A component library for MiCS-6814 Multichannel Gas Sensor (seeed)
Dependents: MiCS6814_GasSensor_Hello grove_multichannel_GasSensor
Diff: multigas_sensor.h
- Revision:
- 1:5caeba593de4
- Parent:
- 0:e0794665caf1
- Child:
- 2:8d61377f2e2a
--- a/multigas_sensor.h Wed May 24 01:43:23 2017 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,190 +0,0 @@
-/**
- ******************************************************************************
- * @file multigas_sensor.h
- * @author Boting Ren
- * @version V1.0.1
- * @date 22 May 2017
- * @brief This file contains the class of a Multichannel Gas Sensor library with I2C interface
- ******************************************************************************
- * @attention
- *
- * 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 THE
- * AUTHORS OR COPYRIGHT HOLDERS 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.
- *
- * @par History
- * - 19 May 2017, V1.0.0, Boting Ren
- * - 22 May 2017, V1.0.1, Boting Ren
- * 1. changed class name and private variables name
- * 2. removed Public APIs (measure_xxx())
- * 3. removed removed timer and Cache feature
- * 4. removed code working for version 1 firmware
- * 5. moved class private variables into member functions
- * 6. added more detail doxygen comments
- *
- */
-#ifndef MBED_MULTIGAS_SENSOR_H
-#define MBED_MULTIGAS_SENSOR_H
-
-#include "mbed.h"
-
-//#define _DEBUG
-
-#define SLAVE_ADDRESS_MiCS6814 (0x04<<1)
-
-#define ADDR_IS_SET 0 // This is read at initialization time, if 1126, set
-#define ADDR_FACTORY_ADC_NH3 2
-#define ADDR_FACTORY_ADC_CO 4
-#define ADDR_FACTORY_ADC_NO2 6
-
-#define ADDR_USER_ADC_HN3 8
-#define ADDR_USER_ADC_CO 10
-#define ADDR_USER_ADC_NO2 12
-#define ADDR_IF_CALI 14 // IF USER HAD CALI
-
-#define ADDR_I2C_ADDRESS 20
-
-#define CH_VALUE_NH3 1
-#define CH_VALUE_CO 2
-#define CH_VALUE_NO2 3
-
-#define CMD_ADC_RES0 1 // NH3
-#define CMD_ADC_RES1 2 // CO
-#define CMD_ADC_RES2 3 // NO2
-#define CMD_ADC_RESALL 4 // ALL CHANNEL
-#define CMD_CHANGE_I2C 5 // CHANGE I2C
-#define CMD_READ_EEPROM 6 // READ EEPROM VALUE, RETURN UNSIGNED INT
-#define CMD_SET_R0_ADC 7 // SET R0 ADC VALUE
-#define CMD_GET_R0_ADC 8 // GET R0 ADC VALUE
-#define CMD_GET_R0_ADC_FACTORY 9 // GET FACTORY R0 ADC VALUE
-#define CMD_CONTROL_LED 10
-#define CMD_CONTROL_PWR 11
-
-
-#ifdef _DEBUG
-extern Serial pc;
-#define DEBUG_PRINT(...) pc.printf(__VA_ARGS__)
-#else
-#define DEBUG_PRINT(...)
-#endif
-
-enum GAS_TYPE{NH3, CO, NO2, C3H8, C4H10, CH4, H2, C2H5OH};
-enum READ_ERROR_TYPE{READ_OK, NULL_RETURN_BUFFER_PTR, WRITE_LENGTH_ERROR, READ_LENGTH_ERROR, CHECKSUM_ERROR};
-
-/**
- * @class MiCS6814_GasSensor
- * @brief A mbed component library to measure gas data by using Grove - Multichannel Gas Sensor (seeed)
- * Please refer the details of the sensor. http://wiki.seeed.cc/Grove-Multichannel_Gas_Sensor/
- *
- */
-
-class MiCS6814_GasSensor{
-
-public:
- /** Create a MiCS6814_GasSensor instance
- * the sensor is connected to specified I2C pins with specified address
- * 1. create an I2C instance
- * 2. initialize private variables.
- *
- * @param[in] sda I2C-bus SDA pin
- * @param[in] scl I2C-bus SCL pin
- * @param[in] slave_adr (option) I2C-bus address (default: 0x04<<1)
- * @par sample code (K64F)
- * MiCS6814_GasSensor gas(I2C_SDA, I2C_SCL);
- */
- MiCS6814_GasSensor(PinName sda, PinName sck, char slave_adr = SLAVE_ADDRESS_MiCS6814);
-
- /** Create a MiCS6814_GasSensor instance
- * the sensor is connected to specified I2C pins with specified address
- * 1. pass an I2C instance,
- * 2. then initialize private variables.
- *
- * @param[in] i2c_obj I2C object (instance)
- * @param[in] slave_adr (option) I2C-bus address (default: 0x04<<1)
- * @par sample code (K64F)
- * I2C MySlave(I2C_SDA, I2C_SC);
- * MiCS6814_GasSensor gas(MySlave);
- */
- MiCS6814_GasSensor(I2C &i2c_obj, char slave_adr = SLAVE_ADDRESS_MiCS6814);
-
- /** Destructor of MiCS6814_GasSensor
- * 1. Power off heater
- * 2. Release allocated heap memory.
- */
- virtual ~MiCS6814_GasSensor();
-
- /** Initialize MiCS6814_GasSensor
- * 1. Read firmware version from sensor
- * 2. Power on heater
- * 3. Clear private variables
- */
- void initialize(void);
-
- /** Return a specific measured value, unit: ppm
- *
- * @param[in] gas_type one of gas type defined at enum GAS_TYPE
- * @return the measured concentration of specific gas type (ppm)
- * @par sample code
- * val = calcGas(C3H8);
- */
- float calcGas(const enum GAS_TYPE gas_type);
-
-private:
-
- I2C *_i2c_p;
- I2C &_i2c;
- char _address; //I2C address of this MCU
- /** Check firmware version of sensor
- * only support 2
- */
- void CheckFirmwareVersion(void);
-
- /** Turn On/Off sensor heater
- *
- * @param[in] Heater_On_flag True: Turn on, False: Turn off
- */
- void HeaterPower(bool Heater_On_flag);
- /** Read 16-bit data from sensor
- *
- * @param[in] reg_addr register adderss
- * @param[in] data_4reg data for the register, it will be Zero in case no input data for above register.
- * @param[in] write_length length for I2C writing, should be 1 or 2
- * @param[in] read_length length for I2C reading, should be 2 or 4
- * @param[out] pointer for read result buffer 16-bit
- * @return status
- */
- READ_ERROR_TYPE read_Multibytes(unsigned char reg_addr, unsigned char data_4reg ,unsigned char write_length, unsigned char read_length, uint16_t *readBuf);
-
- /** Read A0_[x] of sensor
- *
- * @param[in] index {0,1,2}
- * @return return A0_[x] for version 2
- */
- uint16_t readR0_A0(unsigned char _indix);
-
- /** Read An_[x] of sensor
- *
- * @param[in] index {0,1,2}
- * @return return An_[x] for version 2
- */
- uint16_t readRs_An(unsigned char _indix);
-
-};
-
-
-
-#endif // MBED_MULTIGAS_SENSOR_H
MiCS6814 MultiChannel Gas Sensor