Project Autus - Automated Plant Chamber

Dependencies:   TextLCD mbed

Fork of keypad_test by Plamen Totev

Autus

This is the codebase accompanying the project Autus.

Autus is an automated growth chamber for plants.

Features

Control Humidity inside chamber wrt to external humidity. Control Temperature inside chamber. ( Peltier Heaters/Coolers ) Water and shower plants. Control soil humidity. Monitor water tanks level (Load Cell) /media/uploads/umairaftab/frdm_-_new_page1.png

Code Base Features

Fixed timing and CRC for DHT-11 Sensor. Fixed OneWire bug for ds18b20

Cyclic Executive Scheduler with Priority. Async IPC framework for PC App over bluetooth

Fake RTC systick, I was having some trouble with the on board rtc.

/media/uploads/umairaftab/download.png

Revision:
57:7ab93ed49b70
Parent:
56:d1e81ca74f22
--- a/main.cpp	Mon Apr 14 16:10:19 2014 +0000
+++ b/main.cpp	Mon Apr 14 19:18:14 2014 +0000
@@ -113,7 +113,7 @@
 
 void printer_print_values(){
     
-    printf("\r****Autus Sensor Values****\r");
+    //printf("\r****Autus Sensor Values****\r");
     wait(1);
     printer.printf("Chamber Temp: %4.2f\r",inside_temp);
     wait(1);
@@ -538,6 +538,7 @@
     lcd.cls();
     lcd.locate(0,0);
     lcd.printf("Watering Plants");
+    wait(1);
     
     waterplants();
     
@@ -688,6 +689,26 @@
         if(keypad_value == 78){
             printer_print_values();
         }
+        if(keypad_value ==86){
+            pumps(true,false,false,false);
+            wait(2);
+            pumps(false,false,false,false);
+        }
+        if(keypad_value ==80){
+            pumps(false,true,true,false);
+            wait(2);
+            pumps(false,false,false,false);
+        }
+        if(keypad_value ==83){
+            pumps(false,false,false,true);
+            wait(2);
+            pumps(false,false,false,false);
+        }
+        if(keypad_value ==77){
+            cycle_air_on();
+            wait(2);
+            cycle_air_off();
+        }
         //printf("%d\n\r",keypad_value);
         //  -> Key pressed
         
@@ -765,9 +786,20 @@
                  
                 float pelt_inside_temp =0;
                 bool exit_pelt = false;
+                float dsen_temp_out_prev=0;
                 pelt_inside_temp = get_air_temp_inside(0);
                 bool read_temp1_valid=false;
                 bool read_temp2_valid=false;
+                
+                while(!read_temp2_valid){
+                    readTemp(0);
+                    wait(0.1);
+                    if(temp>0){
+                        read_temp2_valid = true;
+                    }
+                }
+                //readTemp(0);
+                dsen_temp_out_prev=temp;
                 while (exit_pelt == false){
                     
                     pelt_inside_temp = get_air_temp_inside(0);
@@ -799,6 +831,7 @@
                         printf("Outside Temp:%2.1f\n\r",dsen_temp_out);
                     }
                     if (dsen_temp_in>=desire_temp) {
+                        
                         read_temp1_valid=false;
                         read_temp2_valid=false;
                         peltier(true,true,false,true,0);
@@ -829,7 +862,7 @@
                         lcd.locate(0,0);
                         lcd.printf("Pelt TEMP LIMIT");
                         lcd.locate(0,1);
-                        lcd.printf("Pi %2.1 Po%2.1f",dsen_temp_in,dsen_temp_out);
+                        lcd.printf("Pin:%2.1 Pout:%2.1f",dsen_temp_in,dsen_temp_out);
                         exit_pelt = true;
                         pelt_overheat = true;
                     }
@@ -838,7 +871,13 @@
                         lcd.locate(0,0);
                         lcd.printf("Air Temp %4.2f",pelt_inside_temp);
                         lcd.locate(0,1);
-                        lcd.printf("Pi%2.1f Po%2.1f",dsen_temp_in,dsen_temp_out);
+                        if(!(dsen_temp_out>0)){
+                            dsen_temp_out = dsen_temp_out_prev ;
+                        }
+                        else{
+                            dsen_temp_out_prev = dsen_temp_out ;
+                        }
+                        lcd.printf("Pin:%2.1f Pout:%2.1f",dsen_temp_in,dsen_temp_out);
                         printf("Pi%2.1f Po%2.1f\n\r",dsen_temp_in,dsen_temp_out);
                         wait(15);
                         if ( (pelt_inside_temp-5<=desire_temp_air) && (pelt_inside_temp+5>=desire_temp_air) ){