Schematic

Component Placement

Board Layout
Schematic, Board Layout and PIC microcontroller program direct download.
coin.sch - 4shared.com - online file sharing and storage - download
coin.brd - 4shared.com - online file sharing and storage - download
coin.asm - 4shared.com - online file sharing and storage - download
Note:
-Schematic and board layout are Eagle formated files.
Download Eagle Software here
http://www.cadsoftusa.com/
-In asm file you can edit the delay lines for triggering calibration.
Here is the logic, To set the timer for 5 pesos amount or 10 pesos we must trigger the timer 5 times or 10 as fast as the timer can response.
Got It!...