DIGITAL PANEL METER. DIGITAL PANEL METER FOR CONTROL THE MOTOR SPEED. IT DISPLAY THE SPEED AND CONTROLS TO SET SPEED

REMOTE CONTROL DIGITAL GOLD RATE DISPLAY. ITS DISPLAY EVERY DAY GOLD RATES. THIS IS SET BY IR REMOTE. THIS WAS ALSO DISPLAY THE REAL TIME AND DATE.

GSM BASED 2 CHANNEL REMOTE CONTROLLER. THIS UNIT SWITCH ON/OFF THE ANY DEVICE THROUGH THE SMS OR DTMF CONTROL. THIS PRODUCT USED FOR SECURITY SYSTEMS. STREET LIGHT CONTROL SYSTEM. OR ANY OTHER DEVICE ARE ON/OFF FROM REMOTE PLACE.

DEVELOPMENT OF FIRE ALARAM SYSTEM.

DEVELOPMENT OF GPS DIGITAL CLOCK. THIS CLOCK WAS GPS SYNCHRONISED CLOCK.

DEVELOPMENT OF GSM BASED SECURITY SYSTEM. THIS SYSTEM SEND THE SMS ALRELT WHEN ANY UNAUTHORISED ENTER TO THE OUR HOUSE.

PHASE CORRECT PWM

#include "mega16.h"
#include "delay.h"
void main(void)
{
unsigned char i;
PORTA=0x00;
DDRA=0x00;
PORTB=0x00;
DDRB=0x08;
PORTC=0x00;
DDRC=0x00;
PORTD=0x00;
DDRD=0x00;

// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: 16000.000 kHz
// Mode: Phase correct PWM top=FFh
// OC0 output: Non-Inverted PWM
TCCR0=0x61;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off

TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer 2 Stopped
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
while (1)
{
//Fade in ....
for(i=1;i<255;i++)
{OCR0 = i;
 delay_ms(10);
}
//Fade out ....
for(i=255;i>0;i--)
{OCR0 = i;
 delay_ms(10);
 }
};
}

SOLAR CHARGE CONTROLLER

it was solar charge controller auto cutoff if bat ful and low.

Chip type : ATtiny13
AVR Core Clock frequency: 0.900000 MHz
Memory model : Tiny
External RAM size : 0
Data Stack size : 16
*****************************************************/
#include
#include
#define ADC_VREF_TYPE 0x00
#define FET PORTB.0
#define BTY_LOW PORTB.1
#define BTY_FULL PORTB.2
//***************************************************
unsigned int ADC_RESULT;
bit solar_flag,bty_full_flag,bty_low_flag;
unsigned char count;
//***************************************************
unsigned int read_adc(unsigned char adc_input)
{
ADMUX=adc_input (ADC_VREF_TYPE & 0xff);
delay_us(10);
ADCSRA=0x40;
while ((ADCSRA & 0x10)==0);
ADCSRA=0x10;
return ADCW;
}


void main(void)
{
#pragma optsize-
CLKPR=0x80;
CLKPR=0x00;
#ifdef _OPTIMIZE_SIZE_
#pragma optsize+
#endif
PORTB=0x00;
DDRB=0x07;
TCCR0A=0x00;
TCCR0B=0x00;
TCNT0=0x00;
OCR0A = 0;
OCR0B=0x00;
GIMSK=0x00;
MCUCR=0x00;
// Timer/Counter 0 Interrupt(s) initialization
TIMSK0=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
ACSR=0x80;
ADCSRB=0x00;
DIDR0&=0x03;
DIDR0=0x00;
ADMUX=ADC_VREF_TYPE & 0xff;
ADCSRA=0x87;
while (1)
{delay_ms(100);
//-----------------------------------
ADC_RESULT = read_adc(3);
if(ADC_RESULT > 390)
{solar_flag = 1;
}
else if(ADC_RESULT < solar_flag =" 0;" adc_result =" read_adc(2);"> 515)
{bty_full_flag = 1;
}
else if(ADC_RESULT < bty_low_flag =" 1;" bty_full_flag =" 0;" tccr0a="0x00;" tccr0b="0x00;" ocr0a =" 0;" fet =" 0;" bty_full =" 1;" bty_full =" 0;">10)
{count = 0;
BTY_LOW = !BTY_LOW;
}
}
}
else
{if(bty_full_flag)
{BTY_FULL = 1;
}
else
{BTY_FULL = 0;
}
if( bty_low_flag)
{FET = 0;
TCCR0A=0x00;
TCCR0B=0x00;
OCR0A = 0;
BTY_LOW = 1;
}
else
{TCCR0A=0x83;
TCCR0B=0x03;
OCR0A = 50; //FET = 1;
BTY_LOW = 0;
}
}
};
}