Revision 2:43ecb155d581, committed 2018-04-01

Comitter:

leeb

Date:

Sun Apr 01 18:07:51 2018 +0000

Parent:

1:404c34e19f93

Commit message:

Add I2C temp sensor

Changed in this revision

--- a/main.cpp	Mon Mar 02 20:12:10 2015 +0000
+++ b/main.cpp	Sun Apr 01 18:07:51 2018 +0000
@@ -10,7 +10,7 @@
  
 DigitalOut myled(LED1);
  
-Serial pc(SERIAL_TX, SERIAL_RX);
+//Serial pc(SERIAL_TX, SERIAL_RX);
  
 volatile char TempCelsiusDisplay[] = "+abc.dd C";
  
@@ -22,7 +22,7 @@
     int tempval;
     
     wait(3);
-    pc.printf("PumpHouse mcp9808 test! March 2, 2015  1450\n\r");
+    printf("PumpHouse mcp9808 test! March 2, 2015  1450\n\r");
     i2c.frequency(10000); // default is 100000
     
     /* Configure the Temperature sensor device MCP9808:
@@ -34,14 +34,14 @@
     data_write[2] = 0x00;  // config lsb
     int status = i2c.write(MCP9808_ADDR, data_write, 3, 0);
     if (status != 0) { // Error
-        pc.printf("  error status = 0x%08x\r\n", status);
+        printf("  error status = 0x%08x\r\n", status);
         while (1) {
             myled = !myled;
             wait(0.2);
         }
     }
  
-    pc.printf("enter forever loop\r\n");
+    printf("enter forever loop\r\n");
     while (1) {
         // Read temperature register
         data_write[0] = MCP9808_REG_TEMP;
@@ -50,16 +50,16 @@
  
  // check Ta vs Tcrit
         if((data_read[0] & 0x80)  == 0x80) {
-            pc.printf(" temp >= critical ");
+            printf(" temp >= critical ");
         }
         if((data_read[0] & 0x40) == 0x40) {
-            pc.printf("   temp > upper limit ");
+            printf("   temp > upper limit ");
         }
         if((data_read[0] & 0x20) == 0x20) {
-            pc.printf(" temp < lower limit  ");
+            printf(" temp < lower limit  ");
         }
         if(data_read[0] & 0xE0) {
-            pc.printf("\r\n");   
+            printf("\r\n");   
             data_read[0] = data_read[0] & 0x1F;  // clear flag bits
         }
         if((data_read[0] & 0x10) == 0x10) { 
@@ -96,7 +96,7 @@
         TempCelsiusDisplay[3] = ((tempval % 100) % 10) + 0x30;
  
         // Display result
-        pc.printf("temp = %s\r\n", TempCelsiusDisplay);
+        printf("temp = %s\r\n", TempCelsiusDisplay);
         myled = !myled;
         wait(1.0);
     }