Pada kesempatan yang berbahagia kali ini saya akan menjelaskan mengenai bagaimana cara memebuat sebuah alat yang memiliki 3 fungsi sekaligus yaitu sebagai pengukur heart beat atau BPM kemudian pengukur jarak dan pengukur tekanan paru-paru, sensor yang digunakan adalah pulse sensor, HC-SRF04 dan MPX5700AP. untuk mikrokontroller menggunakan Arduino dan penampil lcd sebagai user interfacenya, bahasa program yang digunakan adalah CV AVR atau codevision avr. untuk lebih jelasnya berikut adalah program dan skemanya.
a. Minimum System ATMega16
b. Sensor Pulse / Heart Beat
c. Sensor jarak HC-SRF04
d. Sensor Tekanan MPX5700AP
e. Program codevision AVR
/*****************************************************
This program was produced by the
CodeWizardAVR V2.05.0 Professional
Automatic Program Generator
© Copyright 1998-2010 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com
Project :
Version :
Date : 2/8/2017
Author : NeVaDa
Company :
Comments:
Chip type : ATmega16
Program type : Application
AVR Core Clock frequency: 12.000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 256
*****************************************************/
#include <mega16.h>
#include <stdio.h>
#include <delay.h>
#include <stdlib.h>
// Alphanumeric LCD Module functions
#include <alcd.h>
#define ADC_VREF_TYPE 0x40
#define trigger1 PORTB.0
#define echo1 PINB.1
#define OUT 1
#define IN 0
int cacah;
int ok;
int mark;
int adcbpm;
char temp1[10];
char temp2[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(){
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(10,1);
lcd_putsf("B=");
lcd_puts(temp2);
bpmx = 0;
ok = 0;
cacah = 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=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=In Func0=Out
// State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=T State0=0
PORTB=0x00;
DDRB=0xFD;
// 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
// USART disabled
UCSRB=0x00;
// 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)
{
adcmpx = read_adc(0);
Vout = (float)(adcmpx*5.0)/1023.0;
Tekanan_kpa = (float)((Vout/5)-0.04)/0.0012858;
ftoa(Tekanan_kpa,1,temp);
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);
lcd_gotoxy(0,1);
sprintf(baris1,"J= %3d",sens1);
lcd_puts(baris1);
lcd_gotoxy(0,0);
lcd_putsf("kpa= ");
lcd_puts(temp);
bpm();
delay_ms(5000);
lcd_clear();
}
}
This program was produced by the
CodeWizardAVR V2.05.0 Professional
Automatic Program Generator
© Copyright 1998-2010 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com
Project :
Version :
Date : 2/8/2017
Author : NeVaDa
Company :
Comments:
Chip type : ATmega16
Program type : Application
AVR Core Clock frequency: 12.000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 256
*****************************************************/
#include <mega16.h>
#include <stdio.h>
#include <delay.h>
#include <stdlib.h>
// Alphanumeric LCD Module functions
#include <alcd.h>
#define ADC_VREF_TYPE 0x40
#define trigger1 PORTB.0
#define echo1 PINB.1
#define OUT 1
#define IN 0
int cacah;
int ok;
int mark;
int adcbpm;
char temp1[10];
char temp2[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(){
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(10,1);
lcd_putsf("B=");
lcd_puts(temp2);
bpmx = 0;
ok = 0;
cacah = 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=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=In Func0=Out
// State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=T State0=0
PORTB=0x00;
DDRB=0xFD;
// 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
// USART disabled
UCSRB=0x00;
// 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)
{
adcmpx = read_adc(0);
Vout = (float)(adcmpx*5.0)/1023.0;
Tekanan_kpa = (float)((Vout/5)-0.04)/0.0012858;
ftoa(Tekanan_kpa,1,temp);
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);
lcd_gotoxy(0,1);
sprintf(baris1,"J= %3d",sens1);
lcd_puts(baris1);
lcd_gotoxy(0,0);
lcd_putsf("kpa= ");
lcd_puts(temp);
bpm();
delay_ms(5000);
lcd_clear();
}
}
f. VIDEO HASILNYA
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