Diff: main.cpp

Revision:

0:e43dcd4f2ed8

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Mar 10 18:26:48 2011 +0000
@@ -0,0 +1,70 @@
+// Hello World! for the TextLCD
+
+#include "mbed.h"
+#include "TextLCD.h"
+#include "TmpLM74.h"
+
+DigitalOut myled(LED1);
+
+//TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD20x4);    // rs, e, d4-d7
+//TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD16x2);    // rs, e, d4-d7
+TextLCD lcd(p15, p16, p17, p18, p19, p20, TextLCD::LCD20x2);    // rs, e, d4-d7
+Serial pc(USBTX, USBRX); // tx, rx
+
+TmpLM74 Temp74(p5, p6, p7, p8);         //  LM74 connected on:  mosi, miso, sclk, csLM74
+
+void showTemp74(void);
+
+int main() {
+
+    lcd.cls();
+    
+    wait(2);
+    lcd.locate(0,0);
+//  lcd.printf("Hello World12345678!");
+    lcd.printf("Hello World!");
+    
+    
+    pc.printf("HELLO!,  testing LM74 temperature sensor ...\n\r");
+    wait(2);
+    
+    lcd.locate(0,0);        //   locate(column,row)
+    lcd.printf("test LM74 tmp sensor");
+    lcd.locate(0,1);
+    lcd.printf("LM74temp = 110.8 *C ");
+    
+    wait(1);
+    
+    while(1) {
+
+        myled = !myled;
+        showTemp74();
+        wait(2);
+/*
+        myled = !myled;
+        showTemp74();
+        Temp74.shutLM74down();
+        wait(1);
+*/
+    }
+}
+//      ******************************************************************
+//      ******************************************************************
+
+void showTemp74(void){
+
+    float TempC = Temp74.readTemp();
+    lcd.locate(11,1);
+    lcd.printf("         ");
+    lcd.locate(11,1);
+    
+    pc.printf("Temperature = ");
+    if(TempC > MAX_LM74_TEMP) {
+        pc.printf(" ? *C\n", TempC);
+        lcd.printf(" ? *C", TempC);
+    } else {
+        pc.printf("%3.1f *C\n", TempC);
+        lcd.printf("%3.1f *C", TempC);
+    }
+}
+//      ******************************************************************