osd-contiki/examples/osd/arduino-soil-moisture/I2CSoilMoistureSensor-master/I2CSoilMoistureSensor.h
2017-03-24 11:08:45 +01:00

61 lines
2.4 KiB
C++
Executable file

/*----------------------------------------------------------------------*
* I2CSoilMoistureSensor.h - Arduino library for the Sensor version of *
* I2C Soil Moisture Sensor version from Chrirp *
* (https://github.com/Miceuz/i2c-moisture-sensor). *
* *
* Ingo Fischer 11Nov2015 *
* https://github.com/Apollon77/I2CSoilMoistureSensor *
* *
* MIT license *
*----------------------------------------------------------------------*/
#ifndef I2CSOILMOISTURESENSOR_H
#define I2CSOILMOISTURESENSOR_H
#include <Arduino.h>
//Default I2C Address of the sensor
#define SOILMOISTURESENSOR_DEFAULT_ADDR 0x20
//Soil Moisture Sensor Register Addresses
#define SOILMOISTURESENSOR_GET_CAPACITANCE 0x00 // (r) 2 bytes
#define SOILMOISTURESENSOR_SET_ADDRESS 0x01 // (w) 1 byte
#define SOILMOISTURESENSOR_GET_ADDRESS 0x02 // (r) 1 byte
#define SOILMOISTURESENSOR_MEASURE_LIGHT 0x03 // (w) n/a
#define SOILMOISTURESENSOR_GET_LIGHT 0x04 // (r) 2 bytes
#define SOILMOISTURESENSOR_GET_TEMPERATURE 0x05 // (r) 2 bytes
#define SOILMOISTURESENSOR_RESET 0x06 // (w) n/a
#define SOILMOISTURESENSOR_GET_VERSION 0x07 // (r) 1 bytes
#define SOILMOISTURESENSOR_SLEEP 0x08 // (w) n/a
#define SOILMOISTURESENSOR_GET_BUSY 0x09 // (r) 1 bytes
class I2CSoilMoistureSensor {
public:
I2CSoilMoistureSensor(uint8_t addr = SOILMOISTURESENSOR_DEFAULT_ADDR);
void begin(bool wait = false);
unsigned int getCapacitance();
bool setAddress(int addr, bool reset);
void changeSensor(int addr, bool wait = false);
uint8_t getAddress();
void startMeasureLight();
unsigned int getLight(bool wait = false);
int getTemperature();
void resetSensor();
uint8_t getVersion();
void sleep();
bool isBusy();
private:
int sensorAddress;
void writeI2CRegister8bit(int addr, int value);
void writeI2CRegister8bit(int addr, int reg, int value);
uint16_t readI2CRegister16bitUnsigned(int addr, byte reg);
int16_t readI2CRegister16bitSigned(int addr, byte reg);
uint8_t readI2CRegister8bit(int addr, int reg);
};
#endif