amredries
Member level 2
measure negative voltage microcontroller
i am design simple project using 16f877 it is used for measure 4 voltage the problem is this voltages are change from -2 volt to 5 volt but i found that my pic read any negative voltage aas zero so Any one can help me to measure negative voltage ?
i am design simple project using 16f877 it is used for measure 4 voltage the problem is this voltages are change from -2 volt to 5 volt but i found that my pic read any negative voltage aas zero so Any one can help me to measure negative voltage ?