Hello

I want to detect that when a pin on the 8052 becomes float.... means normally it sees the +5V to detect 1 but i want micrcontroller to detect when the pin is grounded or the line is floating. there is a possibility to use a transistor but i do not want to use it in the design because it makes the over all circuit bulky specially if you have to monitor 16 input lines. i want the circuit compact.



Thanks
Shahzad