Akshay Kulkarni
/
temperature_based_fan_control
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frdm_Grove_PIR_Example
by 
NXP
Revision 1:5c2fc62b9c0a, committed 2016-05-07
- Comitter:
- Akshayiupui
- Date:
- Sat May 07 01:27:48 2016 +0000
- Parent:
- 0:d444f103013a
- Commit message:
- Temperature sensor application as an temperature based fan control with the help of FRDM-K64F board.
Changed in this revision
| DHT.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 |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/DHT.lib Sat May 07 01:27:48 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Wimpie/code/DHT/#9b5b3200688f
--- a/main.cpp Thu Dec 31 23:29:45 2015 +0000
+++ b/main.cpp Sat May 07 01:27:48 2016 +0000
@@ -1,25 +1,28 @@
+
#include "mbed.h"
-
-InterruptIn motion(D2);
-
-int motion_detected = 0;
-
-void irq_handler(void)
+#include "DHT.h"
+
+DHT sensor(D4, DHT11);
+DigitalOut vcc(PTA1);
+int main()
{
- motion_detected = 1;
-}
-
-int main(void)
-{
- int cnt = 0;
- motion.rise(&irq_handler);
-
+ int error = 0;
+ float h = 0.0f, c = 0.0f, dp = 0.0f, dpf = 0.0f;
+
while(1) {
- if(motion_detected) {
- cnt++;
- motion_detected = 0;
- printf("Hello! I've detected %d times since reset\n", cnt);
- }
+ wait(2.0f);
+ error = sensor.readData();
+ if (0 == error) {
+ c = sensor.ReadTemperature(CELCIUS);
+ dp = sensor.CalcdewPoint(c, h);
+ dpf = sensor.CalcdewPointFast(c, h);
+ printf("Temperature in Celcius: %4.2f\n", c);
+ } else {
+ printf("Error: %d\n", error);
+ } while((int)c > 30){vcc=!vcc;}
+ while((int)c<30 ){vcc=0;}
}
}
+
+
\ No newline at end of file