Hi guys,
I am new to micro controller circuit connection and programming.
Currently I'm doing a project about detecting position of an object.
I wanted to know the time when an object passed by,
so I came across PCF8503 chip and i've google about it but sadly i couldn't found much information about that chip.
For the connection I only manage to found this: http://www.winpicprog.co.uk/pic_tutorial_i2c_clock_board.htm
A circuit connection of PCF8503 chip. I'm not sure whether the connection work for me or not because i'm using AT89S8252 microcontroller.