Ajay Bhargav mailto:firstname.lastname@example.org
If you are looking for the simplest project, you are at the right place.
In figure 3 as you can see the digits are bigger than the normal size. For this purpose i'm maiking use of the CGRAM of the LCD, which gives the flexibility to the user to define user defined characters. so to create a character we first need to get the values which are to be written into the CGRAM area. The CGRAM area starts from address 0x40 and for every character there are 8 locations which are to be written. Figure 2 shows the custom character creation.
when we get the values for all the pixels. we write these values to
the CGRAM. the Digit 0 - 9 can be created with the help of eight
such custom characters.
NOTE: You can only create upto 8 custom characters.
The source code for the project is written in C-language, and compiled using Keil C compiler, you can download the c-code, schematic, and if you don't have a cross compiler then you can directly burn the HEX file on to your chip clockV1.1
If you think that there is a problem in the availability of the
chip mentioned in the schematic, then you can also use
AT89C51/AT89C52, make sure that you are using the same port for LCD
and switches which are there in the C-file or in the schematic.
The schematic contains the power supply module also, which is not shown in the figure above.
For any help regarding the project please mail me anytime.
Bill of material required
|Sr no. |
|Part name |
20x4 line LCD
Push Button Switch