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bmp180 sensorini Arduino-ga ulash
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| bet | 2/7 | | Sana | 26.12.2023 | | Hajmi | 1,87 Mb. | | #128572 |
Bog'liq 1ASHTTAI@13-14-15333
Ushbu mashg’ulot uchun sizga quidagilar kerak bo'ladi:
Arduino Uno / Arduino Nano / Arduino Mega;
bosim sensori BMP180 (GY-68);
LCD 1602 displey;
"ota-ona" simlari.
13.4-rasm. bmp180 bosim sensorini arduinoga qanday ulash mumkin
BMP180 (GY-68)
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Arduino Uno
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Arduino Nano
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Arduino Mega
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GND
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GND
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GND
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GND
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VIN
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5V
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5V
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5V
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SDA
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A4
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A4
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yigirma
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SCL
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A5
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A5
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21
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Arduino mikrokontrolleriga ulanish I2C interfeysi orqali amalga oshiriladi. SCL / SDA kontaktlari va modul quvvat manbai kontaktlar guruhiga ulangan. Bundan tashqari, sensor bilan ishlash uchun modul bilan ishlashni soddalashtirish imkonini beruvchi BMP180 Breakout Arduino kutubxonasini o‘rnatish kerak bo‘ladi. bmp180 (bmp080) va gy-68 uchun buyruqlar bir xil, shuning uchun kutubxona barcha sanab o'tilgan barometrlar uchun ishlaydi.
#include "Wire.h"
#include "SFE_BMP180.h"
SFE_BMP180 pressure; // yaratish bosim ob'ekti
#define ALTITUDE 1655.0 // SparkFun Kolorado ofisining balandligi metrda
void setup(){
Serial.begin(9600); // port monitorini ishga tushiring
pressure.begin(); // bosim sensorini ishga tushiring
}
void loop(){
char status;
double T,P,p0,a; // aniq o'lchash uchun siz balandlikni bilishingiz kerak
Serial.println (); // bu misolda ALTITUDE doimiysi ishlatiladi
Serial.print ( "ko'rsatilgan balandlik:" );
Serial.print (ALTITUDE, 0);
Serial.println ( “ metr ” ); // bosimni o'lchashdan oldin siz haroratni bilishingiz kerak
status = pressure.startTemperature();
if (status != 0){
delay(status);
// haroratni o'lchash natijasi T o'zgaruvchisida saqlanadi
status = pressure.getTemperature(T);
if (status != 0){
Serial.print("temperature: ");
Serial.print(T,2);
Serial.println(" deg C"); // bosim o'lchashni boshlash
status = pressure.startPressure(3);
if (status != 0){
delay(status);
status = pressure.getPressure(P,T);
if (status != 0){
Serial.print("absolute pressure: ");
Serial.print(P,2);
Serial.print(" mb, ");
Serial.print(P*0.0295333727,2);
Serial.println(" inHg");
// bmp180 sensori balandlikka bog'liq bo'lgan mutlaq bosimni qaytaradi
// parametrlar: P = mb dagi mutlaq bosim, ALTITUDE = joriy balandlik
// natija: p0 = dengiz sathining mbardagi kompensatsiyalangan bosimi
p0 = pressure.sealevel(P,ALTITUDE);
Serial.print("relative (sea-level) pressure: ");
Serial.print(p0,2);
Serial.print(" mb, ");
Serial.print(p0*0.0295333727,2);
Serial.println(" inHg");}
else Serial.println("error retrieving pressure measurement\n");}
else Serial.println("error starting pressure measurement\n");}
else Serial.println("error retrieving temperature measurement\n");}
else Serial.println("error starting temperature measurement\n");
delay(5000); }
№14. AMALIY MASHG’ULOT
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