Maxim Integrated MAX30205 C, C++ source code driver software: MAX30205 is accurate to +-0.1°C over the range of 37.0°C to 39.0°C. One-shot, shutdown modes are available for reduced power usage. Thermostat thresholds allow for temperature hysteresis or for alarm settings. The MAX30205 is available in a compact 3x3 mm, 8-pin TDFN package. Operating supply voltage range is 2.7V to 3.3V. Typical applications are for clinical digital thermometers, thermostats with hysteresis, and temperature alarms.
Dependents: MAX30205_Human_Body_Temperature_Sensor
max30205_cpp.h
- Committer:
- phonemacro
- Date:
- 2019-04-17
- Revision:
- 10:9c5dc1393570
- Parent:
- 9:d98e4a80a866
File content as of revision 10:9c5dc1393570:
/******************************************************************************* * Copyright (C) 2019 Maxim Integrated Products, Inc., All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. ******************************************************************************* * @file max30205_cpp.h ******************************************************************************* */ #ifndef MAX30205_CPP_H #define MAX30205_CPP_H #include "mbed.h" /** * @brief Digital thermometer, thermostat, temperature sensor. * @version 1.0001.0000 * * @details The MAX30205 temperature sensors * provides accurate temperature measurements of +-0.1°C * over the range of 37°C to 39°C (98.6°F to 102.2°F) * The MAX30205 can operate in a low powered mode by utilizing * the shutdown and one-shot mode. * 8-pin TQDFN 3x3 mm package * Operating temperature: 0°C to 50°C (+32°F to +122°). * VDD: 2.7V to 3.7V. * * @code * #include "mbed.h" * #include "max32630fthr.h" * #include "max30205.h" * #include "max30205_cpp.h" * #include "max30205_c.h" * #include "USBSerial.h" * Serial pc(USBTX, USBRX); // Use USB debug probe for serial link * Serial uart(P2_1, P2_0); * void wait_sec_prompt(uint8_t time) * { * // Ports and serial connections * uint32_t i; * for (i = 0; i < time; i++) { * pc.printf("."); * wait(1); * } * pc.printf("\r\n"); * } * MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3); * DigitalOut rLED(LED1); * DigitalOut gLED(LED2); * DigitalOut bLED(LED3); * I2C i2cBus(P3_4, P3_5) * int main() * { * uint8_t i2c_addr = MAX30205_I2C_SLAVE_ADR_00; * float temperature; * DigitalOut rLED(LED1, LED_OFF); * DigitalOut gLED(LED2, LED_OFF); * DigitalOut bLED(LED3, LED_OFF); * gLED = LED_ON; * MAX30205 temp_sensor(i2cBus, i2c_addr); * i2cBus.frequency(400000); * temperature = * temp_sensor.read_reg_as_temperature(MAX30205_REG_TEMPERATURE); * pc.printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", * temperature, temp_sensor.celsius_to_fahrenheit(temperature)); * } * @endcode */ class MAX30205 { public: /**********************************************************//** * @brief Constructor for MAX30205 Class. * * @details Allows user to use existing I2C object * * On Entry: * @param[in] i2c_bus - pointer to existing I2C object * @param[in] i2c_adrs - 7-bit slave address of MAX30205 * * On Exit: * * @return None **************************************************************/ MAX30205(I2C &i2c_bus, uint8_t slave_address); /**********************************************************//** * @brief Default destructor for MAX30205 Class. * * @details Destroys I2C object if owner * * On Entry: * * On Exit: * * @return None **************************************************************/ ~MAX30205(); /** * @brief Read register of device at slave address * @param[out] value - Read data on success * @return 0 on success, negative number on failure */ int read_cfg_reg(uint8_t *value); /** * @brief Read register of device at slave address * @param[out] value - Read data on success * @param reg - Register address * @return 0 on success, negative number on failure */ int read_reg16(int16_t *value, char reg); /** * @brief Reads the temperature registers * @param reg - the address of the temperature register * @return temperature in degrees Celsius */ float read_reg_as_temperature(uint8_t reg); /** * @brief Writes to the configuration register * @param cfg - configurate word * @return 0 on success, negative number on failure */ int write_cfg_reg(uint8_t cfg); /** * @brief Writes to the THYST register * @param temperature - the temperature in Celsius degrees * @return 0 on success, negative number on failure */ int write_trip_low_thyst(float temperature); /** * @brief Writes to the TOS register * @param temperature - the temperature in Celsius degrees * @return 0 on success, negative number on failure */ int write_trip_high_tos(float temperature); /** * @brief Converts Celsius degrees to Fahrenheit * @param temp_c - the temperature in Celsius degrees * @return temperature in Celsius degrees */ float celsius_to_fahrenheit(float temp_c); protected: /** * @brief Write a value to a register * @param value - value to write to the register * @param reg - register address * @return 0 on success, negative number on failure */ int write_reg16(int16_t value, char reg); private: /** @var m_i2c * @brief I2C object */ I2C &m_i2c; /** @var m_write_address, m_read_address * @brief I2C address */ uint8_t m_write_address, m_read_address; /** @var m_extended_format * @brief Extended format, add 64°C to the temperature reading */ uint32_t max30205_extended_format; }; #endif/* MAX30205_CPP */