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Topic: how to switch on a 12V motor with arduino? (Read 523 times) previous topic - next topic

ashubhatt

I'm using a Lithium Ion  battery of 12V to power on Arduino.
How to use that same battery to turn on the 12 V motor ?
I want to turn on the motor by arduino when i press a switch or button.
The battery can provide 3A current whereas motor only requires a 1.5A current.
I know the programming. But I dont know how to set up the electronics needed.

I'm new to electronics..
Please help.

johnwasser

Google 'Arduino transistor' to see how to use an NPN transistor and a resistor to switch large currents (> 30 mA) and/or high voltages (> 5V).
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MarkT


I'm using a Lithium Ion  battery of 12V to power on Arduino.
How to use that same battery to turn on the 12 V motor ?
I want to turn on the motor by arduino when i press a switch or button.
The battery can provide 3A current whereas motor only requires a 1.5A current.
I know the programming. But I dont know how to set up the electronics needed.

I'm new to electronics..
Please help.


Please provide links to the battery and the motor...  We will just be guessing otherwise.

Is that 1.5A rating for the motor the no-load current, full-load current or stall-current?

Do you mean 11.1V lithium battery?  Does the battery have built-in protection circuitry?
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