Diff: 3.cpp

Revision:

0:04ec3b386f53

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/3.cpp	Thu Oct 12 14:45:41 2017 +0000
@@ -0,0 +1,78 @@
+//Assignment 3
+//Jake Bonney
+//OCE 360
+
+//Display temp sensor output to serial terminal connection in Fahrenheit
+//Turn on leds for specific temperature outputs
+
+#include "mbed.h"
+
+Serial pc(USBTX, USBRX); //serial connection
+AnalogIn TMP36(p15); // Temp sensor
+DigitalOut myled1(LED1); //internal led
+DigitalOut myled2(LED2); //internal led
+DigitalOut myled3(LED3); //internal led
+DigitalOut myled4(LED4); //internal led
+PwmOut red_led(p21);
+BusOut Seg1(p5,p6,p7,p8,p9,p10,p11,p12); // ABCDEFGDP 7 segment display
+
+int main() {
+    float tempC, tempF;
+ 
+    while(1) {
+        //conversion to degrees C celcius from TMP36 output
+        tempC = (((TMP36*3.3)*30.0)-15.0);
+        //convert to degrees F fahrenheit
+        tempF = (9.0*tempC)/5.0 + 32.0;
+        //print current temp to serial output
+        printf("%5.2F C %5.2F F \n\r", tempC, tempF);
+        wait(.5);
+        
+        if (tempF <=30){
+            //tempF is below 0...no internal leds on
+            myled1=0;
+            myled2=0;
+            myled3=0;
+            myled4=0;
+            Seg1=0x3F; // 00111111 binary LEDs to '0'
+            red_led.write(0.0f);
+            }
+            else if (tempF > 30 and tempF <= 50){
+                //tempF is between 0 and 30...led1 is on
+                myled1=1;
+                myled2=0;
+                myled3=0;
+                myled4=0;
+                Seg1=0x06; // 00000110 binary LEDs to '1'
+                red_led.write(0.25f);
+            }
+            else if (tempF > 50 and tempF <= 70){
+                //tempF is between 30 and 60...leds 1/2 are on
+                myled1=1;
+                myled2=1;
+                myled3=0;
+                myled4=0;
+                Seg1=0x5B; // 01011011 binary LEDs to '2'
+                red_led.write(0.5f);
+            }
+            else if (tempF > 70 and tempF <= 90){
+                //tempF is between 60 and 100...leds 1/2/3 are on
+                myled1=1;
+                myled2=1;
+                myled3=1;
+                myled4=0;
+                Seg1=0x4F; // 01001111 binary LEDs to '3'
+                red_led.write(0.75f);
+                
+            }
+            else if (tempF > 90){
+                //tempF is greater than 100...all leds are on
+                myled1=1;
+                myled2=1;
+                myled3=1;
+                myled4=1;
+                Seg1=0x66; // 01100110 binary LEDs to '4'
+                red_led.write(1.0f);
+            }
+ }
+}
\ No newline at end of file