kohei oikawa
2017.11伊豆大島共同打ち上げ実験の開放用プログラム
Dependencies: BMP180 MPU6050 mbed
Fork of
Sample_BMP180
by 
CORE
Revision 0:0ff20d8e9090, committed 2016-06-07
- Comitter:
- mikawataru
- Date:
- Tue Jun 07 05:17:35 2016 +0000
- Child:
- 1:b9ea35d93329
- Commit message:
- sample of using BMP180
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/BMP180.lib Tue Jun 07 05:17:35 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/spiridion/code/BMP180/#072073c79cfd
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Jun 07 05:17:35 2016 +0000
@@ -0,0 +1,32 @@
+#include "mbed.h"
+#include "math.h"
+#include "BMP180.h"
+#define p0 1013.25f//海面気圧
+
+DigitalOut myled(LED1);
+Serial pc(USBTX,USBRX);
+BMP180 bmp(PB_7, PB_6);
+Timer timer;
+
+float getAlt(float press, float temp);
+
+int main() {
+ float pressure,temperature,altitude;
+ float time;
+ bmp.Initialize(64,BMP180_OSS_ULTRA_LOW_POWER);
+ pc.printf("time, temperature ,pressure, altitude\r\n");
+ timer.start();
+
+ while(1) {
+ bmp.ReadData(&temperature,&pressure);
+ altitude = getAlt(pressure,temperature);
+ time = timer.read();
+ pc.printf("%f, %f, %f, %f \r\n",time, temperature, pressure, altitude);
+ myled =! myled;
+ wait(1);
+ }
+}
+
+float getAlt(float press, float temp){
+ return (pow((p0/press), (1.0f/5.257f))-1.0f)*(temp+273.15f)/0.0065f;
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Jun 07 05:17:35 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/6c34061e7c34 \ No newline at end of file