電流電圧センサINA226のライブラリ
Dependents: Hybrid_IZU2021_MAIN_OS5 Hybrid_IZU2021_MAIN
PQ_INA226.cpp
- Committer:
- tanahashi
- Date:
- 2021-03-08
- Revision:
- 1:415a7cc3ec67
- Parent:
- 0:4c315fe513d0
File content as of revision 1:415a7cc3ec67:
#include "mbed.h" #include "PQ_INA226.h" INA226::INA226(I2C &i2c, A0_t A0, A1_t A1) { _i2c = &i2c; _addr = (0b1000000 | A1 << 2 | A0) << 1; _i2c->frequency(400000); } void INA226::begin(){ cmd[0] = INA226_CALIBRATION; cmd[1] = 0x0A; cmd[2] = 0x00; _i2c->write(_addr, cmd, 3); } bool INA226::test() { cmd[0] = INA226_WHO_AM_I; _i2c->write(_addr, cmd, 1); _i2c->read(_addr, buff, 1); if(buff[0] == 0x22) { return true; } else { return false; } } void INA226::read(float *voltage, float *current, float *power) { read_voltage(voltage); read_current(current); read_power(power); } void INA226::read_voltage(float *voltage){ cmd[0] = INA226_BUS_VOLTAGE; _i2c->write(_addr, cmd, 1); _i2c->read(_addr, buff, 2); *voltage = (short)(buff[0] << 8 | buff[1]) * INA226_VOLTAGE_LSB; } void INA226::read_current(float *current){ cmd[0] = INA226_CURRENT; _i2c->write(_addr, cmd, 1); _i2c->read(_addr, buff, 2); *current = (short)(buff[0] << 8 | buff[1]) * INA226_CURRENT_LSB; } void INA226::read_power(float *power) { cmd[0] = INA226_POWER; _i2c->write(_addr, cmd, 1); _i2c->read(_addr, buff, 2); *power = (short)(buff[0] << 8 | buff[1]) * INA226_POWER_LSB; }