Diff: HDC1000.cpp

Revision:

0:82c214412005

Child:

1:45126276dbf3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HDC1000.cpp	Wed Jan 28 08:53:47 2015 +0000
@@ -0,0 +1,70 @@
+//**********************
+// HDC1000.cpp for mbed
+//
+// HDC1000 hdc1000(P0_5,P0_4);
+// or
+// I2C i2c(P0_5,P0_4);
+// HDC1000 hdc1000(i2c);
+//
+// (C)Copyright 2015 All rights reserved by Y.Onodera
+// http://einstlab.web.fc2.com
+//**********************
+
+#include "mbed.h"
+#include "HDC1000.h"
+
+HDC1000::HDC1000 (PinName sda, PinName scl) : _i2c(sda, scl) {
+    init();
+}
+HDC1000::HDC1000 (I2C& p_i2c) : _i2c(p_i2c) {
+    init();
+}
+
+
+void HDC1000::get()
+{
+    
+    // Trigger
+    buf[0] = 0x00;  // Pointer
+    _i2c.write(HDC1000_ADDR, buf, 1);
+
+    // Wait 6.35ms + 6.5ms
+    wait_ms(20);
+
+    // get data
+    _i2c.read( HDC1000_ADDR, buf, 4);
+
+}
+
+int HDC1000::humidity()
+{
+
+    // get hum
+    get();
+    hum.byte.HB=buf[2];
+    hum.byte.LB=buf[3];
+    return hum.Val;
+    
+}
+
+int HDC1000::temperature()
+{
+
+    // get temp
+    get();
+    temp.byte.HB=buf[0];
+    temp.byte.LB=buf[1];
+    return temp.Val;
+    
+}
+
+void HDC1000::init()
+{
+    // Set configuration
+    buf[0] = 0x02;  // Pointer
+    buf[1] = 0x10;  // High byte
+    buf[2] = 0x00;  // Low byte
+    _i2c.write(HDC1000_ADDR, buf, 3);
+}
+
+