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Hi everyone.
I am very new to the Arduino world, but eager to learn.
I need to make a heated blanket increase in heat when fsr sensors are triggered. In other words I need to make an analog output corresponding to my analog input, but with en external power supply. So far all I can find is the MOSFET transistor, but that only allows me to have an on/off-output.
Any quick fixes?

Thanks in advance.
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The trick is to use FETs with PWM.

http://www.thebox.myzen.co.uk/Tutorial/PWM.html
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Thanks. Looks like just what I was looking for!
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