today I managed with great help from @ascend (thanks soo much!) to rewrite the arduino FW in order to delete the pullup of one analog input. This helped me to measure something meaningful with my Sharp 2Y0A21distance sensor.
Therefore my question is, how can I save this customized Arduino FW version? Next time you will modify something on the code @Gabriel this will be overwritten, right? Would you be so nice and disable the pullup for D1 and D57 for instance? Otherwise this will never ever work with updates I guess…
Some pics below: