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/*
* Copyright 2020 Birte Kristina Friesel
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "driver/hdc1080.h"
#include "arch.h"
#if defined(CONFIG_meta_driver_hardware_i2c)
#include "driver/i2c.h"
#elif defined(CONFIG_driver_softi2c)
#include "driver/soft_i2c.h"
#endif
void HDC1080::measure()
{
txbuf[0] = 0x00;
i2c.xmit(address, 1, txbuf, 0, rxbuf);
}
float HDC1080::getTemp()
{
txbuf[0] = 0x00;
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, 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::heater(bool on)
{
txbuf[0] = 0x02;
i2c.xmit(address, 1, txbuf, 2, rxbuf);
if (on) {
txbuf[1] = rxbuf[0] | (1<<5);
} else {
txbuf[1] = rxbuf[0] & ~(1<<5);
}
i2c.xmit(address, 2, txbuf, 0, rxbuf);
}
void HDC1080::init()
{
txbuf[0] = 0x02;
txbuf[1] = 0x00;
txbuf[2] = 0x00;
i2c.xmit(address, 3, txbuf, 0, rxbuf);
arch.delay_ms(15);
}
HDC1080 hdc1080;
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