[HELP] Current-Voltage converter for ADC use

[electronproton]

Hi all.. I'm designing a Safe deposit box..
It use motor to open and close the box..
but i want to know if the door is blocked when closing/opening..

I realize that the current needed for the motor will increase if it's blocked..

I'm using ATmega ADC, but it need voltage input..

so i need a current-voltage converter to know if it's blocked or not..

can someone provide me with circuit and explanation?

thx


Daniel

 

[VVV]

See my post here