28 lines
1.1 KiB
C
28 lines
1.1 KiB
C
/** library to communicate with MLX90614 infra-red thermometer
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* @file
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* @author King Kévin <kingkevin@cuvoodoo.info>
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* @copyright SPDX-License-Identifier: GPL-3.0-or-later
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* @date 2020
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* @note peripherals used: GPIO @ref sensor_mlx90614_gpio, I2C @ref i2c_master_i2c
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* @note this library only uses the I²C interface, not the PWM output
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*/
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#pragma once
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/** setup I²C bus to communicated with MLX90614 Infra-Red thermometer
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* @param[in] slave_addr I²C slave address of MLX90614 device (least significant 7-bit, 0xff for default)
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* @return if the display setup is successful, else the display is probably not on the I²C bus
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* @warning only one display on the I²C bus is currently supported
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* @note I²C frequency is 100 kHz
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*/
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bool sensor_mlx90614_setup(uint8_t slave_addr);
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/** get ambient temperature of sensor
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* @return ambient temperature in °C
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* @note uses internal thermistor
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*/
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float sensor_mlx90614_temperature_ambient(void);
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/** get measured object temperature
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* @return object temperature in °C
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* @note uses IR sensor
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*/
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float sensor_mlx90614_temperature_object(void);
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