Objective: Investigate LCD 4 x 16
Content:
This LCD has 4 rows and each row has 16 columns for symbols, characters and number display. It has built in HD 44780 controllers to interface with microcontroller for display purpose. This LCD can display A-Z, a-z, 0-9 and types of symbols in ASCII code. Communication between LCD and PIC is quite complicated. However the C compiler already comes with LCD driver, this file will automatically solve the interface between LCD and PIC. Thus, we can easily clear the screen, shift cursor and display message which is the parameter of solar panel voltage, current and time. This LCD has 16 pins and it is operating at 5V DC for LCD operation and its background light. RB0 to RB7 except RB3 of PIC reserved for LCD application, this is because lcd.c already set RB0 to RB7 for LCD application.
The figure above show the circuit that we use for this project. the connection from RD1 to RD7 is connected to the PIC microcontroller.
Conclusion:
As a conclusion we choose to use the LCD 4x16 it is because the LCD is suitable to used for my project to show the data which is voltage current and time.
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