LPS25H sample

Dependencies:   AQM0802 LPS25H mbed

See http://developer.mbed.org/users/yasuyuki/notebook/LPS25H/

Files at this revision

API Documentation at this revision

Comitter:
yasuyuki
Date:
Sun Oct 12 02:44:32 2014 +0000
Commit message:
first release

Changed in this revision

AQM0802.lib Show annotated file Show diff for this revision Revisions of this file
LPS25H.lib Show annotated file Show diff for this revision Revisions of this file
main.cpp Show annotated file Show diff for this revision Revisions of this file
mbed.bld Show annotated file Show diff for this revision Revisions of this file
diff -r 000000000000 -r f7ac3f4062cf AQM0802.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/AQM0802.lib	Sun Oct 12 02:44:32 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/yasuyuki/code/AQM0802/#6fa303916aa8
diff -r 000000000000 -r f7ac3f4062cf LPS25H.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LPS25H.lib	Sun Oct 12 02:44:32 2014 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/yasuyuki/code/LPS25H/#0d2babe81a04
diff -r 000000000000 -r f7ac3f4062cf main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Oct 12 02:44:32 2014 +0000
@@ -0,0 +1,71 @@
+//**********************
+// Barometer and Altimeter
+// LPS25H sample for mbed
+//
+// LPC1768 flash=512KB, ADC=12bits
+// LPC11U35 flash=64KB, ADC=10bits
+// Nucleo ADC=12bits
+//
+// (C)Copyright 2014 All rights reserved by Y.Onodera
+// http://einstlab.web.fc2.com
+//**********************
+#include "mbed.h"
+#include "AQM0802.h"
+#include "LPS25H.h"
+
+#if defined(TARGET_LPC1768)
+I2C i2c(p28,p27);
+#endif
+// for TG-LPC11U35-501
+#if defined(TARGET_LPC11U35_501)
+I2C i2c(P0_5,P0_4);
+#endif
+// for Nucleo
+#if defined(TARGET_NUCLEO_F401RE)
+I2C i2c(D14,D15);
+#endif
+
+AQM0802 lcd(i2c);
+LPS25H lps25h(i2c);
+
+#define T0  288.15
+#define dT  0.0065
+#define P0  101325.0
+#define g   9.80665
+#define R   287.052
+double GetAltitude(double p, double t){
+
+    return (t+273.15)/dT*(pow((P0/p),dT*R/g)-1);
+
+}
+
+int main() {
+    
+    char msg[10];
+    int p, t, a;
+
+    sprintf(msg,"Barometer");
+    lcd.locate(0,0);
+    lcd.print(msg);
+    sprintf(msg,"Altimeter");
+    lcd.locate(0,1);
+    lcd.print(msg);
+    wait(1);
+      
+    while(1) {
+
+        p = (double)lps25h.pressure()/40.96;
+        t = 42.5 + (double)lps25h.temperature()/480.0;
+        a = GetAltitude(p,t);
+
+        sprintf(msg,"%6dPa",p);
+        lcd.locate(0,0);
+        lcd.print(msg);
+        sprintf(msg,"%4dm%2dC", a, t);
+        lcd.locate(0,1);
+        lcd.print(msg);
+        wait(1);
+    }
+
+}
+
diff -r 000000000000 -r f7ac3f4062cf mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sun Oct 12 02:44:32 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/552587b429a1
\ No newline at end of file