101 lines
3.5 KiB
C++
101 lines
3.5 KiB
C++
#pragma once
|
|
|
|
#include "drivers/ioexpander/ioexpander.hpp"
|
|
|
|
namespace pimoroni {
|
|
|
|
class BreakoutMICS6814 {
|
|
//--------------------------------------------------
|
|
// Constants
|
|
//--------------------------------------------------
|
|
public:
|
|
static const uint8_t DEFAULT_I2C_ADDRESS = 0x19;
|
|
static constexpr float DEFAULT_BRIGHTNESS = 1.0f; //Effectively the maximum fraction of the period that the LED will be on
|
|
static const uint32_t DEFAULT_TIMEOUT = 1;
|
|
static const uint32_t DEFAULT_ADC_TIMEOUT = 1;
|
|
|
|
private:
|
|
static const uint8_t LED_R = 3;
|
|
static const uint8_t LED_G = 7;
|
|
static const uint8_t LED_B = 2;
|
|
|
|
static const uint8_t MICS_VREF = 14;
|
|
static const uint8_t MICS_RED = 12;
|
|
static const uint8_t MICS_NH3 = 11;
|
|
static const uint8_t MICS_OX = 13;
|
|
static const uint8_t MICS_HEATER_EN = 1;
|
|
|
|
static const bool INVERT_OUTPUT = true; //true for common cathode, false for common anode
|
|
|
|
|
|
//--------------------------------------------------
|
|
// Substructures
|
|
//--------------------------------------------------
|
|
public:
|
|
struct Reading {
|
|
float ref;
|
|
float reducing;
|
|
float nh3;
|
|
float oxidising;
|
|
};
|
|
|
|
|
|
//--------------------------------------------------
|
|
// Variables
|
|
//--------------------------------------------------
|
|
private:
|
|
IOExpander ioe;
|
|
float brightness = DEFAULT_BRIGHTNESS;
|
|
|
|
|
|
//--------------------------------------------------
|
|
// Constructors/Destructor
|
|
//--------------------------------------------------
|
|
public:
|
|
BreakoutMICS6814(uint8_t address = DEFAULT_I2C_ADDRESS) : BreakoutMICS6814(new I2C(), address) {};
|
|
|
|
BreakoutMICS6814(I2C *i2c, uint8_t address = DEFAULT_I2C_ADDRESS, uint interrupt = PIN_UNUSED, uint32_t timeout = DEFAULT_TIMEOUT, bool debug = false) :
|
|
ioe(i2c, address, interrupt, timeout, debug) {}
|
|
|
|
// TODO remove MicroPython-binding compatibility constructors
|
|
BreakoutMICS6814(uint8_t address, uint sda, uint scl, uint interrupt = PIN_UNUSED, uint32_t timeout = DEFAULT_TIMEOUT) : BreakoutMICS6814(new I2C(sda, scl), address, interrupt, timeout) {};
|
|
|
|
//--------------------------------------------------
|
|
// Methods
|
|
//--------------------------------------------------
|
|
public:
|
|
bool init(bool skip_chip_id_check = false);
|
|
|
|
// For print access in micropython
|
|
i2c_inst_t* get_i2c() const;
|
|
int get_address() const;
|
|
int get_sda() const;
|
|
int get_scl() const;
|
|
int get_int() const;
|
|
|
|
// Calls through to IOExpander class
|
|
void set_address(uint8_t address);
|
|
|
|
float get_adc_vref();
|
|
void set_adc_vref(float vref);
|
|
|
|
// MICS breakout specific
|
|
void set_brightness(float brightness);
|
|
void set_led(uint8_t r, uint8_t g, uint8_t b);
|
|
|
|
void set_heater(bool on);
|
|
void disable_heater();
|
|
|
|
float get_raw_ref(uint32_t adc_timeout = DEFAULT_ADC_TIMEOUT);
|
|
float get_raw_red(uint32_t adc_timeout = DEFAULT_ADC_TIMEOUT);
|
|
float get_raw_nh3(uint32_t adc_timeout = DEFAULT_ADC_TIMEOUT);
|
|
float get_raw_oxd(uint32_t adc_timeout = DEFAULT_ADC_TIMEOUT);
|
|
|
|
Reading read_all(uint32_t adc_timeout = DEFAULT_ADC_TIMEOUT);
|
|
float read_ref(uint32_t adc_timeout = DEFAULT_ADC_TIMEOUT);
|
|
float read_reducing(uint32_t adc_timeout = DEFAULT_ADC_TIMEOUT);
|
|
float read_nh3(uint32_t adc_timeout = DEFAULT_ADC_TIMEOUT);
|
|
float read_oxidising(uint32_t adc_timeout = DEFAULT_ADC_TIMEOUT);
|
|
};
|
|
|
|
} |