Revision 2:804e04f4f217, committed 2016-09-01

Comitter:

Razorfoot

Date:

Thu Sep 01 08:12:24 2016 +0000

Parent:

1:059293827555

Commit message:

Door functionality added

Changed in this revision

diff -r 059293827555 -r 804e04f4f217 main.cpp
--- a/main.cpp	Wed Aug 10 03:22:58 2016 +0000
+++ b/main.cpp	Thu Sep 01 08:12:24 2016 +0000
@@ -2,50 +2,59 @@
 #include "mbed.h"
 #include "sx1276-inAir.h"
 
-#define STRING_LENGTH 10
+#define STRING_LENGTH 30
 #define SUPPLY_VOLTAGE 3.3
 
 Serial      pc(USBTX, USBRX);  //Create a serial connection to the PC
 AnalogIn    ain(PA_0);             //Configure pin PA0 as an analog input for the temperature sensor
-//DigitalIn     din(PC_7);         //Configure pin PC2 as a digital input for the reed switch
+//DigitalIn   din(PB_10);         //Configure pin PC2 as a digital input for the reed switch
+InterruptIn door(PB_10);
 
 float reading_float;
+bool reading_bool;
 
 //Return the temperature from the sensor, in degrees celsius
-float get_temp() {
+float getTemp() {
     float reading = ain.read();
     float output_voltage = reading * SUPPLY_VOLTAGE;
     return (output_voltage - 0.25) / 0.028;
 }
 
-/*//Return the state of the reed switch, as either true (ON) or false (OFF)
-bool get_reed_state() {
-    return din;
-}*/
+//Return the door state. If True, the door is closed. If False, the door is open.
+bool getDoorState() {
+    return door.read();
+}
+
+//Code that executes on a rising edge
+//For reasons unknown, this executes twice instead of once when the magnet connects
+//i.e. there are two falling edges. Could implement debouncing, but that takes effort
+void transmitDoorClosing() {
+    printf("The door has been closed\r\n");
+}
+
+//Code that executes on a falling edge
+void transmitDoorOpening() {
+    printf("The door has been opened\r\n");
+}
+
 
 int main() {
 
     //Configure the serial connection (baud rate = 19200, 8 data bits, 1 stop bit)
     pc.baud(9600);
     pc.format(8, SerialBase::None, 1);
+    
+    door.rise(transmitDoorClosing); //Rising edge occurs when the "door opens"
+    door.fall(transmitDoorOpening); //Falling edge occurs when the "door closes"
 
     while(1) {
 
-        char reading_string[10];
-        reading_float = get_temp();
-        sprintf(reading_string, "%.8f\r\n", reading_float);
-        pc.printf(reading_string);
-        //pc.printf("Temperature = %.2f \r\n\r\n", reading_float);
+        char reading_string[STRING_LENGTH];
+        reading_float = getTemp();
+        sprintf(reading_string, " Temp: %.8f\r\n", reading_float);
+        pc.printf("Temperature = %s\r\n", reading_string);
 
         wait_ms(500);
 
-        /*if (get_reed_state()) {
-            pc.printf("Reed switch is ON\r\n");
-        }
-        else {
-            pc.printf("Reed switch is OFF\r\n");
-        }
-        wait_ms(500);*/
-
     }
 }