Hello everyone!
I was working on my project and I'm struggling with something basic sadly. I connected a water pump to my Arduino board to be able to control it.
I made a simple command to just turn it on and off with a delay command, but the pump doesn't turn on, just faintly, even though it does turn on if the delay command doesn't exist.
I would appreciate any help.
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Arduino GPIO pins are not designed to be used as power supplies. How much current does the pump take ?
The pump takes at least 130 mA, that's why I thought the transistor is necessary.
Always show us a good image of your ‘actual’ wiring. Give links to components.
What is the resistance of the pump ?
My wiring is horrible so I just sent that image to not make it hard, but sure.
I'm not sure but I think the resistance is 23 ohms.
I see a transistor but don't know which transistor. I see a 1k resistor connected to it's center pin, if that's the base, 1k is too high unless the motor pulls less than about 50mA. I can't tell which wire goes to the collector, they all leave the picture.
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