Revision 2:3789998dde80, committed 2016-05-09

Comitter:

bonnyngangu

Date:

Mon May 09 12:17:15 2016 +0000

Parent:

1:dd5fb735acf1

Commit message:

Temperature reader with blinking LEDs.

Changed in this revision

diff -r dd5fb735acf1 -r 3789998dde80 N5110.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/N5110.lib	Mon May 09 12:17:15 2016 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/eencae/code/N5110/#ba8addc061ea

diff -r dd5fb735acf1 -r 3789998dde80 main.cpp
--- a/main.cpp	Fri Feb 05 17:25:03 2016 +0000
+++ b/main.cpp	Mon May 09 12:17:15 2016 +0000
@@ -1,18 +1,20 @@
 /* 
-
-2645_I2C_TMP102_Library
-
-Sample code from ELEC2645 Week 17 Lab
-
-Demonstrates how to re-factor the TMP102 code into a library
-
-(c) Craig A. Evans, University of Leeds, Feb 2016
+ Joystick_Project
+Bonny Ngangu
+6 March 2016
+(c) Bonny Ngangu, University of Leeds, Feb 2016
 
 */ 
 
 #include "mbed.h"
 // include the library header, ensure the library has been imported into the project
 #include "TMP102.h"
+#include "N5110.h"
+
+
+//Joystick direction tolerance altering 
+#define DIRECTION_TOLERANCE 0.1
+
 
 // Create TMP102 object
 TMP102 tmp102(I2C_SDA,I2C_SCL);  
@@ -23,6 +25,12 @@
 DigitalOut r_led(LED_RED);
 DigitalOut g_led(LED_GREEN);
 DigitalOut b_led(LED_BLUE);
+
+//         VCC,    SCE,   RST,   D/C,   MOSI,  SCLK,   LED
+N5110 lcd (PTE26 , PTA0 , PTC4 , PTD0 , PTD2 , PTD1 , PTC3);
+
+
+
 // K64F on-board switches
 InterruptIn sw2(SW2);
 InterruptIn sw3(SW3);
@@ -36,6 +44,8 @@
 
 int main()
 {
+    // first need to initialise display
+    lcd.init();
     // initialise the board and serial port
     init_K64F();
     init_serial(); 
@@ -44,12 +54,40 @@
     
     while (1) {
         
+        // these are default settings so not strictly needed
+        lcd.normalMode();      // normal colour mode
+        lcd.setBrightness(0.5); // put LED backlight on 50%
+
+        // can directly print strings at specified co-ordinates
+        lcd.printString("Current Temp",0,0);
+        
         // read temperature and print over serial port
         float T = tmp102.get_temperature();
         pc.printf("T = %f K\n",T);
+        
+        char buffer[14];  // each character is 6 pixels wide, screen is 84 pixels (84/6 = 14)
+        // so can display a string of a maximum 14 characters in length
+        // or create formatted strings - ensure they aren't more than 14 characters long
+        int length = sprintf(buffer,"T = %.2f C",T); // print formatted data to buffer
+        // it is important the format specifier ensures the length will fit in the buffer
+        if (length <= 14)  // if string will fit on display
+            lcd.printString(buffer,0,2);
+        
         // small delay - 1s to match the update rate of the sensor (1 Hz)
         wait(1.0);
         
+        if(T<27){
+            
+            g_led = 0;
+            lcd.printString("Fan OFF",0,4);
+        }
+        
+        if (T>=30){
+            
+            r_led = 0;
+            lcd.printString("Fan ON ",0,4);
+       }
+
     }
 
 }
@@ -70,5 +108,4 @@
     // resistors that are enabled by default using InterruptIn
     sw2.mode(PullNone);
     sw3.mode(PullNone);
-
 }