[MinnowBoard] 1.6V output on gpio pin

[Ken Tait]

The proper way to do this is something like this:



connect LED_1 to your GPIO pin. You can use almost any small fet. I 
don't recommend a transistor, if so you will have to put in a pull down 
resistor to completely turn it off.

Resistor R12 controls the current and therefore the brightness depending 
upon the led you are using. Different colors require different currents 
since their voltage drop is not the same. Try not to go below about 120 
ohms..10-20ma is sufficient to light most leds.

Ken...hardware designer and software guy :-)

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