And it's a bad idea to power the pump directly with the board, because it is drawing to much current!!
You need a transistor, Mosfet, relay or somting else to switch the load!
Can I connect this water pump directly to Arduino due? it should work right?
No. You'll need a transistor or other driver (e.g. relay) to power that.
NO - Power the motor with its own supply, switch the motor on/off with a moset or transistor. the DUE is a controller NOT a power supply.
No you cannot connect the water pump directly. You will need a driver of some sort as the Arduino cannot supply the current necessary for the pump. A relay or a transistor (BJT or logic level (3.3V) MOSFET) driver would work. Choose a drive that can handle the stall (starting) current.
If the stall current is not listed on the motor data sheet one can estimate the stall current. To estimate the stall current, measure the motor winding resistance. Take several measurements rotating the motor a bit between readings. Use the lowest reading in the calculation. The estimated stall current is the motor supply voltage divided by the measured resistance.
Threads merged. Please stop cross-posting.
How come I still need a relay or a transistor or a mosfet in order to run a lower power pump? The arduino DC current meets the bare minimum of the operating current and the power recommendations. What am i missing?
And is there a way to just directly control a pump directly? I do not know how to use a relay or a transistor or a mosfet so I wanna see if I can skip that piece and go to the pump directly.
Also, what does cross-posting mean? I was asking for a different water pump where the operating current can technically run direcly with the arduino. So am I only allow to post only water pump related stuff into this thread?
I was asking for a different water pump where the operating current can technically run direcly with the arduino.
The pump that you linked to in post #21 has an operating current of 13 to 220 mA at 2.5 to 6V. Can a Due digital pin safely supply such a current ?
The pump linked to in post #8 has a link to an Arduino project on its page which shows how to use a MOSFET to drive it
The arduino DC current meets the bare minimum of the operating current and the power recommendations.
The starting current is likely to be as much as an Amp or more. Show me in the Due specifications that an output can source or sink 1A, please.
Sorry, the diagram disappeared in the merge. (GF, you could patch your post!)
Paul__B:
...the diagram disappeared in the merge...
Ooh. I missed that. Sorry about that.
Paul__B:
(GF, you could patch your post!)
Already fixed.
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