Arrow / FXPQ3115

Driver for FXPQ3115 sensor.

Example usage

main.cpp

#include "mbed.h"
#include "FXPQ3115.h"

FXPQ3115 pressure_sensor(P0_13, P0_14);

int main()
{
    pressure_sensor.sensor_init();

    while (1) {
        pressure_sensor.read_oneshotMode_bar();
        printf("Pressure in Pascals: %d\n", pressure_sensor.print_pressure());
        thread_sleep_for(20000);
    }
}

FXPQ3115.h@0:0b221579ed52, 2020-03-05 (annotated)

Committer:
Pawel Zarembski
Date:
Thu Mar 05 11:13:50 2020 +0100
Revision:
0:0b221579ed52
initial version, one shot mode for pressure only

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Pawel Zarembski 0:0b221579ed52 1 #ifndef FXPQ3115_H_
Pawel Zarembski 0:0b221579ed52 2 #define FXPQ3115_H_
Pawel Zarembski 0:0b221579ed52 3
Pawel Zarembski 0:0b221579ed52 4 #include "mbed.h"
Pawel Zarembski 0:0b221579ed52 5 #include "FXPQ3115_reg.h"
Pawel Zarembski 0:0b221579ed52 6
Pawel Zarembski 0:0b221579ed52 7 #ifndef SUCCESS
Pawel Zarembski 0:0b221579ed52 8 #define SUCCESS 0
Pawel Zarembski 0:0b221579ed52 9 #endif
Pawel Zarembski 0:0b221579ed52 10
Pawel Zarembski 0:0b221579ed52 11 #ifndef FAILURE
Pawel Zarembski 0:0b221579ed52 12 #define FAILURE 1
Pawel Zarembski 0:0b221579ed52 13 #endif
Pawel Zarembski 0:0b221579ed52 14
Pawel Zarembski 0:0b221579ed52 15 #ifdef FXPQ3115_I2C_ADDRESS
Pawel Zarembski 0:0b221579ed52 16 #define FXPQ3115_I2C_ADDRESS_SHIFTED (FXPQ3115_I2C_ADDRESS << 1)
Pawel Zarembski 0:0b221579ed52 17 #endif
Pawel Zarembski 0:0b221579ed52 18
Pawel Zarembski 0:0b221579ed52 19 #define FXPQ3115_PRESSURE_CONV_FACTOR (64) /* Will give Pascals */
Pawel Zarembski 0:0b221579ed52 20 #define FXPQ3115_ALTITUDE_CONV_FACTOR (65536) /* Will give meters above MSL */
Pawel Zarembski 0:0b221579ed52 21 #define FXPQ3115_TEMPERATURE_CONV_FACTOR (256) /* Will give °C */
Pawel Zarembski 0:0b221579ed52 22
Pawel Zarembski 0:0b221579ed52 23 class FXPQ3115 {
Pawel Zarembski 0:0b221579ed52 24 public:
Pawel Zarembski 0:0b221579ed52 25 FXPQ3115(PinName sda, PinName scl);
Pawel Zarembski 0:0b221579ed52 26
Pawel Zarembski 0:0b221579ed52 27 uint8_t sensor_init();
Pawel Zarembski 0:0b221579ed52 28 uint8_t read_oneshotMode_bar();
Pawel Zarembski 0:0b221579ed52 29 uint32_t print_pressure();
Pawel Zarembski 0:0b221579ed52 30
Pawel Zarembski 0:0b221579ed52 31 private:
Pawel Zarembski 0:0b221579ed52 32 I2C _i2c;
Pawel Zarembski 0:0b221579ed52 33 char _bar_data[3];
Pawel Zarembski 0:0b221579ed52 34
Pawel Zarembski 0:0b221579ed52 35 uint8_t _config_bar();
Pawel Zarembski 0:0b221579ed52 36 uint8_t _wait_for_acq();
Pawel Zarembski 0:0b221579ed52 37 };
Pawel Zarembski 0:0b221579ed52 38
Pawel Zarembski 0:0b221579ed52 39 #endif // FXPQ3115_H_