Koos van der Wat
Software for wall mounted dew point sensor
Dependencies: mbed HYT Watchdog TextLCD
Revision 3:25b7f448750d, committed 2019-11-29
- Comitter:
- koosvanderwat
- Date:
- Fri Nov 29 10:18:58 2019 +0000
- Parent:
- 2:ad0b044d0a10
- Commit message:
- No changes
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/HYT.lib Fri Nov 29 10:18:58 2019 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/koosvanderwat/code/HYT/#2d50976e2506
--- a/TextLCD.lib Sat Dec 04 11:31:07 2010 +0000 +++ b/TextLCD.lib Fri Nov 29 10:18:58 2019 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/simon/code/TextLCD/#e4cb7ddee0d3 +http://mbed.org/users/simon/code/TextLCD/#308d188a2d3a
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Watchdog.lib Fri Nov 29 10:18:58 2019 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/koosvanderwat/code/Watchdog/#3036dfbb2ab7
--- a/main.cpp Sat Dec 04 11:31:07 2010 +0000
+++ b/main.cpp Fri Nov 29 10:18:58 2019 +0000
@@ -1,10 +1,134 @@
-// Hello World! for the TextLCD
-
#include "mbed.h"
#include "TextLCD.h"
+#include "HYT.h"
+#include "Watchdog.h"
-TextLCD lcd(p15, p16, p17, p18, p19, p20); // rs, e, d4-d7
+// Setup Hardware
+HYT SENSOR (D0,D1); //Nucleo (SDA,SCL) (D0,D1) (D4,D5)
+TextLCD lcd(D9, D6, D5, D4, D3, D2); // rs, e, d4-d7
+
+// Setup Watchdog
+Watchdog wd;
+
+//Define Pins
+AnalogOut AOUT(A3);
+DigitalOut my_led(LED1);
+DigitalOut Alarm_led(A7);
+
+//Setup Timer
+Ticker timeKeeping;
+
+//Setup Variables
+float Calibration = 0; // RH correction value
+float SetPoint = 5; // Max Dew Point in Celsius to trigger alarm.
+int Counter = 0;
+float RHValue = 0;
+float TempValue = 0;
+float A = 0;
+float DewPoint = -50;
+float sample = 0;
+float test = 0;
int main() {
- lcd.printf("Hello World!\n");
-}
+ //lcd.printf("Hello World5!\n");
+ Alarm_led=1;
+ //lcd.setBacklight(TextLCD::LightOn);
+ //lcd.setCursor(TextLCD::CurOff_BlkOff);
+ wd.Configure(4.0);
+
+ wait_ms(100);
+
+ lcd.printf("TegnonEfficiency\n");
+ lcd.locate(0,1);
+ lcd.printf("Dew Point Sensor\n");
+
+ wait_ms(1000);
+
+ lcd.cls();
+
+ lcd.printf("Dew Point:");
+ lcd.locate(0,1);
+ lcd.printf("RH:");
+ lcd.locate(8,1);
+ lcd.printf("T:");
+
+while(1) {
+ Counter = Counter + 1;
+ wait(1);
+ wd.Service();
+ my_led = !my_led;
+
+if(Counter == 10)
+{
+ lcd.cls();
+ lcd.printf("Dew Point:");
+ lcd.locate(0,1);
+ lcd.printf("RH:");
+ lcd.locate(8,1);
+ lcd.printf("T:");
+ Counter = 0;
+ }
+
+ if(DewPoint > SetPoint) {
+ Alarm_led = !Alarm_led;
+ } else {
+ Alarm_led=1;
+ }
+
+ SENSOR.MRCommand();
+ wait_ms(100);
+ SENSOR.DFCommand();
+ wait_ms(100);
+
+ RHValue = (SENSOR.humidity);
+ TempValue = (SENSOR.temperature);
+
+ if(RHValue > 1)
+ {
+
+ A = log( RHValue * 0.01 * pow(10, 7.5*TempValue/(237.2+TempValue) ) );
+ DewPoint = ( 23720 * A/(17.269-A))/100;
+
+ if(DewPoint < -50) {
+ DewPoint = -50;
+ }
+
+ if(DewPoint > 20) {
+ DewPoint = 20;
+ }
+
+ test = 0.01428728*DewPoint+0.714364;
+
+ lcd.locate(10,0);
+ lcd.printf(" ");
+ lcd.locate(10,0);
+ lcd.printf("%.1f%", DewPoint);
+ lcd.printf("C");
+ lcd.locate(3,1);
+ lcd.printf(" ");
+ lcd.locate(3,1);
+ lcd.printf("%.1f%", RHValue);
+ lcd.locate(10,1);
+ lcd.printf(" ");
+ lcd.locate(10,1);
+ lcd.printf("%.1f%", TempValue);
+ lcd.printf("C\n");
+
+ AOUT = 0.0142857142857143*DewPoint+0.7142857143;
+
+ }
+ else
+ {
+ AOUT = 0;
+ lcd.cls();
+ wait_ms(1000);
+ lcd.locate(0,0);
+ lcd.printf(" Sensor \n");
+ lcd.locate(0,1);
+ lcd.printf(" Error \n");
+ }
+
+ } // While(1)
+} //Void Main
+
+
--- a/mbed.bld Sat Dec 04 11:31:07 2010 +0000 +++ b/mbed.bld Fri Nov 29 10:18:58 2019 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/users/mbed_official/code/mbed/builds/e2ac27c8e93e +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file