Diff: main.cpp

Revision:

0:2fd314d76f37

Child:

1:1accd82f4281

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Apr 30 11:46:15 2015 +0000
@@ -0,0 +1,121 @@
+#include "mbed.h"
+#include "BMP180.h"
+#include "N5110.h"
+
+//    VCC,SCE,RST,D/C,MOSI,SCLK,LED
+N5110 lcd(p7,p8,p9,p10,p11,p13,p26);
+// Can also power (VCC) directly from VOUT (3.3 V) -
+// Can give better performance due to current limitation from GPIO pin
+
+BMP180 bmp180(p28,p27);   // SDA, SCL
+Serial serial(USBTX,USBRX);
+
+AnalogIn BUT1(p15);
+AnalogIn BUT2(p16);
+AnalogIn POT(p20);
+
+int nx=84;
+int ny=48;
+int i,j;
+
+void clearCells();
+
+void readTemp(){
+    while(1){
+        Measurement measurement;
+        clearCells();
+        char buffer1[14];
+        measurement = bmp180.readValues();
+        int length=sprintf(buffer1,"T = %.2f C",measurement.temperature);
+        if (length<=14){
+            lcd.printString(buffer1,10,2);
+        }
+        wait(2.0);
+    }
+}
+
+void readPress(){
+    while(1){
+        Measurement measurement;
+        clearCells();
+        char buffer2[14];
+        measurement = bmp180.readValues();
+        int length=sprintf(buffer2,"P = %.2f mb",measurement.pressure);
+        if (length<=14){
+            lcd.printString(buffer2,0,2);
+        }
+        wait(2.0);
+    }
+}
+
+void menu()
+{
+    while(1) {
+        lcd.normalMode(); //normal LCD colour mode
+        lcd.setBrightness(0.5); //LCD backlight set to 50% brightness
+        if (POT>(2.0/3.0)) {
+            clearCells();
+            lcd.printString("Temperature",10,1);
+            lcd.printString(">",80,2);
+            lcd.printString("Graph",0,5);
+            lcd.printString("Current",43,5);
+            if (BUT1>0.9) { //left button takes the user to the graph option
+                clearCells();
+                //tempGraph();
+            }
+            if (BUT2>0.9) { //right button takes the user to the current reading
+                clearCells();
+                readTemp();
+            }
+        }
+        if ((POT>1.0/3.0)&&(POT<2.0/3.0)) {
+            clearCells();
+            lcd.printString("Pressure",20,1);
+            lcd.printString("<",0,2);
+            lcd.printString(">",80,2);
+            lcd.printString("Graph",0,5);
+            lcd.printString("Current",43,5);
+            if (BUT1>0.9) {
+                clearCells();
+                //pressGraph();
+            }
+            if (BUT2>0.9) {
+                clearCells();
+                readPress();
+            }
+        }
+        if (POT<(1.0/3.0)) {
+            clearCells();
+            lcd.printString("Light",30,1);
+            lcd.printString("<",0,2);
+            lcd.printString("Graph",0,5);
+            lcd.printString("Current",43,5);
+            if (BUT1>0.9) {
+                clearCells();
+                //lightGraph();
+            }
+            if (BUT2>0.9) {
+                clearCells(); 
+                //readLight();
+            }
+        }
+    }
+}
+
+void clearCells ()
+{
+    //loop through cells and clear
+    for (int i=0; i<nx; i++) {
+        for (int j=0; j<ny; j++) {
+            lcd.clearPixel(i,j);
+        }
+    }
+    lcd.refresh (); //must refresh to write buffer to display
+}
+
+int main()
+{
+ lcd.init();
+ bmp180.init();
+ menu();
+}
\ No newline at end of file