Add MicroPython bindings for BME280 and BMP280

pull/152/head
Phil Howard 2021-05-19 17:49:14 +01:00
rodzic f0eff195fe
commit be9b1437db
17 zmienionych plików z 427 dodań i 0 usunięć

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@ -72,4 +72,12 @@ namespace pimoroni {
reading.humidity = data.humidity;
return reading;
}
I2C* BME280::get_i2c() const {
return i2c;
}
int BME280::get_int() const {
return interrupt;
}
}

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@ -35,6 +35,10 @@ namespace pimoroni {
BME280(uint8_t address) : BME280(new I2C(), address) {}
BME280(I2C *i2c, uint8_t address = DEFAULT_I2C_ADDRESS, uint interrupt = PIN_UNUSED) : i2c(i2c), address(address), interrupt(interrupt) {}
// For print access in micropython
I2C* get_i2c() const;
int get_int() const;
bme280_reading read();
BME280::bme280_reading read_forced();

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@ -57,4 +57,12 @@ namespace pimoroni {
return result;
}
I2C* BMP280::get_i2c() const {
return i2c;
}
int BMP280::get_int() const {
return interrupt;
}
}

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@ -34,6 +34,10 @@ namespace pimoroni {
BMP280(uint8_t address) : BMP280(new I2C(), address) {}
BMP280(I2C *i2c, uint8_t address = DEFAULT_I2C_ADDRESS, uint interrupt = PIN_UNUSED) : i2c(i2c), address(address), interrupt(interrupt) {}
// For print access in micropython
I2C* get_i2c() const;
int get_int() const;
bmp280_reading read();
// Bindings for bmp280_dev

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@ -0,0 +1,14 @@
import time
from breakout_bme280 import BreakoutBME280
from pimoroni_i2c import PimoroniI2C
PINS_BREAKOUT_GARDEN = {"sda": 4, "scl": 5}
PINS_PICO_EXPLORER = {"sda": 20, "scl": 21}
i2c = PimoroniI2C(**PINS_BREAKOUT_GARDEN)
bme = BreakoutBME280(i2c)
while True:
reading = bme.read()
print(reading)
time.sleep(1.0)

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@ -0,0 +1,14 @@
import time
from breakout_bmp280 import BreakoutBMP280
from pimoroni_i2c import PimoroniI2C
PINS_BREAKOUT_GARDEN = {"sda": 4, "scl": 5}
PINS_PICO_EXPLORER = {"sda": 20, "scl": 21}
i2c = PimoroniI2C(**PINS_BREAKOUT_GARDEN)
bmp = BreakoutBMP280(i2c)
while True:
reading = bmp.read()
print(reading)
time.sleep(1.0)

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@ -0,0 +1,46 @@
#include "breakout_bme280.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// BreakoutBME280 Class
////////////////////////////////////////////////////////////////////////////////////////////////////
/***** Methods *****/
MP_DEFINE_CONST_FUN_OBJ_1(BreakoutBME280_read_obj, BreakoutBME280_read);
/***** Binding of Methods *****/
STATIC const mp_rom_map_elem_t BreakoutBME280_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&BreakoutBME280_read_obj) },
};
STATIC MP_DEFINE_CONST_DICT(BreakoutBME280_locals_dict, BreakoutBME280_locals_dict_table);
/***** Class Definition *****/
const mp_obj_type_t breakout_bme280_BreakoutBME280_type = {
{ &mp_type_type },
.name = MP_QSTR_breakout_bme280,
.print = BreakoutBME280_print,
.make_new = BreakoutBME280_make_new,
.locals_dict = (mp_obj_dict_t*)&BreakoutBME280_locals_dict,
};
////////////////////////////////////////////////////////////////////////////////////////////////////
// breakout_bme280 Module
////////////////////////////////////////////////////////////////////////////////////////////////////
/***** Globals Table *****/
STATIC const mp_map_elem_t breakout_bme280_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_breakout_bme280) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_BreakoutBME280), (mp_obj_t)&breakout_bme280_BreakoutBME280_type },
};
STATIC MP_DEFINE_CONST_DICT(mp_module_breakout_bme280_globals, breakout_bme280_globals_table);
/***** Module Definition *****/
const mp_obj_module_t breakout_bme280_user_cmodule = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t*)&mp_module_breakout_bme280_globals,
};
////////////////////////////////////////////////////////////////////////////////////////////////////
MP_REGISTER_MODULE(MP_QSTR_breakout_bme280, breakout_bme280_user_cmodule, MODULE_BREAKOUT_BME280_ENABLED);
////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////

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@ -0,0 +1,96 @@
#include "drivers/bme280/bme280.hpp"
#define MP_OBJ_TO_PTR2(o, t) ((t *)(uintptr_t)(o))
// SDA/SCL on even/odd pins, I2C0/I2C1 on even/odd pairs of pins.
#define IS_VALID_SCL(i2c, pin) (((pin) & 1) == 1 && (((pin) & 2) >> 1) == (i2c))
#define IS_VALID_SDA(i2c, pin) (((pin) & 1) == 0 && (((pin) & 2) >> 1) == (i2c))
using namespace pimoroni;
extern "C" {
#include "breakout_bme280.h"
#include "pimoroni_i2c.h"
/***** I2C Struct *****/
typedef struct _PimoroniI2C_obj_t {
mp_obj_base_t base;
I2C *i2c;
} _PimoroniI2C_obj_t;
/***** Variables Struct *****/
typedef struct _breakout_bme280_BreakoutBME280_obj_t {
mp_obj_base_t base;
BME280 *breakout;
} breakout_bme280_BreakoutBME280_obj_t;
/***** Print *****/
void BreakoutBME280_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
(void)kind; //Unused input parameter
breakout_bme280_BreakoutBME280_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_bme280_BreakoutBME280_obj_t);
BME280* breakout = self->breakout;
mp_print_str(print, "BreakoutBME280(");
mp_print_str(print, "i2c = ");
mp_obj_print_helper(print, mp_obj_new_int((breakout->get_i2c()->get_i2c() == i2c0) ? 0 : 1), PRINT_REPR);
mp_print_str(print, ", sda = ");
mp_obj_print_helper(print, mp_obj_new_int(breakout->get_i2c()->get_sda()), PRINT_REPR);
mp_print_str(print, ", scl = ");
mp_obj_print_helper(print, mp_obj_new_int(breakout->get_i2c()->get_scl()), PRINT_REPR);
mp_print_str(print, ", int = ");
mp_obj_print_helper(print, mp_obj_new_int(breakout->get_int()), PRINT_REPR);
mp_print_str(print, ")");
}
/***** Constructor *****/
mp_obj_t BreakoutBME280_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
breakout_bme280_BreakoutBME280_obj_t *self = nullptr;
enum { ARG_i2c, ARG_address, ARG_int };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_i2c, MP_ARG_OBJ, {.u_obj = nullptr} },
{ MP_QSTR_address, MP_ARG_INT, {.u_int = BME280::DEFAULT_I2C_ADDRESS} },
{ MP_QSTR_interrupt, MP_ARG_INT, {.u_int = PIN_UNUSED} },
};
// Parse args.
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
if(!MP_OBJ_IS_TYPE(args[ARG_i2c].u_obj, &PimoroniI2C_type)) {
mp_raise_ValueError(MP_ERROR_TEXT("BreakoutBME280: Bad i2C object"));
return mp_const_none;
}
_PimoroniI2C_obj_t *i2c = (_PimoroniI2C_obj_t *)MP_OBJ_TO_PTR(args[ARG_i2c].u_obj);
self = m_new_obj(breakout_bme280_BreakoutBME280_obj_t);
self->base.type = &breakout_bme280_BreakoutBME280_type;
self->breakout = new BME280(i2c->i2c, args[ARG_address].u_int, args[ARG_int].u_int);
if(!self->breakout->init()) {
mp_raise_msg(&mp_type_RuntimeError, "BreakoutBME280: breakout not found when initialising");
}
return MP_OBJ_FROM_PTR(self);
}
mp_obj_t BreakoutBME280_read(mp_obj_t self_in) {
breakout_bme280_BreakoutBME280_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_bme280_BreakoutBME280_obj_t);
BME280::bme280_reading result = self->breakout->read_forced();
mp_obj_t tuple[3];
tuple[0] = mp_obj_new_float(result.temperature);
tuple[1] = mp_obj_new_float(result.pressure);
tuple[2] = mp_obj_new_float(result.humidity);
return mp_obj_new_tuple(3, tuple);
}
}

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@ -0,0 +1,12 @@
// Include MicroPython API.
#include "py/runtime.h"
/***** Constants *****/
/***** Extern of Class Definition *****/
extern const mp_obj_type_t breakout_bme280_BreakoutBME280_type;
/***** Extern of Class Methods *****/
extern void BreakoutBME280_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind);
extern mp_obj_t BreakoutBME280_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args);
extern mp_obj_t BreakoutBME280_read(mp_obj_t self_in);

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@ -0,0 +1,20 @@
set(MOD_NAME breakout_bme280)
string(TOUPPER ${MOD_NAME} MOD_NAME_UPPER)
add_library(usermod_${MOD_NAME} INTERFACE)
target_sources(usermod_${MOD_NAME} INTERFACE
${CMAKE_CURRENT_LIST_DIR}/${MOD_NAME}.c
${CMAKE_CURRENT_LIST_DIR}/${MOD_NAME}.cpp
${CMAKE_CURRENT_LIST_DIR}/../../../drivers/bme280/src/bme280.c
${CMAKE_CURRENT_LIST_DIR}/../../../drivers/bme280/bme280.cpp
)
target_include_directories(usermod_${MOD_NAME} INTERFACE
${CMAKE_CURRENT_LIST_DIR}
)
target_compile_definitions(usermod_${MOD_NAME} INTERFACE
MODULE_${MOD_NAME_UPPER}_ENABLED=1
)
target_link_libraries(usermod INTERFACE usermod_${MOD_NAME})

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@ -0,0 +1,13 @@
set(MOD_NAME breakout_as7262)
BREAKOUT_MOD_DIR := $(USERMOD_DIR)
# Add our source files to the respective variables.
SRC_USERMOD += $(BREAKOUT_MOD_DIR)/${MOD_NAME}.c
SRC_USERMOD_CXX += $(BREAKOUT_MOD_DIR)/${MOD_NAME}.cpp
# Add our module directory to the include path.
CFLAGS_USERMOD += -I$(BREAKOUT_MOD_DIR)
CXXFLAGS_USERMOD += -I$(BREAKOUT_MOD_DIR)
# We use C++ features so have to link against the standard library.
LDFLAGS_USERMOD += -lstdc++

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@ -0,0 +1,46 @@
#include "breakout_bmp280.h"
////////////////////////////////////////////////////////////////////////////////////////////////////
// BreakoutBMP280 Class
////////////////////////////////////////////////////////////////////////////////////////////////////
/***** Methods *****/
MP_DEFINE_CONST_FUN_OBJ_1(BreakoutBMP280_read_obj, BreakoutBMP280_read);
/***** Binding of Methods *****/
STATIC const mp_rom_map_elem_t BreakoutBMP280_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&BreakoutBMP280_read_obj) },
};
STATIC MP_DEFINE_CONST_DICT(BreakoutBMP280_locals_dict, BreakoutBMP280_locals_dict_table);
/***** Class Definition *****/
const mp_obj_type_t breakout_bmp280_BreakoutBMP280_type = {
{ &mp_type_type },
.name = MP_QSTR_breakout_bmp280,
.print = BreakoutBMP280_print,
.make_new = BreakoutBMP280_make_new,
.locals_dict = (mp_obj_dict_t*)&BreakoutBMP280_locals_dict,
};
////////////////////////////////////////////////////////////////////////////////////////////////////
// breakout_bmp280 Module
////////////////////////////////////////////////////////////////////////////////////////////////////
/***** Globals Table *****/
STATIC const mp_map_elem_t breakout_bmp280_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_breakout_bmp280) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_BreakoutBMP280), (mp_obj_t)&breakout_bmp280_BreakoutBMP280_type },
};
STATIC MP_DEFINE_CONST_DICT(mp_module_breakout_bmp280_globals, breakout_bmp280_globals_table);
/***** Module Definition *****/
const mp_obj_module_t breakout_bmp280_user_cmodule = {
.base = { &mp_type_module },
.globals = (mp_obj_dict_t*)&mp_module_breakout_bmp280_globals,
};
////////////////////////////////////////////////////////////////////////////////////////////////////
MP_REGISTER_MODULE(MP_QSTR_breakout_bmp280, breakout_bmp280_user_cmodule, MODULE_BREAKOUT_BMP280_ENABLED);
////////////////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////////////////////////

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@ -0,0 +1,95 @@
#include "drivers/bmp280/bmp280.hpp"
#define MP_OBJ_TO_PTR2(o, t) ((t *)(uintptr_t)(o))
// SDA/SCL on even/odd pins, I2C0/I2C1 on even/odd pairs of pins.
#define IS_VALID_SCL(i2c, pin) (((pin) & 1) == 1 && (((pin) & 2) >> 1) == (i2c))
#define IS_VALID_SDA(i2c, pin) (((pin) & 1) == 0 && (((pin) & 2) >> 1) == (i2c))
using namespace pimoroni;
extern "C" {
#include "breakout_bmp280.h"
#include "pimoroni_i2c.h"
/***** I2C Struct *****/
typedef struct _PimoroniI2C_obj_t {
mp_obj_base_t base;
I2C *i2c;
} _PimoroniI2C_obj_t;
/***** Variables Struct *****/
typedef struct _breakout_bmp280_BreakoutBMP280_obj_t {
mp_obj_base_t base;
BMP280 *breakout;
} breakout_bmp280_BreakoutBMP280_obj_t;
/***** Print *****/
void BreakoutBMP280_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
(void)kind; //Unused input parameter
breakout_bmp280_BreakoutBMP280_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_bmp280_BreakoutBMP280_obj_t);
BMP280* breakout = self->breakout;
mp_print_str(print, "BreakoutBMP280(");
mp_print_str(print, "i2c = ");
mp_obj_print_helper(print, mp_obj_new_int((breakout->get_i2c()->get_i2c() == i2c0) ? 0 : 1), PRINT_REPR);
mp_print_str(print, ", sda = ");
mp_obj_print_helper(print, mp_obj_new_int(breakout->get_i2c()->get_sda()), PRINT_REPR);
mp_print_str(print, ", scl = ");
mp_obj_print_helper(print, mp_obj_new_int(breakout->get_i2c()->get_scl()), PRINT_REPR);
mp_print_str(print, ", int = ");
mp_obj_print_helper(print, mp_obj_new_int(breakout->get_int()), PRINT_REPR);
mp_print_str(print, ")");
}
/***** Constructor *****/
mp_obj_t BreakoutBMP280_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
breakout_bmp280_BreakoutBMP280_obj_t *self = nullptr;
enum { ARG_i2c, ARG_address, ARG_int };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_i2c, MP_ARG_OBJ, {.u_obj = nullptr} },
{ MP_QSTR_address, MP_ARG_INT, {.u_int = BMP280::DEFAULT_I2C_ADDRESS} },
{ MP_QSTR_interrupt, MP_ARG_INT, {.u_int = PIN_UNUSED} },
};
// Parse args.
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
if(!MP_OBJ_IS_TYPE(args[ARG_i2c].u_obj, &PimoroniI2C_type)) {
mp_raise_ValueError(MP_ERROR_TEXT("BreakoutBMP280: Bad i2C object"));
return mp_const_none;
}
_PimoroniI2C_obj_t *i2c = (_PimoroniI2C_obj_t *)MP_OBJ_TO_PTR(args[ARG_i2c].u_obj);
self = m_new_obj(breakout_bmp280_BreakoutBMP280_obj_t);
self->base.type = &breakout_bmp280_BreakoutBMP280_type;
self->breakout = new BMP280(i2c->i2c, args[ARG_address].u_int, args[ARG_int].u_int);
if(!self->breakout->init()) {
mp_raise_msg(&mp_type_RuntimeError, "BreakoutBMP280: breakout not found when initialising");
}
return MP_OBJ_FROM_PTR(self);
}
mp_obj_t BreakoutBMP280_read(mp_obj_t self_in) {
breakout_bmp280_BreakoutBMP280_obj_t *self = MP_OBJ_TO_PTR2(self_in, breakout_bmp280_BreakoutBMP280_obj_t);
BMP280::bmp280_reading result = self->breakout->read();
mp_obj_t tuple[2];
tuple[0] = mp_obj_new_float(result.temperature);
tuple[1] = mp_obj_new_float(result.pressure);
return mp_obj_new_tuple(2, tuple);
}
}

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@ -0,0 +1,12 @@
// Include MicroPython API.
#include "py/runtime.h"
/***** Constants *****/
/***** Extern of Class Definition *****/
extern const mp_obj_type_t breakout_bmp280_BreakoutBMP280_type;
/***** Extern of Class Methods *****/
extern void BreakoutBMP280_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind);
extern mp_obj_t BreakoutBMP280_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args);
extern mp_obj_t BreakoutBMP280_read(mp_obj_t self_in);

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@ -0,0 +1,20 @@
set(MOD_NAME breakout_bmp280)
string(TOUPPER ${MOD_NAME} MOD_NAME_UPPER)
add_library(usermod_${MOD_NAME} INTERFACE)
target_sources(usermod_${MOD_NAME} INTERFACE
${CMAKE_CURRENT_LIST_DIR}/${MOD_NAME}.c
${CMAKE_CURRENT_LIST_DIR}/${MOD_NAME}.cpp
${CMAKE_CURRENT_LIST_DIR}/../../../drivers/bmp280/src/bmp280.c
${CMAKE_CURRENT_LIST_DIR}/../../../drivers/bmp280/bmp280.cpp
)
target_include_directories(usermod_${MOD_NAME} INTERFACE
${CMAKE_CURRENT_LIST_DIR}
)
target_compile_definitions(usermod_${MOD_NAME} INTERFACE
MODULE_${MOD_NAME_UPPER}_ENABLED=1
)
target_link_libraries(usermod INTERFACE usermod_${MOD_NAME})

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@ -0,0 +1,13 @@
set(MOD_NAME breakout_as7262)
BREAKOUT_MOD_DIR := $(USERMOD_DIR)
# Add our source files to the respective variables.
SRC_USERMOD += $(BREAKOUT_MOD_DIR)/${MOD_NAME}.c
SRC_USERMOD_CXX += $(BREAKOUT_MOD_DIR)/${MOD_NAME}.cpp
# Add our module directory to the include path.
CFLAGS_USERMOD += -I$(BREAKOUT_MOD_DIR)
CXXFLAGS_USERMOD += -I$(BREAKOUT_MOD_DIR)
# We use C++ features so have to link against the standard library.
LDFLAGS_USERMOD += -lstdc++

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@ -23,6 +23,8 @@ include(breakout_sgp30/micropython)
include(breakout_colourlcd240x240/micropython)
include(breakout_bh1745/micropython)
include(breakout_bme68x/micropython)
include(breakout_bme280/micropython)
include(breakout_bmp280/micropython)
include(pico_scroll/micropython)
include(pico_rgb_keypad/micropython)