Pada kesempatan kali ini saya akan membahas mengenai bagaimana cara membuat sebuah alat yang menggunakan mikrokontroller ATMega16 kemudian bahasa yang dipakai adalah C atau CV AVR, alat ini digunakan untuk monitoring BPM atau detak jantung kemudian jarak dan tekanan udara, sensor yang dipakai yaitu pulse sensor, sensor jarak SRF04 dan sensor MPX5700. data dari sensor tersebut dikirimkan ke HP android secara bersamaan lalu ditampilkan pada aplikasi android terkait 3 data sensor yang dikirimkan oleh mikrokontroller. media pengiriman menggunakan bluetooth HC05 untuk lebih jelasnya berikut adalah skema dan programnya.
a. Minimum System ATMega16
b. Sensor Jarak HC-SRF04
c. Sensor Tekanan MPX5700
d. Sensor BPM / Pulse Sensor
e. Bluetooth HC-05
f. Program Android
g. Program CV AVR
#include <mega16.h>
#include <stdio.h>
#include <delay.h>
#include <stdlib.h>
// Alphanumeric LCD Module functions
#include <alcd.h>
// Standard Input/Output functions
#include <stdio.h>
#define ADC_VREF_TYPE 0x40
#define ADC_VREF_TYPE 0x40
#define trigger1 PORTB.0
#define echo1 PINB.1
#define OUT 1
#define IN 0
int cacah;
int jarak;
int kpa;
int ok;
int mark;
int mark1;
int mark2;
int mark3;
int adcbpm;
char temp1[10];
char temp2[10];
char temp3[10];
char temp4[10];
int bpmxx;
char temp[10];
int bpmx;
float adcmpx, x, Vout, Tekanan_kpa;
char lcd[16];
unsigned int count1;
unsigned long sens1, waktu1;
unsigned char baris1[16];
// Read the AD conversion result
unsigned int read_adc(unsigned char adc_input)
{
ADMUX=adc_input | (ADC_VREF_TYPE & 0xff);
// Delay needed for the stabilization of the ADC input voltage
delay_us(10);
// Start the AD conversion
ADCSRA|=0x40;
// Wait for the AD conversion to complete
while ((ADCSRA & 0x10)==0);
ADCSRA|=0x10;
return ADCW;
}
// Declare your global variables here
void bpm(){
count1 = 0;
trigger1 = 0;
delay_us(10);
trigger1 = 1;
delay_us(20);
trigger1 = 0;
while(echo1 == 0) {};
while(echo1 == 1)
{
count1++;
}
waktu1=(count1*0.090422453703703703703703703703704);
sens1=((waktu1*0.3495)/2);
if((sens1 <= 10)&&(mark3 == 0)){
jarak++;
mark3 = 1;
}
if((sens1 > 10)&&(mark3 == 1)){
mark3 = 0;
}
lcd_gotoxy(0,1);
sprintf(baris1,"J= %3d",sens1);
lcd_puts(baris1);
itoa(jarak,temp4);
lcd_gotoxy(14,1);
lcd_puts(temp4);
adcmpx = read_adc(0);
Vout = (float)(adcmpx*5.0)/1023.0;
Tekanan_kpa = (float)((Vout/5)-0.04)/0.0012858;
if((Tekanan_kpa >= 109)&&(mark2 == 0)){
kpa++;
mark2 = 1;
}
if((Tekanan_kpa < 109)&&(mark2 == 1)){
mark2 = 0;
}
ftoa(Tekanan_kpa,1,temp);
lcd_gotoxy(0,0);
lcd_putsf("kpa= ");
lcd_puts(temp);
itoa(kpa,temp3);
lcd_gotoxy(13,0);
lcd_puts(temp3);
adcbpm = read_adc(1);
delay_ms(200);
if((adcbpm >= 400)&&(mark == 0)){
bpmx++;
mark = 1;
}
if((adcbpm < 400)&&(mark == 1)){
mark = 0;
}
itoa(bpmx,temp1);
lcd_gotoxy(11,0);
lcd_puts(temp1);
cacah++;
if(cacah < 25 ){
bpm();
}
if(cacah > 25 ){
bpmxx = bpmx * 12;
itoa(bpmxx,temp2);
lcd_gotoxy(7,1);
lcd_putsf("B=");
lcd_puts(temp2);
putchar('A|');
printf("%i",bpmxx);
putchar('|');
printf("%i",kpa);
putchar('|');
printf("%i",jarak);
bpmx = 0;
ok = 0;
cacah = 0;
jarak = 0;
kpa = 0;
}
}
void main(void)
{
// Declare your local variables here
// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTA=0x00;
DDRA=0x00;
// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=Out
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=0
PORTB=0x00;
DDRB=0x01;
// Port C initialization
// Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out
// State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=0 State0=0
PORTC=0x00;
DDRC=0xFF;
// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTD=0x00;
DDRD=0x00;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=0xFF
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 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: Timer2 Stopped
// Mode: Normal top=0xFF
// 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;
// USART initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART Receiver: On
// USART Transmitter: On
// USART Mode: Asynchronous
// USART Baud Rate: 9600
UCSRA=0x00;
UCSRB=0x18;
UCSRC=0x86;
UBRRH=0x00;
UBRRL=0x4D;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// ADC initialization
// ADC Clock frequency: 750.000 kHz
// ADC Voltage Reference: AVCC pin
// ADC Auto Trigger Source: Free Running
ADMUX=ADC_VREF_TYPE & 0xff;
ADCSRA=0xA4;
SFIOR&=0x1F;
// SPI initialization
// SPI disabled
SPCR=0x00;
// TWI initialization
// TWI disabled
TWCR=0x00;
// Alphanumeric LCD initialization
// Connections specified in the
// Project|Configure|C Compiler|Libraries|Alphanumeric LCD menu:
// RS - PORTC Bit 0
// RD - PORTC Bit 7
// EN - PORTC Bit 1
// D4 - PORTC Bit 2
// D5 - PORTC Bit 3
// D6 - PORTC Bit 4
// D7 - PORTC Bit 5
// Characters/line: 16
lcd_init(16);
while (1)
{
// Place your code here
delay_ms(3000);
lcd_clear();
bpm();
}
}
#include <stdio.h>
#include <delay.h>
#include <stdlib.h>
// Alphanumeric LCD Module functions
#include <alcd.h>
// Standard Input/Output functions
#include <stdio.h>
#define ADC_VREF_TYPE 0x40
#define ADC_VREF_TYPE 0x40
#define trigger1 PORTB.0
#define echo1 PINB.1
#define OUT 1
#define IN 0
int cacah;
int jarak;
int kpa;
int ok;
int mark;
int mark1;
int mark2;
int mark3;
int adcbpm;
char temp1[10];
char temp2[10];
char temp3[10];
char temp4[10];
int bpmxx;
char temp[10];
int bpmx;
float adcmpx, x, Vout, Tekanan_kpa;
char lcd[16];
unsigned int count1;
unsigned long sens1, waktu1;
unsigned char baris1[16];
// Read the AD conversion result
unsigned int read_adc(unsigned char adc_input)
{
ADMUX=adc_input | (ADC_VREF_TYPE & 0xff);
// Delay needed for the stabilization of the ADC input voltage
delay_us(10);
// Start the AD conversion
ADCSRA|=0x40;
// Wait for the AD conversion to complete
while ((ADCSRA & 0x10)==0);
ADCSRA|=0x10;
return ADCW;
}
// Declare your global variables here
void bpm(){
count1 = 0;
trigger1 = 0;
delay_us(10);
trigger1 = 1;
delay_us(20);
trigger1 = 0;
while(echo1 == 0) {};
while(echo1 == 1)
{
count1++;
}
waktu1=(count1*0.090422453703703703703703703703704);
sens1=((waktu1*0.3495)/2);
if((sens1 <= 10)&&(mark3 == 0)){
jarak++;
mark3 = 1;
}
if((sens1 > 10)&&(mark3 == 1)){
mark3 = 0;
}
lcd_gotoxy(0,1);
sprintf(baris1,"J= %3d",sens1);
lcd_puts(baris1);
itoa(jarak,temp4);
lcd_gotoxy(14,1);
lcd_puts(temp4);
adcmpx = read_adc(0);
Vout = (float)(adcmpx*5.0)/1023.0;
Tekanan_kpa = (float)((Vout/5)-0.04)/0.0012858;
if((Tekanan_kpa >= 109)&&(mark2 == 0)){
kpa++;
mark2 = 1;
}
if((Tekanan_kpa < 109)&&(mark2 == 1)){
mark2 = 0;
}
ftoa(Tekanan_kpa,1,temp);
lcd_gotoxy(0,0);
lcd_putsf("kpa= ");
lcd_puts(temp);
itoa(kpa,temp3);
lcd_gotoxy(13,0);
lcd_puts(temp3);
adcbpm = read_adc(1);
delay_ms(200);
if((adcbpm >= 400)&&(mark == 0)){
bpmx++;
mark = 1;
}
if((adcbpm < 400)&&(mark == 1)){
mark = 0;
}
itoa(bpmx,temp1);
lcd_gotoxy(11,0);
lcd_puts(temp1);
cacah++;
if(cacah < 25 ){
bpm();
}
if(cacah > 25 ){
bpmxx = bpmx * 12;
itoa(bpmxx,temp2);
lcd_gotoxy(7,1);
lcd_putsf("B=");
lcd_puts(temp2);
putchar('A|');
printf("%i",bpmxx);
putchar('|');
printf("%i",kpa);
putchar('|');
printf("%i",jarak);
bpmx = 0;
ok = 0;
cacah = 0;
jarak = 0;
kpa = 0;
}
}
void main(void)
{
// Declare your local variables here
// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTA=0x00;
DDRA=0x00;
// Port B initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=Out
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=0
PORTB=0x00;
DDRB=0x01;
// Port C initialization
// Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out
// State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=0 State0=0
PORTC=0x00;
DDRC=0xFF;
// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTD=0x00;
DDRD=0x00;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=0xFF
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 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: Timer2 Stopped
// Mode: Normal top=0xFF
// 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;
// USART initialization
// Communication Parameters: 8 Data, 1 Stop, No Parity
// USART Receiver: On
// USART Transmitter: On
// USART Mode: Asynchronous
// USART Baud Rate: 9600
UCSRA=0x00;
UCSRB=0x18;
UCSRC=0x86;
UBRRH=0x00;
UBRRL=0x4D;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// ADC initialization
// ADC Clock frequency: 750.000 kHz
// ADC Voltage Reference: AVCC pin
// ADC Auto Trigger Source: Free Running
ADMUX=ADC_VREF_TYPE & 0xff;
ADCSRA=0xA4;
SFIOR&=0x1F;
// SPI initialization
// SPI disabled
SPCR=0x00;
// TWI initialization
// TWI disabled
TWCR=0x00;
// Alphanumeric LCD initialization
// Connections specified in the
// Project|Configure|C Compiler|Libraries|Alphanumeric LCD menu:
// RS - PORTC Bit 0
// RD - PORTC Bit 7
// EN - PORTC Bit 1
// D4 - PORTC Bit 2
// D5 - PORTC Bit 3
// D6 - PORTC Bit 4
// D7 - PORTC Bit 5
// Characters/line: 16
lcd_init(16);
while (1)
{
// Place your code here
delay_ms(3000);
lcd_clear();
bpm();
}
}
h. VIDEO HASILNYA
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