Powering Mini DC Air Pumps and Heating Pads using Arduino Uno

Projects General Guidance
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I'm working on a project that requires the use of air pumps (4.5V) and heating pads (5-12V). I'm attempting to power it with an Arduino Uno, but I guess I'm limited.

Reading the forums gives me the idea to use MOSFETs to drive the pumps, but I'm not able to understand how. I need to run at least two pumps, one for inflation and one for deflation.

The heating pads, on the other hand, are only faintly heating, and I need to connect two or more of them together to produce heat.

I do have MOSFET and RELAY modules from Tinkerkit if it would be of any help. I am new to the world of electronics, so guidance in form of relevant articles or videos will be beneficial in moving forward.

Thanks!

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Generally an Arduino can control things, but for anything pulling much current it can't power them - you must provide separate power. You can use MOSFETS or relays to switch the power - search the forum for many many examples of their use.

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