Diff: HeptaTemp.cpp

Revision:

1:a23c2cd65379

Parent:

0:f74735cb01bc

Child:

2:de2e2a625a3b

diff -r f74735cb01bc -r a23c2cd65379 HeptaTemp.cpp
--- a/HeptaTemp.cpp	Thu Jul 20 02:15:14 2017 +0000
+++ b/HeptaTemp.cpp	Fri Jul 21 10:36:09 2017 +0000
@@ -8,7 +8,7 @@
 
 void HeptaTemp::temp_sense(float* temp)
 {
-    //resistance
+//resistance
     R1 = 2500;
     R2 = 2500;
     R3 = 110;
@@ -31,13 +31,12 @@
     //printf("%f\r\n",off);
 //temperature coefficient
     ce = 0.003851;
-
     float volt = (_pin.read())*3.3*(R_1 + R_2)/R_1;
     float Rth = (volt-off)/gain+R3;
     *temp = (Rth-Pt)/(ce*Pt);
-   /* printf("%f\r\n",volt);
-    printf("%f\r\n",Rth);
-    printf("%f\r\n",*temp);*/
+    /* printf("%f\r\n",volt);
+     printf("%f\r\n",Rth);
+     printf("%f\r\n",*temp);*/
     // delay some time before reading again
     wait(0.5);
 
@@ -55,4 +54,12 @@
     temp_u16[2]=temp2[0];
     temp_u16[3]=temp2[1];
     *dsize = 4;
+}
+
+void HeptaTemp::temp_sensing_vol(float* voltage)
+{
+    R_1 = 3;
+    R_2 = 2;
+    *voltage = (_pin.read())*3.3*(R_1 + R_2)/R_1;
+
 }
\ No newline at end of file