connected to a PWM pin and, unless the pump is really tiny, a separate power supply for it. For more details you'll need to provide some information about the pump (a link to a datasheet would be ideal).
A Uno does not have analog output ports. Which pins are you thinking they are?
All output pins almost certainly have insufficient power to run a pump directly even though you have given no details of your pump.
If you want to control the speed of the pump you will need something like a MOSFET circuit connected to a PWM pin and, unless the pump is really tiny, a separate power supply for it. For more details you'll need to provide some information about the pump (a link to a datasheet would be ideal).
Steve
Hey Steve, thanks for the quick reply!
oh, good thing i asked. I thought those ports with a squiggly line(~) in front of them were analog outputs, so i could define what voltage i wanna use (ports 3,5,6,9,10,11)
about the pump, i havent found a data sheet but its this one
