Comments on Design with Microcontrollers: NOKIA 3310 LCD interfacing with ATmega8

And also, I'd like to know what's the read...

2012-01-04T08:47:31.575-08:00

And also, I'd like to know what's the reading of VOUT of the screen?

Hello, I'm trying to interface an Atmega8a wi...

2012-01-04T07:39:04.318-08:00

Hello,

I'm trying to interface an Atmega8a with this LCD but nothing shows on the screen. The board connections are fine and SS, SCE and RST pins are connected as in your project.

The screen works. I doscovered that if I connect SCK to GND I get some random lines on the screen.

However, it seems that I can't use MISO pin as an output to make it high or low to reset the LCD.

So, I modified the library like this:

void LCD_reset()
{
SPCR &=~ 0x40; // disable SPI
PORTB &=~ 0x10 ; // clear RST pin to trigger a RESET on LCD
delay_ms(100); // delay required by screen...
PORTB |= 0x10 ; // set RST pin
SPCR |= 0x40; // re-enable SPI
}

void LCD_init ( void )
{
delay_ms(100);

CLEAR_SCE_PIN; //Enable LCD

LCD_reset();

SET_SCE_PIN; //disable LCD

LCD_writeCommand( 0x21 ); // LCD Extended Commands.
LCD_writeCommand( 0xE0 ); // Set LCD Vop (Contrast).
LCD_writeCommand( 0x04 ); // Set Temp coefficent.
LCD_writeCommand( 0x13 ); // LCD bias mode 1:48.
LCD_writeCommand( 0x20 ); // LCD Standard Commands, Horizontal addressing mode.
LCD_writeCommand( 0x0c ); // LCD in normal mode.

LCD_clear();
}

So, what I did is to disable SPI while making MISO pin go low to reset the LCD and re-enabling the SPI afterwards. Still it does not work.

Do you have any idea what might be wrong?

makasi banyak pak... sangat2 membantu

2011-12-31T06:00:28.927-08:00

makasi banyak pak... sangat2 membantu

please send me the files required to make the pcb ...

2011-12-26T10:57:08.270-08:00

please send me the files required to make the pcb at youssefaly1997@gmail.com thank you

sir , i am making a project on accelerometer and i...

2011-11-05T23:51:43.046-07:00

sir , i am making a project on accelerometer and i want to connect my adxl 335 to the bread board
sir actually i am using adxl 335 PCBZ
which is very small (4mm x 4mm x 1.45mm LFCSP) and can't be soldered directly.
so how can i connect it with breadboard.
i don't want to use breakout board since i have already purchased the ic.

Can you just mail me the sources of this thermomet...

2011-10-02T22:46:23.984-07:00

Can you just mail me the sources of this thermometer project?
My Email ID is aditya.boby@gmail.com

hi, can i use the phone's board it has connect...

2011-09-07T06:11:52.791-07:00

hi, can i use the phone's board it has connectors for it but im not sure will it work or not my email:youssefaly1997@gmail.com
thanks,
youssef aly

hello dharmani,,, I devartha from Indonesia, I'...

2011-08-15T20:23:40.329-07:00

hello dharmani,,,
I devartha from Indonesia, I'm very interested in your article and I feel very lucky to be able to read it ...
I need your help to give an example using the basic language program in Bascom avr ...
thanks before

thank you mas dharmani sampean emang apikan tenan,...

2011-08-15T14:36:08.952-07:00

thank you mas dharmani sampean emang apikan tenan,,,

How to test 3310 LCD before connecting to Microcon...

2011-08-09T03:39:07.616-07:00

How to test 3310 LCD before connecting to Microcontroller?
I have connected 10microF to Vout and ground and then connected 3V battery to Vdd and Ground. remaining all pins including reset pin left unconnected. But there was no any change in the display.

Do I need to connect Reset to Ground.? while testing?

Can anyone confirm this please?

Saif

Dharmani sir can you please mail me the source cod...

2011-06-22T02:48:51.832-07:00

Dharmani sir can you please mail me the source code for this thermometer....
my mail id is
ritesh_kumar_8467@yahoo.com

Hi Dharmani Thank you for sharing your work. Can y...

2011-05-26T06:15:33.169-07:00

Hi Dharmani
Thank you for sharing your work.
Can you tell what is the use of following function.

void LCD_setPixel ( unsigned char x, unsigned char y);

void LCD_clearPixel ( unsigned char x, unsigned char y);

Also I can able to display char only on line 1,2,3; other lines cant display any char.

what is the fault!

sir,i wanna interface nokia 1110 with 8051,,does i...

2011-04-01T04:17:34.862-07:00

sir,i wanna interface nokia 1110 with 8051,,does it suppports at commands,,,wats process???plz help me out...
my project is vehicle tracking system using gps & gsm in wich extracting info from gps receiver interfaced with 8051,sending that info(longitude,lattitude) to remote gsm mobile on request to the nokia 1110 interfaced with the same microcontroller

Hi Lulian, I hope you've solved the problem b...

2011-03-27T23:50:57.479-07:00

Hi Lulian,

I hope you've solved the problem by now, as I also can't see what's wrong there. Certainly contrast is not a problem, unless you keep changing it in the software. Since contrast is adjusted only once during the LCD initialization in the code, it will remain the same, it wouldn't result in blinking.
Have a look at any part of the code which you might have modified.
This can also result if the capacitor you mentioned keeps charging discharging, may be result of faulty cap, I guess.
Or the worst thing, try with another display.

Hi, I did everything you said above in this artic...

2011-03-24T10:48:54.959-07:00

Hi,

I did everything you said above in this article. I write a simple test string on the lcd. The string shows up but the screen blinks. I goes black, then white, again black, and so on. I can se the text only when is white. What can I do?
I think is something about the contrast, but I can't figure out what...
The LCD's power supply is a LM317. I do have put a 10uF capacitor on Vout. If I take that capacitor the screen goes dark, if I put it, it starts blinking.

My email is: iulian.matesica@gmail.com - but I think here is the best place for the solution. Maybe this is useful for other people.

sir can u help me ! i want to interface nokia sc...

2011-02-23T09:07:52.633-08:00

sir can u help me !

i want to interface nokia screen with atmeg2560. my email id is

johnalfred394@rediffmail.com

Can you please mail me the sources of this 3310 LC...

2011-02-14T20:27:31.652-08:00

Can you please mail me the sources of this 3310 LCD with atmega8 project?
My Email ID is sips.delphi@gmail.com

Hi, very cool man, thanks to you I built it from s...

2011-02-03T13:25:12.944-08:00

Hi, very cool man, thanks to you I built it from start, but can you pls send me the code, thanks very much,
Kustas

kusta14@hotmail.com

can you please send me the code for this. I will s...

2011-01-24T20:44:29.550-08:00

can you please send me the code for this. I will set this up using the exact same setup as you. Thanks a lot in advance. My e-mail ID is find.the.immortal@gmail.com

The link to the LCD Font Generator program is a de...

2010-12-14T02:17:15.742-08:00

The link to the LCD Font Generator program is a dead link. I searched for a few hours for the program but can't find. Are you able to send to me?

Hello, Mr. Dharmani.. Iloved the way you've d...

2010-11-12T01:10:49.217-08:00

Hello, Mr. Dharmani.. Iloved the way you've described the topic. wish u good luck in your future endeavours!!
I have decided to follow along your lines to interface 3310 to ATmega8. It would immensely help me if you code send me the code files to

pratikshuklalucku@gmail.com

Thanks n GOOD LUCK!!

i really like your work if you can please send me...

2010-10-11T01:35:57.184-07:00

i really like your work
if you can please send me the source code.
i am working with atmega8.
my email id is percy.embedded@gmail.com

Hiiii.... Dharmani... Could you help me... to send...

2010-07-29T18:13:45.736-07:00

Hiiii.... Dharmani...
Could you help me... to send C code and the LCD library...

i need it so much...

thank you so much for helping....

best regard.

ucupz_lc@yahoo.co.id

Hiiii.... Dharmani... Could you help me... to send...

2010-07-29T18:12:42.196-07:00

Hiiii.... Dharmani...
Could you help me... to send C code and the LCD library...

i need it so much...

thank you so much for helping....

best regard.

Thumbs up :) But why did you skip PB1?

2010-07-03T04:48:55.344-07:00

Thumbs up :)
But why did you skip PB1?