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MeshCore-Evo/src/helpers/sensors/RAK12035_SoilMoisture.h

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/**
* @file RAK12035_SoilMoisture.h
* @author Bernd Giesecke (bernd.giesecke@rakwireless.com)
* @brief Header file for Class RAK12035
* @version 0.1
* @date 2021-11-20
*
* Updates for MeshCore integration
* Ken Privitt
* 2/26/2026
*
* @copyright Copyright (c) 2021
*
*/
#ifndef RAK12035_SOILMOISTURE_H
#define RAK12035_SOILMOISTURE_H
#endif
#ifndef ENABLE_RAK12025_CALIBRATION
#define ENABLE_RAK12025_CALIBRATION = 0 // Used to generate Calibration Version of Firmware
#include <Arduino.h>
#include <Wire.h>
#define RAK12035_I2C_ADDR_DEFAULT 0x20
#define RAK12035_0_ADDR 0x20
#define RAK12035_1_ADDR 0x21
#define RAK12035_2_ADDR 0x22
// Command codes used by the RAK12035 firmware
#define SOILMOISTURESENSOR_GET_CAPACITANCE 0x01 // (r) 2 bytes
#define SOILMOISTURESENSOR_GET_I2C_ADDR 0x02 // (r) 1 bytes
#define SOILMOISTURESENSOR_SET_I2C_ADDR 0x03 // (w) 1 bytes
#define SOILMOISTURESENSOR_GET_VERSION 0x04 // (r) 1 bytes
#define SOILMOISTURESENSOR_GET_TEMPERATURE 0x05 // (r) 2 bytes
#define SOILMOISTURESENSOR_SET_SLEEP 0x06 // (w) 1 bytes
#define SOILMOISTURESENSOR_SET_WET_CAL 0x07 // (w) 2 bytes
#define SOILMOISTURESENSOR_SET_DRY_CAL 0x08 // (w) 2 bytes
#define SOILMOISTURESENSOR_GET_MOISTURE 0x09 // (r) 1 bytes
#define SOILMOISTURESENSOR_GET_WET_CAL 0x0A // (r) 2 bytes
#define SOILMOISTURESENSOR_GET_DRY_CAL 0x0B // (r) 2 bytes
class RAK12035_SoilMoisture
{
public:
RAK12035_SoilMoisture(uint8_t addr = RAK12035_I2C_ADDR_DEFAULT);
void setup(TwoWire& i2c);
bool begin(uint8_t addr);
bool getEvent(uint8_t *humidity, uint16_t *temperature);
uint16_t get_sensor_capacitance(); //Command 01 - (r) 2 byte
uint8_t get_I2C_address(); //Command 02 - (r) 1 byte
bool set_sensor_addr(uint8_t addr); //Command 03 - (w) 1 byte
uint8_t get_sensor_version(); //Command 04 - (r) 1 byte
float get_sensor_temperature(); //Command 05 - (r) 2 bytes
bool sensor_sleep(); //Command 06 - (w) 1 byte
bool set_humidity_full(uint16_t hundred_val); //Command 07 - (w) 2 bytes
bool set_humidity_zero(uint16_t zero_val); //Command 08 - (w) 2 bytes
uint8_t get_sensor_moisture(); //Command 09 - (r) 1 byte
uint8_t get_sensor_humid(); //Command 09 - (r) 1 byte
uint16_t get_humidity_full(); //Command 0A - (r) 2 bytes
uint16_t get_humidity_zero(); //Command 0B - (r) 2 bytes
bool read_rak12035(uint8_t cmd, uint8_t *data, uint8_t length);
bool write_rak12035(uint8_t cmd, uint8_t *data, uint8_t length);
bool query_sensor();
bool sensor_on();
bool reset();
uint16_t _dry_cal;
uint16_t _wet_cal;
private:
bool read_reg(uint8_t reg, uint8_t *data, uint8_t len);
bool write_reg(uint8_t reg, uint8_t *data, uint8_t len);
TwoWire *_i2c = &Wire;
uint8_t _addr;
uint16_t default_dry_cal = 2000;
uint16_t default_wet_cal = 50;
uint8_t _capacitance = 0;
uint16_t _temperature = 0;
uint8_t _moisture = 0;
};
#endif