(P89v51RD2) 128x68 Graphic Display

Let us have presentation

Schematic

Please refer the specific controller page for details for Microcontroller & Compiler

You can download the code from here

(P89v51RD2) 20x4 LCD

20x4 LCD is extended version of 16x2 LCD the only difference is their size & capacity to display
16x2 is 16 character x 2 lines &
20x4 is 16 character x 4 lines
Their interfacing is same. Please refer the bottom memory diagram for 20x4 in the slide which is same for 16x2

Please find controller specific details & compiler details on that specific page.
You can download code from here

(P89v51RD2) 16x2 LCD

Let us see the presentation

Schematic

     

I have in operated the LCD in 4 bit data mode
You can find details of compiler & Controller on Specific controller page
Download the code from here

(P89v51RD2) 7 Segment

Let us have the presentation first

Now we have 8 7-segment display.
How many microcontroller pins are required to interface it.
You might me thinking it would be 8x7=56. Microcontroller don't even have that many I/O.
So we would go ahead for multiplexing which would utilize just 16 I/O lines

Refer to schematic below

Now i have 2 codes for this that explain different cases when you work on it

Get the details
Microcontroller Platform: MCS 51
Microcontroller: NXP P89v51RD2
Compiler: Uvision Kiel
You can download code from
1) here
2) here

Labor Day Utilization!!!!

Through out the weekend there would be 22 Presentation posting which would talk about various peripheral in details with their code on P89v51RD2, PIC16F877A,Atmega 16.

Please stay tuned for update and like it on Facebook & twitter.

Hello !!!!

Hi!!! Guys this is my second blog, My 1st blog is about mobile robots. On which you can find collection of all mobile robotics community & their prototype or commercial product robot. You can visit my blog here

On this blog you can find tutorials on 8051,PIC,AVR 8-bit microcontrollers. I would be posting every topic in details with their presentation & a working code.

I have used embedded C & would list out details for compiler & IDE in the next blog.

hope to see your comments & view on all post...

Regards