[MinnowBoard] 1.6V output on gpio pin

[Trevor Woerner]

Hi Dave,

On 02/05/16 18:23, Anders, David wrote:
> It depends on how you have it connected

At first I had it in series with a 560ohm resistor but it wasn't really 
turning on, so I got rid of the resistor and am just putting the LED 
between the GPIO pin and ground.

> and what the current draw is.

No idea :-) It's just an LED I had lying around in my parts drawer. Is 
there a simple way to determine it?

>   Like many dev boards, the Max/Turbot is only designed to provide a very minimal current on the GPIO pins, generally around 7mA. You'll need to use a low current LED along with a current limiting resistor to make sure you don't exceed that value.

How many amps do the +3.3V and +5V pins provide? Putting the LED between 
either of those and ground works great. I just wish I could get the same 
results using a GPIO too.

Best regards,
     Trevor