Science Buddies: "Ask an Expert"

Hi,

I am trying to design an electronics project, but I need help determining which circuit to buy or what electrical values to use. I will have a small 3 cm fan with a 7-8 cm fan also on the same circuit. There is a switch to provide 2 speeds and a small water pump to pump just 500 ml of water (I am making a customized evaporative cooler at home). I also want to be able to have these charge on a battery and be able to charge that battery with a micro USB just like phones. Can you help me please?

Thanks!

Hi TimeToLearn,

The Science Buddies "ask an expert" forum is for helping students in grades K-12 with their science projects. Can you help us understand the how this evaporative cooler will be used in the experiment and what questions / hypothesis you are trying to address?

Otherwise, please consider a google search for Arduino kit and reaching out to some of the support community for advice on what you are trying to build.

Best of Luck!
Willey