I don't think we are speaking about same thing :-).
Look at Sango scheme: [reprap.org]
There is additional external 100k pull-down resistor R3 on MS1 pin.
I know that internal resistors are there to pulling line down... It can't "fly" in the air. Try left unconnected input of ADC and You will see...
So... Why additional pull-down?
Look at Sango scheme: [reprap.org]
There is additional external 100k pull-down resistor R3 on MS1 pin.
I know that internal resistors are there to pulling line down... It can't "fly" in the air. Try left unconnected input of ADC and You will see...
So... Why additional pull-down?