Week 10: short summary of the project

The circuit had been draw and simulated by using PCB Wizard software. While the coding used in the PIC16F877A is in C Programming which had been compile and run by using C-Compiler software. Then, the programs are loaded into the PIC microchip. After that, the PIC is attached to the circuit to run the project. 

The Circuit Connection

When the project completely done, the sensor detects incoming mail and number of mail. The data from the sensor are send to the PIC and was converted from analog to digital signal. According to the data signal from the circuit that had been build, the data are send to the receiver.After I loaded each program file into  microcontroller, I installed  IR Sensor and GSM Module into the mailbox. Then all circuit board was switched on as shown below:-

The Circuit installed into the Mailbox

Before the letter inserted into the mailbox, the LED is turn GREEN to show that the mailbox is empty. After the letter has been inserted into the mailbox, the LED turned on to the RED to inform the letter is inside the mailbox. The buzzer produces sound after few moments or GSM will send message to the user to inform the incoming mail.