Diff: HDC1050.cpp

Revision:

0:771ed287f6a8

Child:

1:db08a3faa811

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HDC1050.cpp	Sat Jul 08 17:56:35 2017 +0000
@@ -0,0 +1,119 @@
+#include"mbed.h"
+#include"HDC1050.h"
+
+//Serial pc(USBTX, USBRX); //tx, rx
+
+myHDC1050::myHDC1050(I2C &i2cBus){
+    i2c = &i2cBus;
+    i2c->frequency(400000);
+}
+
+void myHDC1050::setup(int i)
+{
+    reg = check_reg;
+    char cmd[3][2];
+    cmd[0][0] = 0x10; cmd[0][1] = 0x00;
+    cmd[1][0] = 0x00; cmd[1][1] = 0x00;
+    cmd[1][0] = 0x03; cmd[3][1] = 0x00;
+    
+    i2c->write(SLV_WRITE, &reg, 1, true);
+    i2c->write(SLV_WRITE, cmd[i], 2, false);
+}
+    
+int myHDC1050::Connection_check()
+{
+    char reg = check_reg;
+    char check[2];
+    
+    i2c->write(SLV_WRITE,&reg,1);
+    i2c->read(SLV_READ,check,2);
+    
+    if(check[0] == 0x10 && check[1] == 0x50)return 0;
+    else return 1;
+
+}    
+
+void myHDC1050::get_temp_hum(float *temp, float *hum)
+{
+    char reg = Temperature_reg;
+    char buff[4];
+    unsigned int val[4];
+    
+    setup(0);
+    
+    i2c->write(SLV_WRITE, &reg,1);
+    wait_ms(250);
+    i2c->read(SLV_READ, buff,4,false);
+    
+    val[0] = (unsigned int)buff[0] << 8;
+    val[1] = (unsigned int)buff[1];
+    val[2] = (unsigned int)buff[2] << 8;
+    val[3] = (unsigned int)buff[3];
+    
+    *temp = (float)(val[0] | val[1]);
+    *hum  = (float)(val[2] | val[3]);
+    
+    *temp = *temp*165.0/65536.0 - 40.0;
+    *hum = *hum*100.0/65536.0;
+
+}
+
+void myHDC1050::get_temp(float *temp)
+{
+    char reg = Temperature_reg;
+    char buff[2];
+    unsigned int val[2];     
+    
+    setup(1);
+       
+    i2c->write(SLV_WRITE, &reg,1);
+    wait_ms(130);
+    i2c->read(SLV_READ, buff, 2,false);
+    
+    val[0] = (unsigned int)buff[0] << 8;
+    val[1] = (unsigned int)buff[1];
+    
+    *temp = (float)(val[0] | val[1]);
+    *temp = *temp *165.0/65536.0 - 40.0;
+    
+}
+
+void myHDC1050::get_hum(float *hum)
+{
+    char reg = Humidity_reg;
+    char buff[2];
+    unsigned int val[2];
+    
+    setup(1);
+     
+    i2c->write(SLV_WRITE, &reg,1);
+    wait_ms(130);
+    i2c->read(SLV_READ, buff, 2,false);
+    
+    val[0] = (unsigned int)buff[0] << 8;
+    val[1] = (unsigned int)buff[1];
+    
+    *hum = (float)(val[0] | val[1]);
+    *hum = *hum*100.0/65536.0;
+
+}
+
+void myHDC1050::get_temp_hater(float *temp)
+{
+    char reg = Temperature_reg;
+    char buff[2];
+    unsigned int val[2];     
+    
+    setup(2);
+       
+    i2c->write(SLV_WRITE, &reg,1);
+    wait_ms(130);
+    i2c->read(SLV_READ, buff, 2,false);
+    
+    val[0] = (unsigned int)buff[0] << 8;
+    val[1] = (unsigned int)buff[1];
+    
+    *temp = (float)(val[0] | val[1]);
+    *temp = *temp *165.0/65536.0 - 40.0;
+    
+}