Diff: SHT30DISB.cpp

Revision:

3:7e631c5756e2

Parent:

1:f70e671b008f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SHT30DISB.cpp	Wed Feb 01 18:36:34 2017 +0000
@@ -0,0 +1,74 @@
+
+
+#include "mbed.h"
+#include "SHT30DISB.h"
+
+
+SHT30DISB::SHT30DISB (PinName sda, PinName scl) : _i2c(sda, scl) {
+    init();
+}
+SHT30DISB::SHT30DISB (I2C& p_i2c) : _i2c(p_i2c) {
+    init();
+}
+
+void SHT30DISB::init(void)
+{
+    _i2c.frequency(400000);
+    buf[0]=0x2c;
+    buf[1]=0x06;
+    data_buf[6]= _i2c.write(SHT30DISB_ADDR,buf,2);
+    buf[0]=0x30;
+    buf[1]=0x66;
+    data_buf[7]= _i2c.write(SHT30DISB_ADDR,buf,2);
+    
+//    put(0x2C,0x06); //Config measurement
+//    put(0x30, 0x66); //Heat off
+    
+}
+void SHT30DISB::put(unsigned char a, unsigned char b)
+{
+    buf[0]=a;
+    buf[1]=b;
+    _i2c.write(SHT30DISB_ADDR, buf, 2);
+}
+
+
+void SHT30DISB::get(unsigned char a)
+{
+    buf[0] = a;
+    _i2c.write(SHT30DISB_ADDR, buf, 1, true); // no stop, repeated
+    _i2c.read(SHT30DISB_ADDR, buf, 1);
+
+}
+
+
+void SHT30DISB::readSensor()
+{
+//    data_buf[0]=_i2c.read(SHT30DISB_ADDR, SHT30DISB_DATA, 6, true); // no stop, repeated
+    buf[0]=0x2c;
+    buf[1]=0x06;
+   data_buf[0]=_i2c.write(0x8A, buf,2);
+    wait(.1);
+    data_buf[1]=_i2c.read(0x8A, SHT30DISB_DATA, 6, false); 
+
+}
+
+
+float SHT30DISB::cTemp(){
+    readSensor();
+    c_Temp = -45 + 175 * ((((SHT30DISB_DATA[0] * 256.0) + SHT30DISB_DATA[1])) / 65535.0);
+    return c_Temp;    
+}
+        
+float SHT30DISB::fTemp(){
+    f_Temp = 32 + 1.8 * cTemp();
+    return f_Temp;
+}
+    
+float SHT30DISB::humidity(){
+    humi = 100 * ((((SHT30DISB_DATA[3] * 256.0) + SHT30DISB_DATA[4])) / 65535.0);
+    return humi;
+}
+
+
+