Diff: main.cpp

Revision:

2:95f72e92b370

Parent:

1:5ceaf94b79e4

Child:

3:89e7deacb0c1

--- a/main.cpp	Sat Nov 21 05:32:38 2020 +0000
+++ b/main.cpp	Mon Nov 23 21:23:07 2020 +0000
@@ -1,50 +1,123 @@
 #include "mbed.h"
 #include "uLCD_4DGL.h"
 #include "PinDetect.h"
+#include "rtos.h"
+#include "Servo.h"
 
 uLCD_4DGL uLCD(p9,p10,p11); // serial tx, serial rx, reset pin;
+Serial pc(USBTX, USBRX); // tx, rx
 
-PinDetect button(p7,PullDown);
+// pb
+PinDetect button1(p7,PullDown);
+PinDetect button2(p8,PullDown);
+
+// sensors
 AnalogIn waterSensor(p20);
 AnalogIn moistureSensor(p19);
 AnalogIn lightSensor(p18);
-Serial pc(USBTX, USBRX); // tx, rx
+
+// outputs
 PwmOut speaker(p21);
 PwmOut led(p22);
-PwmOut warningLight(LED1);
+PwmOut led1(LED1);
+// motors
+Servo Shade(p23);
+Servo Pipe(p24);
+
 
-int led_flip = 1;
+Mutex myMut;
+volatile int button1_push = 0;
+volatile int button2_push = 0;
+volatile float setWaterLevel = 0.5;
+volatile float setMositLevel = 0.5;
+volatile float setLightLevel = 0.5;
+volatile float ShadePosition = 0.0;
+volatile float ShadePosition = 0.0;
+
+volatile int counting = 0; // keep track of how many seconds has passed
+
+// sensor readings
+volatile float water = 0.0;
+volatile float light = 0.0;
+volatile float moist = 0.0;
+
+// callback functinos for 2 pushbuttons
+void Button1_Callback (void) {button1_push = 1;}
+void Button2_Callback (void) {button2_push = 1;}
 
-void Button_Callback (void) {
-    
+// function for the buttons thread: adjust pre-set light levels
+void buttons_function(void const *argument){
+    while(1){
+        if (button1_push && button2_push)
+        {
+            uLCD.cls();
+            uLCD.printf("DON'T PRESS THE BUTTON AT THE SAME TIME!\n\r");
+            button1_push = button2_push = 0;
+            uLCD.cls();
+        }
+        if (button1_push)
+        {
+            setLightLevel -= .1;
+            button1_push = 0;
+        }
+        if (button2_push)
+        {
+            setLightLevel += .1;
+            button2_push = 0;
+        }
+        if (setLightLevel<0) setLightLevel = 0;
+        if (setLightLevel>1) setLightLevel = 1;
+
+        myMut.lock();
+        uLCD.locate(0,10);
+        uLCD.printf("SetLightLevel: %1.1f\n\r", setLightLevel);
+        myMut.unlock();
+        Thread::wait(500);
+    }    
 }
 
+// move the servos, also light an LED
+void motors_function(void const *argument){
+    while(1){
+        shadePosition = 1-light; // raise the shade when light 
+        Shade = shadePosition);
+        led.write(shadePosition)
+        
+        pipePosition = soil<0.6? 1:0;
+        pipe = pipePosition;
+        Thread::wait(1000);
+    }
+}    
+
 int main() {
     uLCD.printf("\n\rstart printing\n");
-    wait(1);
-    int counting = 0;
-    float water = 0.0;
-    float light = 0.0;
-    float moist = 0.0;
-    speaker.period(1.0/2000.0);
-    
-    button.attach_deasserted(&Button_Callback);
-    button.setSampleFrequency();
+    uLCD.cls();
+    speaker.period(1.0/800.0);
+
+    button1.attach_deasserted(&Button1_Callback);
+    button1.setSampleFrequency();
+    button2.attach_deasserted(&Button2_Callback);
+    button2.setSampleFrequency();
+
+    Thread buttons(buttons_function);
+    Thread motors(motors_function);
 
     while(1) {
         water = waterSensor.read();
         moist = moistureSensor.read();
         light = lightSensor.read();
-        uLCD.cls();
+        myMut.lock();
+        uLCD.locate(0,2);
         uLCD.printf("%d:\n\r",counting);
-        uLCD.printf("%f water\n\r",water);
-        uLCD.printf("%f moist\n\r",moist);
-        uLCD.printf("%f light\n\r",light);
+        uLCD.printf("water: %f\n\r",water);
+        uLCD.printf("moist: %f\n\r",moist);
+        uLCD.printf("light: %f\n\r",light);
+        myMut.unlock();
         counting++;
-        
-        if (light<0.1){led.write(1-light);}
-        else{led = 0;}
-        
-        wait(1);
+         
+        // sound the alarm if water level too low
+        speaker = water<setWaterLevel? 0.5:0;
+    
+        Thread::wait(1000);
     }
-}
+}
\ No newline at end of file