Revision 10:398f62bb41f7, committed 2014-06-14

Comitter:

kenjiArai

Date:

Sat Jun 14 01:37:54 2014 +0000

Parent:

9:ce80da60884a

Child:

11:bccfd75e84a0

Commit message:

Barometer program / Step by step approach -> 4th step,; Added Humidity sensor RHT03 w/ existing Lib.

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RHT03.lib	Sat Jun 14 01:37:54 2014 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/tristanjph/code/RHT03/#153e20f26d54

--- a/main.cpp	Fri Jun 13 10:41:42 2014 +0000
+++ b/main.cpp	Sat Jun 14 01:37:54 2014 +0000
@@ -6,7 +6,7 @@
  *  http://www.page.sannet.ne.jp/kenjia/index.html
  *  http://mbed.org/users/kenjiArai/
  *      Created: June      13th, 2014
- *      Revised: June      13th, 2014
+ *      Revised: June      14th, 2014
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
  * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
@@ -15,6 +15,7 @@
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 #include "mbed.h"
+#include "RHT03.h" //Include neede to use the RHT03 lib
 
 #define DEBUG_L1       1        // 1=Debug, 0=Normal
 #define DEBUG_L2       1        // 1=Debug, 0=Normal
@@ -33,7 +34,8 @@
 AnalogIn    cds(dp11);          // Input / CDS data
 AnalogIn    vref(dp9);          // Input / Bandgap 2.5V
 AnalogIn    vol(dp10);          // Input / contrast volume
-Serial pc(dp16,dp15);
+RHT03       humtemp(dp26);      // RHT03 interface
+Serial      pc(dp16,dp15);
 
 typedef enum {CDS = 0, VREF, VOL} ADC_Select;
 
@@ -52,6 +54,9 @@
 extern uint32_t baro_pres_data;         // Barometer /normalized
 extern int16_t  baro_temp_data;
 
+//  Humidity Sensor
+float humidity_temp, humidity;
+
 // Cds GL5528 (Dark Resistance 1 Mohm type) SENBA OPTICAL & ELECTRONIC CO.,LTD.
 //      Table value referrence: http://homepage3.nifty.com/skomo/f35/hp35_20.htm
 const float lux_cds[CDS_TBL_SIZE][2] =
@@ -260,24 +265,39 @@
 }
 
 void adc_all_read( void){
-    av_cds = av_cds *0.5 + cds.read() * 0.5;
-    av_vref = av_vref *0.9 + vref.read() * 0.1;
-    av_vol = av_vol *0.2 + vol.read() * 0.8;
+    if ( av_cds == 0 ){
+        av_cds = cds.read();
+    } else {
+        av_cds = av_cds *0.5 + cds.read() * 0.5;
+    }
+    if ( av_vref == 0 ){
+        av_vref = vref.read();
+    } else {    
+        av_vref = av_vref *0.9 + vref.read() * 0.1;
+    }
+    if ( av_vol == 0 ){        
+        av_vol = vol.read();
+    } else {  
+        av_vol = av_vol *0.2 + vol.read() * 0.8;
+    } 
 }
 
-void adc_init( void){
-    analog_pwr = 1;
-    vref_pwr = 1;
-    wait(0.2);  
-    av_cds = cds.read();
-    av_vref = vref.read();
-    av_vol = vol.read();
-    wait(0.1);
-    adc_all_read();
-    wait(0.1);
-    adc_all_read();
-    analog_pwr = 0;
-    vref_pwr = 0;
+void hum_RHT03_read( void){
+    while (true){
+        if ( humtemp.readData() == RHT_ERROR_NONE ){ //Request data from the RHT03
+            break;
+        }
+    }
+    if ( humidity_temp == 0 ){
+        humidity_temp = humtemp.getTemperatureC();
+    } else {           
+        humidity_temp = humidity_temp * 0.9 + humtemp.getTemperatureC() * 0.1;
+    }
+    if ( humidity == 0 ){
+        humidity = humtemp.getHumidity();
+    } else {   
+        humidity = humidity * 0.9 + humtemp.getHumidity() * 0.1;
+    }
 }
 
 int main() {
@@ -285,8 +305,6 @@
 
     pc.baud(9600);
     pc.printf( "\r\nmbed LPC1114FN28 test program by JH1PJL created on "__DATE__"\r\n" );
-    // Initialize ADC
-    adc_init();
     // Initialize LCD
     lcd_init();
     contrast = 25;
@@ -301,8 +319,16 @@
     // Read BMP180 data / only once
     baro_rd_id();
     baro_rd_coefficient();
+    // Show initial screen
     wait(5.0);
+    // Initialize data
+    av_cds = 0;
+    av_vref = 0;
+    av_vol = 0;
+    humidity_temp = 0;
+    humidity = 0;
     while(1) {
+        //  ---------- Cds Sensor, Vref, Volume ---------------------------------------------------
         // Power on / Analog sensor
         analog_pwr = 1;
         vref_pwr = 1;
@@ -331,7 +357,8 @@
         lcd_setCursor(0, 1);    // 2nd line top
         sprintf( buf,"V: %1.3f ", cal_vcc );
         lcd_printStr(buf);
-        wait(4.0);
+        wait(2.0);
+        //  ---------- Barometer Sensor / BMP180 --------------------------------------------------
         baro_st_conv_temp();    // start temprerature measurment
         wait(0.25);       // wait for convertion
         baro_rd_temp();         // read it
@@ -353,11 +380,23 @@
              baro_pres_data / 100, ( baro_pres_data % 100 ) /10,
              baro_temp_data / 10, baro_temp_data% 10 );
         myled1 = 0;
-        wait(3.0);
+        wait(4.0);
+        //  ---------- Humidity Sensor / RHT03 ----------------------------------------------------
+        hum_RHT03_read();       // Read Humidity data then avaraging
+        lcd_setCursor(0, 0);    // 1st line top
+        dt = (uint16_t)(lux * 10);
+        //sprintf( buf,"l: %4.1f ", lux );
+        sprintf( buf,"H:  %2.1f ", humidity );
+        lcd_printStr(buf);
+        lcd_setCursor(0, 1);    // 2nd line top
+        sprintf( buf,"T: %\+-0.1f", humidity_temp );
+        lcd_printStr(buf);
+        myled1 = 1;
+        pc.printf( "Humid: %0.1f%cRH, Temp:%\+-0.1fdegC\r\n", humidity, '%', humidity_temp );        
+        myled1 = 0;  
+        wait(2.0);
 #if DEBUG_L2
         debug_port_check();
-#endif  // DEBUG_L2
-        wait(1.0);     
+#endif  // DEBUG_L2     
     }
 }
-