Microcontroller › 8051 › RFID BASED TOLLPLAZA › Hi Sachin, Have you connected
April 20, 2014 at 11:25 am #11593
SHAH DISHANT H.
Have you connected pull up resistor on P0?
You must connect external pull up with P0. P1, P2 & P3 has internal pull up but P0 does not have it ..!!
Try with 4.7k or 10k pull up and test..!!