Complete Circuit

After all the drilling and soldering, here is the view of my complete project.

As you can see, below are the components that already been connected in the PCB board by following each of every component's data sheet.

Components for this project

Table below shows the connection for each component needed for each pin in PIC16F877A.

PIC I/O Pin	Connected To
	Sensor / Actuator	Function
RA0	Red LED	On when reduce item mode selected
RA1	Green LED	On when add item mode selected
RA3	Yellow LED	On when reset mode selected
RB0, RB1, RB2, RB4, RB5, RB6, RB7	4x20 LCD	Show item price, total and balance.
RD1, RD2, RD3, RD4, RD5, RD6, RD7	3x4 Keypad	Key in budget to expense
RC1	Red push button	Select reduce item mode
RC2	Yellow push button	Select reset mode
RC3	Green push button	Select add item mode
RE0	RFID reader, white wire	Receive data from RFID reader
RE1	RFID reader, green wire	Receive data from RFID reader
RE2	RFID reader, orange wire	Enable / Disable RFID reader