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  • #include "driver/hdc1080.h"
    #include "arch.h"
    #if defined(MULTIPASS_ARCH_HAS_I2C) && !defined(DRIVER_SOFTI2C)
    #include "driver/i2c.h"
    #else
    #include "driver/soft_i2c.h"
    #endif
    
    float HDC1080::getTemp()
    {
    	txbuf[0] = 0x00;
    
    	i2c.xmit(address, 1, txbuf, 0, rxbuf);
    
    	arch.delay_ms(10);
    
    	i2c.xmit(address, 0, txbuf, 2, rxbuf);
    
    	return (((unsigned int)rxbuf[0] << 8) | rxbuf[1]) * .00251770019531250000 - 40.;
    }
    
    float HDC1080::getRH()
    {
    	txbuf[0] = 0x01;
    
    	i2c.xmit(address, 1, txbuf, 0, rxbuf);
    
    	arch.delay_ms(10);
    
    	i2c.xmit(address, 0, txbuf, 2, rxbuf);
    
    	return (((unsigned int)rxbuf[0] << 8) | rxbuf[1]) * .00152587890625000000;
    }
    
    unsigned int HDC1080::getManufacturerID()
    {
    	txbuf[0] = 0xfe;
    	i2c.xmit(address, 1, txbuf, 2, rxbuf);
    	return (unsigned int)rxbuf[0] << 8 | rxbuf[1];
    }
    
    void HDC1080::init()
    {
    	txbuf[0] = 0x02;
    	txbuf[1] = 0x08;
    	txbuf[2] = 0x00;
    	i2c.xmit(address, 3, txbuf, 0, rxbuf);
    	arch.delay_ms(15);
    }
    
    HDC1080 hdc1080;