Revision 2:15a255321242, committed 2018-04-14

Comitter:

Camo330

Date:

Sat Apr 14 15:56:03 2018 +0000

Parent:

1:aedc2645d841

Child:

3:b348fbaadf02

Commit message:

This uses theSTM32L476VGTDI SCO KIT via the DHT11 sensor to read room temperature. The temperature can be read using Real Term or similar program.

Changed in this revision

--- a/main.cpp	Fri Apr 21 07:02:29 2017 +0000
+++ b/main.cpp	Sat Apr 14 15:56:03 2018 +0000
@@ -1,15 +1,24 @@
 #include "mbed.h"
 #include "DHT.h"
 
-#define   DHT_DATA_PIN  D4
+
+//  STM32L476VGT DISCOVERY BOARD
+//  DHT11 SENSOR RUNNING FROM 3V3 SUPPLY
+//  PULL DOWN WITH 10K RESISTOR
+//  DATA VIA THE PIN PA_0 
+//  COM PORT 4 AT 9600 BAUD
+
+
+#define   DHT_DATA_PIN  PA_0                        // sets pin PA_0 as data input
  
-DHT sensor(DHT_DATA_PIN, DHT11);                    //DHT(PinName pin, eType DHTtype)
+DHT sensor(DHT_DATA_PIN, DHT11);              
+      //DHT(PinName pin, eType DHTtype)
  
 int main()
 {
     int error = 0;
-    float h = 0.0f, c = 0.0f, f = 0.0f, k = 0.0f, dp = 0.0f, dpf = 0.0f;
- 
+   float h = 0.0f, c = 0.0f, f = 0.0f, k = 0.0f, dp = 0.0f, dpf = 0.0f;
+   
     while(1) 
     {
         wait(2.0f);                                 //wait 2 second
@@ -22,12 +31,14 @@
             h   = sensor.ReadHumidity();
             dp  = sensor.CalcdewPoint(c, h);
             dpf = sensor.CalcdewPointFast(c, h);
-            printf("Temperature in Kelvin: %4.2f, Celcius: %4.2f, Farenheit %4.2f\n", k, c, f);
-            printf("Humidity is %4.2f, Dewpoint: %4.2f, Dewpoint fast: %4.2f\n", h, dp, dpf);
+            printf("F: %4.2f, \r\n", f);            //prints temp in farenheit to Real Term
+ //           printf("H: %4.2f, \r\n", h);          //prints humidity to Real Term
+            printf(" \r\n ");                       //acts as empty line to space readings in Real Term
+            printf(" \r\n ");                       //acts as empty line to space readings in Real Term
         } 
         else                                        //case: error
         {
-            printf("Error: %d\n", error);
+            printf("Error: %d\r\n", error);         //prints error to Real Term when "if" criteria isn't satisfied
         }
     }
 }
\ No newline at end of file

--- a/mbed.bld	Fri Apr 21 07:02:29 2017 +0000
+++ b/mbed.bld	Sat Apr 14 15:56:03 2018 +0000
@@ -1,1 +1,1 @@
-http://mbed.org/users/mbed_official/code/mbed/builds/7cff1c4259d7
\ No newline at end of file
+http://mbed.org/users/mbed_official/code/mbed/builds/994bdf8177cb
\ No newline at end of file