yasuyuki onodera / AM2321

AM2321 library

Dependents:   mbed_AM2321_copy mbed_AM2321

See http://developer.mbed.org/users/yasuyuki/notebook/AM2321/

Files at this revision

API Documentation at this revision

Revision 1:39f20504d5c5, committed 2015-07-10

Comitter:
yasuyuki
Date:
Fri Jul 10 14:59:04 2015 +0000
Parent:
0:3656aea4e6f6
Commit message:
minus

Changed in this revision

AM2321.cpp Show annotated file Show diff for this revision Revisions of this file
AM2321.h Show annotated file Show diff for this revision Revisions of this file
typedef.h Show annotated file Show diff for this revision Revisions of this file 
diff -r 3656aea4e6f6 -r 39f20504d5c5 AM2321.cpp
--- a/AM2321.cpp	Wed Oct 08 02:48:36 2014 +0000
+++ b/AM2321.cpp	Fri Jul 10 14:59:04 2015 +0000
@@ -37,7 +37,7 @@
 
 }
 
-int AM2321::humidity()
+unsigned short AM2321::humidity()
 {
 
     // get hum
@@ -48,14 +48,18 @@
     
 }
 
-int AM2321::temperature()
+signed short AM2321::temperature()
 {
 
     // get temp
     get();
     temp.byte.HB=buf[4];
     temp.byte.LB=buf[5];
-    return temp.Val;
+    if(temp.Val&0x8000){
+        temp.Val&=0x7FFF;
+        temp.Val=0xFFFF-temp.Val+1;
+    }
+    return temp.S;
     
 }
 

diff -r 3656aea4e6f6 -r 39f20504d5c5 AM2321.h
--- a/AM2321.h	Wed Oct 08 02:48:36 2014 +0000
+++ b/AM2321.h	Fri Jul 10 14:59:04 2015 +0000
@@ -22,8 +22,8 @@
     AM2321 (I2C& p_i2c);
 
     void get();
-    int humidity();
-    int temperature();
+    unsigned short humidity();
+    signed short temperature();
 
 protected:
     
@@ -38,3 +38,4 @@
 #endif /* AM2321_H_ */
 
 
+

diff -r 3656aea4e6f6 -r 39f20504d5c5 typedef.h
--- a/typedef.h	Wed Oct 08 02:48:36 2014 +0000
+++ b/typedef.h	Fri Jul 10 14:59:04 2015 +0000
@@ -19,6 +19,7 @@
 {
     WORD Val;
     BYTE v[2];
+    signed short S;
     struct
     {
         BYTE LB;