ivan fajar
/
bmp_baru
bmp
Revision 0:db75f53b7b2d, committed 2014-05-08
- Comitter:
- ivanff15
- Date:
- Thu May 08 13:32:00 2014 +0000
- Commit message:
- bmp;
Changed in this revision
diff -r 000000000000 -r db75f53b7b2d BMP085_2.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BMP085_2.lib Thu May 08 13:32:00 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/TakashiSasaki/code/BMP085_2/#f60b3e715089
diff -r 000000000000 -r db75f53b7b2d main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Thu May 08 13:32:00 2014 +0000 @@ -0,0 +1,54 @@ +#include "mbed.h" +#include "BMP085.h" +#include <stdio.h> + +#define Pu 76 //cmHg +#define Po 1009.789 + +float q=0.125,p=1.05728,r=10,k=0.10572799; + +float toPa(float data) +{ + float hasil; + hasil = data/100; + return hasil; +} + +Serial pc(USBTX,USBRX); +I2C i2c(p28,p27); +BMP085 alt_sensor(p28,p27); + +float tekanan,tekanan_filter; +float ketinggian; + +float average() +{ + float tekananx[50], rerata = 0; + + for (int i=0 ; i<50 ; i++) + { + tekananx[i]=alt_sensor.get_pressure(); + rerata = rerata +tekananx[i]; + } + rerata = rerata / 50; + return rerata; +} + +int main() +{ + pc.baud(57600); + while(1) + { + alt_sensor.update(); + tekanan=alt_sensor.get_pressure(); + p=p+q; + k=p/(p+r); + tekanan_filter=tekanan_filter+k*(tekanan-tekanan_filter); + ketinggian = 44330*(1.0-pow(tekanan_filter/Po,0.1903)); + p=(1-k)*p; + //ketinggian=alt_sensor.get_altitude_m(); + //pc.printf("%f||%f\n",ketinggian,tekanan); + pc.printf("%f||%f\n",tekanan,ketinggian); + wait_ms(100); + } +} \ No newline at end of file
diff -r 000000000000 -r db75f53b7b2d mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Thu May 08 13:32:00 2014 +0000 @@ -0,0 +1,1 @@ +http://world3.dev.mbed.org/users/mbed_official/code/mbed/builds/824293ae5e43 \ No newline at end of file