i was using a adapter with 0-16V 350mA rating to power mega8 & GLCD.in between i
used 7805 to make the voltage 5v.it was working fine.but when i connected max232
in the board ,Glcd keeps on reseting itself.

i think its the adapter ,should i use a 0-12 v 500mA adapter.
Help me please.

Thanking u all
KallolKK

i bought it from Bangladesh,it cost me 850tk (bangladeshi taka).its made in
japan as written on it.controller is Ks0108 .resolution 128x64. QY-12864BG is
written on the back of the GLCD.
Ok then i should use 500mA adapter.

Thanks .

Kallol KK


--- In booksbybibin@yahoogroups.com, akash deep <akashdeep007us@...> wrote:
>
>
> you are yourself answering the question you asked...
> btw how much did the glcd cost u??resolution??
>
> --- On Sat, 2/5/09, kallolkk <kallolkk@...> wrote:
>
> From: kallolkk <kallolkk@...>
> Subject: [booksbybibin,www.booksbybibin.tk] GLCD +Max232+Atmega8 power problem
> To: booksbybibin@yahoogroups.com
> Date: Saturday, 2 May, 2009, 7:26 PM
>
>
>
>
>
>
>
>
> i was using a adapter with 0-16V 350mA rating to power mega8 & GLCD.in between
i used 7805 to make the voltage 5v.it was working fine.but when i connected
max232 in the board ,Glcd keeps on reseting itself.
>
> i think its the adapter ,should i use a 0-12 v 500mA adapter.
> Help me please.
>
> Thanking u all
> KallolKK
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>       Bollywood news, movie reviews, film trailers and more! Go to
http://in.movies.yahoo.com/
>

i tried building the famous usbasp(usb loader for AVR's). but it didn't worked
,the way it should be.instead it blocked my atmega8.may be my fuse bit
application process is wrong & i modified the PCB and placed the crystal in a
short distance from the atmega 8.i actually dont know what cased the problem.is
it the fuse bits or
the position of the crystal in the PCB or both.

i dont know how to give fuse bit using pony-prog.please anyone help me in
understanding the fuse bit application process. and the other thing is the
position of the crystal.Help me.>>>


Thanking u all
Kallol KK

set the fuse bits to low 0xFF and high 0xC9

for ponyprog
program the bits
SPIEN ,CKOPT,BOOT SZ1 and Boot SZ0

these are tried and tested for atmega 8 and 16 and 32 set these and forget!!
enjoy

--- In booksbybibin@yahoogroups.com, nitin chaudhary <nitin2162000@...> wrote:
>
> I have made usbasp but not for boot loading but as a usb programmer and it is
working fine. Regarding crystal position, I have not heard any problem regarding
this but for sake i placed it on the nearest position to the atmega8. Keep
trying it...I know it works...
>
>
>
>
> ________________________________
> From: kallolkk <kallolkk@...>
> To: booksbybibin@yahoogroups.com
> Sent: Thursday, 7 May, 2009 12:28:54 PM
> Subject:[booksbybibin,www.booksbybibin.tk] Usbasp fuse bit &crystal position
problem
>
>
>
>
>
> i tried building the famous usbasp(usb loader for AVR's). but it didn't worked
,the way it should be.instead it blocked my atmega8.may be my fuse bit
application process is wrong & i modified the PCB and placed the crystal in a
short distance from the atmega 8.i actually dont know what cased the problem.is
it the fuse bits or
> the position of the crystal in the PCB or both.
>
> i dont know how to give fuse bit using pony-prog.please anyone help me in
understanding the fuse bit application process. and the other thing is the
position of the crystal.Help me.>>>
>
> Thanking u all
> Kallol KK
>
>
>
>
>
>       Now surf faster and smarter ! Check out the new Firefox 3 - Yahoo!
Edition http://downloads.yahoo.com/in/firefox/?fr=om_email_firefox
>

thanks.i'll try it again.Thanks again.

Kallol KK


--- In booksbybibin@yahoogroups.com, nitin chaudhary <nitin2162000@...> wrote:
>
> I have made usbasp but not for boot loading but as a usb programmer and it is
working fine. Regarding crystal position, I have not heard any problem regarding
this but for sake i placed it on the nearest position to the atmega8. Keep
trying it...I know it works...
>
>
>
>
> ________________________________
> From: kallolkk <kallolkk@...>
> To: booksbybibin@yahoogroups.com
> Sent: Thursday, 7 May, 2009 12:28:54 PM
> Subject:[booksbybibin,www.booksbybibin.tk] Usbasp fuse bit &crystal position
problem
>
>
>
>
>
> i tried building the famous usbasp(usb loader for AVR's). but it didn't worked
,the way it should be.instead it blocked my atmega8.may be my fuse bit
application process is wrong & i modified the PCB and placed the crystal in a
short distance from the atmega 8.i actually dont know what cased the problem.is
it the fuse bits or
> the position of the crystal in the PCB or both.
>
> i dont know how to give fuse bit using pony-prog.please anyone help me in
understanding the fuse bit application process. and the other thing is the
position of the crystal.Help me.>>>
>
> Thanking u all
> Kallol KK
>
>
>
>
>
>       Now surf faster and smarter ! Check out the new Firefox 3 - Yahoo!
Edition http://downloads.yahoo.com/in/firefox/?fr=om_email_firefox
>

hi,
For my educational project, i have to use a weight sensor(0-2kg).
Can anybody please help me.
I have already bought a weight sensor(0 -2kg )
it has four wires.

--- In booksbybibin@yahoogroups.com, "rongo024" <rongo024@...> wrote:
>
> hi,
> For my educational project, i have to use a weight sensor(0-2kg).
> Can anybody please help me.
> I have already bought a weight sensor(0 -2kg )
> it has four wires.
>

how about reading the datasheet!?

hi!
there must be a company's name with product id embedded on the sensor
somewhere.try searching that on the company's website.u wud surely get a
datasheet of the product you have since every manufacturer provides it on its
website. c if this helps.
Ashish Sethi
--- In booksbybibin@yahoogroups.com, "rongo024" <rongo024@...> wrote:
>
> hi,
> For my educational project, i have to use a weight sensor(0-2kg).
> Can anybody please help me.
> I have already bought a weight sensor(0 -2kg )
> it has four wires.
>

----- Original Message -----

From: rongo024

To: booksbybibin@yahoogroups.com

Sent: Monday, May 11, 2009 4:07 PM

Subject: [booksbybibin,www.booksbybibin.tk] How to use a Weight sensor

hi,
For my educational project, i have to use a weight sensor(0-2kg).
Can anybody please help me.
I have already bought a weight sensor(0 -2kg )
it has four wires.

is it possible to generate unicode fonts character map to display it on the
GLCD(Ks0108 based controller)? if so could anyone send me a copy of the software
or any help on generating the character map for unicode based fonts.

thanking you all...


Kallol KK

Hi,

I have recently worked with weight sensors/load cells, I would be happy to help
you in this regards. Could you upload the picture of the sensor you have, So i
can help you better.

//
Reyan







--- In booksbybibin@yahoogroups.com, "le_r0umain" <le_r0umain@...> wrote:
>
> --- In booksbybibin@yahoogroups.com, "rongo024" <rongo024@> wrote:
> >
> > hi,
> > For my educational project, i have to use a weight sensor(0-2kg).
> > Can anybody please help me.
> > I have already bought a weight sensor(0 -2kg )
> > it has four wires.
> >
>
> how about reading the datasheet!?
>

If the Ks0108 does not support unicode natively, the short answer is yes, you
could program it with your characters.

As far as I know, all display controllers feature at least 8 memory locations in
their memory map, which one can use to store their custom characters. You can
specify the pixels that light up. I haven't eard of any lcd that supports more
that 8 such locations.

My best guess is that you should search for a lcd with a display controller
which supports unicode.

Regards,
Me.

Thanks for your information .i'll try to find such kind of Lcd but am a bit
worried whether its available in my country or not.any way thank you very much.

Kallol KK


--- In booksbybibin@yahoogroups.com, Mihai Galos <mihaigalos@...> wrote:
>
>
> If the Ks0108 does not support unicode natively, the short answer is yes, you
could program it with your characters.
>
> As far as I know, all display controllers feature at least 8 memory locations
in their memory map, which one can use to store their custom characters. You can
specify the pixels that light up. I haven't eard of any lcd that supports more
that 8 such locations.
>
> My best guess is that you should search for a lcd with a display controller
which supports unicode.
>
> Regards,
> Me.
>

Some know-how sharing:

You can write the '?' character by defining the actual pixels in a vector, where
X is a pixel that lights up(1 logic) and _ is a pixel that is not lit up (0
level).
#define ________ 0b00000000
#define _XXXXX__ 0b01111100
....

const unsigned char acGUI_Font40x11_0505_003F[ 55] = {
   ________,________,_XXXXX__,________,________,
   ________,________,XX___XX_,________,________,
   ________,________,_____XX_,________,________,
   ________,________,____XX__,________,________,
   ________,________,___XX___,________,________,
   ________,________,__XX____,________,________,
   ________,________,________,________,________,
   ________,________,__XX____,________,________,
   ________,________,__XX____,________,________,
   ________,________,________,________,________,
   ________,________,________,________,________};


Regards,
Mihai Galos.


--- In booksbybibin@yahoogroups.com, "kallolkk" <kallolkk@...> wrote:
>
> Thanks for your information .i'll try to find such kind of Lcd but am a bit
worried whether its available in my country or not.any way thank you very much.
>
> Kallol KK
>
>
> --- In booksbybibin@yahoogroups.com, Mihai Galos <mihaigalos@> wrote:
> >
> >
> > If the Ks0108 does not support unicode natively, the short answer is yes,
you could program it with your characters.
> >
> > As far as I know, all display controllers feature at least 8 memory
locations in their memory map, which one can use to store their custom
characters. You can specify the pixels that light up. I haven't eard of any lcd
that supports more that 8 such locations.
> >
> > My best guess is that you should search for a lcd with a display controller
which supports unicode.
> >
> > Regards,
> > Me.
> >
>

One point,

You are returning a byte value from the adc read routine yet comparing it with
values that cannot be stored in a byte value, i.e. max byte value is 255 !! you
need to return the full word value if your comparisons are above 255. You are
not waiting until the conversion is finished either by interrupt or polling the
adc finished bit, so you will get "funny" results.

Regards


--- In booksbybibin@yahoogroups.com, deepakcheriyan@... wrote:
>
>
> Hello,
>           I am trying to make a ADC using Atmega32, it is using internal
refrence voltage 2.56 V but if I am connecting a input with 1.5 V  it is showing
that the input volt is 2.56 V (or 1023). I am adding the code here.
>
>
> #include <avr/io.h>
> #include <avr/interrupt.h>
>  
> // LEDBAR A=0  B=1 CD=3 E=5 FG=7 H=6 I=4 J=2
>  
>  uint8_t readADC()
>   {
>     //Select ADC channel ADC7
>  uint8_t ch;
>  ch = 0b00000111;
>  ADMUX |= ch;
>  //Start single conversion
>  ADCSRA |= (1<<ADSC);
>   //Read converted valu from ADCH
>  ADC = ADCH;
>  
>   return(ADC); 
>   }
>  
> void initADC()
>   {
>     //Refrence voltage internal 2.56 V,Result left adjsent
>     ADMUX = ((1<<REFS0) | (1<<REFS1) | (1<<ADLAR));
>  //Enable ADC and prescelar 128
>  ADCSRA = (1<<ADEN | (1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0));
>   }
> void full(){PORTD = 0xFF;}
> void half(){PORTD = 0xAB;}
> void less(){PORTD = 0x01;}
>
> int main()
>   {
>  DDRD = 0xFF;
>  PORTD = 0x00;
>  asm("sei");
>  initADC(); // initialize ADC
>  
>  while(1)
>     {
>       readADC(0); //Read & Convert A to D
>         if (ADC > 1020) full();
>    else if (ADC > 500 && ADC < 1021) half();
>    else if (ADC > 50 && ADC < 500) less();
>    else PORTD = 0x00;
>     }
>   }
>
>
>  
> By,
> Deepak.T.Cherian
>  
> Thunder Boyz
> MooN Boys
>

Hello,
Stefan is right (as always :)) )

See http://www.mihaigalos.ro/work/Embedded/Advanced/temp2lcd/Code.html

for a sample of how to use the ADC. I use bitshifting for the problem that he
identified.

Regards,
Mihai



--- In booksbybibin@yahoogroups.com, "s.holder123@..." <s.holder123@...> wrote:
>
> One point,
>
> You are returning a byte value from the adc read routine yet comparing it with
values that cannot be stored in a byte value, i.e. max byte value is 255 !! you
need to return the full word value if your comparisons are above 255. You are
not waiting until the conversion is finished either by interrupt or polling the
adc finished bit, so you will get "funny" results.
>
> Regards
>
>
> --- In booksbybibin@yahoogroups.com, deepakcheriyan@ wrote:
> >
> >
> > Hello,
> >           I am trying to make a ADC using Atmega32, it is using internal
refrence voltage 2.56 V but if I am connecting a input with 1.5 V  it is showing
that the input volt is 2.56 V (or 1023). I am adding the code here.
> >
> >
> > #include <avr/io.h>
> > #include <avr/interrupt.h>
> >  
> > // LEDBAR A=0  B=1 CD=3 E=5 FG=7 H=6 I=4 J=2
> >  
> >  uint8_t readADC()
> >   {
> >     //Select ADC channel ADC7
> >  uint8_t ch;
> >  ch = 0b00000111;
> >  ADMUX |= ch;
> >  //Start single conversion
> >  ADCSRA |= (1<<ADSC);
> >   //Read converted valu from ADCH
> >  ADC = ADCH;
> >  
> >   return(ADC); 
> >   }
> >  
> > void initADC()
> >   {
> >     //Refrence voltage internal 2.56 V,Result left adjsent
> >     ADMUX = ((1<<REFS0) | (1<<REFS1) | (1<<ADLAR));
> >  //Enable ADC and prescelar 128
> >  ADCSRA = (1<<ADEN | (1<<ADPS2) | (1<<ADPS1) | (1<<ADPS0));
> >   }
> > void full(){PORTD = 0xFF;}
> > void half(){PORTD = 0xAB;}
> > void less(){PORTD = 0x01;}
> >
> > int main()
> >   {
> >  DDRD = 0xFF;
> >  PORTD = 0x00;
> >  asm("sei");
> >  initADC(); // initialize ADC
> >  
> >  while(1)
> >     {
> >       readADC(0); //Read & Convert A to D
> >         if (ADC > 1020) full();
> >    else if (ADC > 500 && ADC < 1021) half();
> >    else if (ADC > 50 && ADC < 500) less();
> >    else PORTD = 0x00;
> >     }
> >   }
> >
> >
> >  
> > By,
> > Deepak.T.Cherian
> >  
> > Thunder Boyz
> > MooN Boys
> >
>

thanks . couldn't check my mail for a few days,because of my illness. thanks for
the code again ,i'll use this.

thanks again
KallolKK


--- In booksbybibin@yahoogroups.com, "Mihai Galos" <mihaigalos@...> wrote:
>
> Some know-how sharing:
>
> You can write the '?' character by defining the actual pixels in a vector,
where X is a pixel that lights up(1 logic) and _ is a pixel that is not lit up
(0 level).
> #define ________ 0b00000000
> #define _XXXXX__ 0b01111100
> ....
>
> const unsigned char acGUI_Font40x11_0505_003F[ 55] = {
>   ________,________,_XXXXX__,________,________,
>   ________,________,XX___XX_,________,________,
>   ________,________,_____XX_,________,________,
>   ________,________,____XX__,________,________,
>   ________,________,___XX___,________,________,
>   ________,________,__XX____,________,________,
>   ________,________,________,________,________,
>   ________,________,__XX____,________,________,
>   ________,________,__XX____,________,________,
>   ________,________,________,________,________,
>   ________,________,________,________,________};
>
>
> Regards,
> Mihai Galos.
>
>
> --- In booksbybibin@yahoogroups.com, "kallolkk" <kallolkk@> wrote:
> >
> > Thanks for your information .i'll try to find such kind of Lcd but am a bit
worried whether its available in my country or not.any way thank you very much.
> >
> > Kallol KK
> >
> >
> > --- In booksbybibin@yahoogroups.com, Mihai Galos <mihaigalos@> wrote:
> > >
> > >
> > > If the Ks0108 does not support unicode natively, the short answer is yes,
you could program it with your characters.
> > >
> > > As far as I know, all display controllers feature at least 8 memory
locations in their memory map, which one can use to store their custom
characters. You can specify the pixels that light up. I haven't eard of any lcd
that supports more that 8 such locations.
> > >
> > > My best guess is that you should search for a lcd with a display
controller which supports unicode.
> > >
> > > Regards,
> > > Me.
> > >
> >
>

Well, glad to hear you're feeling better ;)

--- In booksbybibin@yahoogroups.com, "kallolkk" <kallolkk@...> wrote:
>
> thanks . couldn't check my mail for a few days,because of my illness. thanks
for the code again ,i'll use this.
>
> thanks again
> KallolKK
>
>
> --- In booksbybibin@yahoogroups.com, "Mihai Galos" <mihaigalos@> wrote:
> >
> > Some know-how sharing:
> >
> > You can write the '?' character by defining the actual pixels in a vector,
where X is a pixel that lights up(1 logic) and _ is a pixel that is not lit up
(0 level).
> > #define ________ 0b00000000
> > #define _XXXXX__ 0b01111100
> > ....
> >
> > const unsigned char acGUI_Font40x11_0505_003F[ 55] = {
> >   ________,________,_XXXXX__,________,________,
> >   ________,________,XX___XX_,________,________,
> >   ________,________,_____XX_,________,________,
> >   ________,________,____XX__,________,________,
> >   ________,________,___XX___,________,________,
> >   ________,________,__XX____,________,________,
> >   ________,________,________,________,________,
> >   ________,________,__XX____,________,________,
> >   ________,________,__XX____,________,________,
> >   ________,________,________,________,________,
> >   ________,________,________,________,________};
> >
> >
> > Regards,
> > Mihai Galos.
> >
> >
> > --- In booksbybibin@yahoogroups.com, "kallolkk" <kallolkk@> wrote:
> > >
> > > Thanks for your information .i'll try to find such kind of Lcd but am a
bit worried whether its available in my country or not.any way thank you very
much.
> > >
> > > Kallol KK
> > >
> > >
> > > --- In booksbybibin@yahoogroups.com, Mihai Galos <mihaigalos@> wrote:
> > > >
> > > >
> > > > If the Ks0108 does not support unicode natively, the short answer is
yes, you could program it with your characters.
> > > >
> > > > As far as I know, all display controllers feature at least 8 memory
locations in their memory map, which one can use to store their custom
characters. You can specify the pixels that light up. I haven't eard of any lcd
that supports more that 8 such locations.
> > > >
> > > > My best guess is that you should search for a lcd with a display
controller which supports unicode.
> > > >
> > > > Regards,
> > > > Me.
> > > >
> > >
> >
>

Hi there! I ve programmed 2 atmega8515 for my toy car project..one on the remote
control and the other on the car..Now i want to transfer the programs on ATMEGA8
or ATMEGA16..The problem is that the UDR from the usart is no more recognising
the characters sent..For example, for going forward, i send the character 'I'
and atmega16 instead of "I" sees an ASCII character or something...8515 sees the
"I" with no problem..Please tell me how should i modifiy my program so that all
things go well...Thank you!

It seems like a classic case of "code porting without consulting the datasheet"
:))

See the initialisation for the USART. To be more precise, see the value you put
in the UBRR Bitrate register ;)


Kind regards,
Mihai

Thank you, Mihai! I've modified the UBRR it seems to work,i receive what i send.

PS: tu sigur esti roman d al meu, multam de ajutor ;)

--- In booksbybibin@yahoogroups.com, Mihai Galos <mihaigalos@...> wrote:
>
>
> It seems like a classic case of "code porting without consulting the
datasheet" :))
>
> See the initialisation for the USART. To be more precise, see the value you
put in the UBRR Bitrate register ;)
>
>
> Kind regards,
> Mihai
>

Hi dears :)

Dears, I am using ATmega16 microcontroller and I need help for about it. I have
interfaced a sensor to portA0 and using ADC which is built in it i have
digitized its output then showing the output on LCD.

So i need a code for HEX to ASCII conversion for AVRs. Can any one help me
plzzzzz.


Thanks in Advance.




Regards
Engr. Naveed Khowaja
B.E(electronics)
Electronic Engineer(DCC Technology)

This might do it,


#define U16_NIBBLE(val) ((uint_8)((val >> 12) & 0x0F))

/*!
    \note  Hex_Ascii.
    \note  Convert unsigned int value into ascii string.
    \param unsigned int hex value.
    \param Char pointer to data.
*/
void Hex_Ascii(uint_16 Hex_Val, char * Data)
{
      uint_8 Cnt = 0;
      uint_8 Temp = 0x00;

      *Data++ = '0';
      *Data++ = 'x';

      for(Cnt = 0; Cnt < 4; Cnt++)
      {
              /*! <!-- This gives us a 4 bit hex value. --> */
              Temp = U16_NIBBLE(Hex_Val);
              if(Temp < 0x0A)
              {
                 /*! <!-- This value = 0 - 9 , add 0x30 to give us a acsii
number. --> */
                 *Data++ = (Temp + 0x30);
              }
              else
              {
                  /*! <!-- This value = A - F , add 0x37 (i.e 0x37 + 0x0A = 0x41
= 'A') to give us a acsii letter(capital). --> */
                  *Data++ = (Temp + 0x37);
              }
              /*! <!-- Shift the value up. --> */
              Hex_Val << 4;
      }

      /*! <!-- Terminate the string. --> */
      *Data++ = '\0'
      return;
}


Regards


--- In booksbybibin@yahoogroups.com, "Arian" <happyman757@...> wrote:
>
> Hi dears :)
>
> Dears, I am using ATmega16 microcontroller and I need help for about it. I
have interfaced a sensor to portA0 and using ADC which is built in it i have
digitized its output then showing the output on LCD.
>
> So i need a code for HEX to ASCII conversion for AVRs. Can any one help me
plzzzzz.
>
>
> Thanks in Advance.
>
>
>
>
> Regards
> Engr. Naveed Khowaja
> B.E(electronics)
> Electronic Engineer(DCC Technology)
>