leo/sensirion_i2c_scd4x_esp
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convenience function

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This commit is contained in:
leo 2022-03-30 22:09:02 +02:00
parent cc7035c7a9
commit 6b4c156ae0
Signed by: leo
GPG Key ID: 0DD993BFB2B307DB
3 changed files with 24 additions and 2 deletions
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4
CMakeLists.txt
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@ -1,3 +1,3 @@
idf_component_register(SRCS "sensirion_common.c" "sensirion_i2c.c" "sensirion_i2c_hal.c" "scd4x_i2c.c"
idf_component_register(SRCS "sensirion_common.c" "sensirion_i2c.c" "sensirion_i2c_hal.c" "scd4x_i2c.c" "scd4x_config.c"
INCLUDE_DIRS "include"
REQUIRES "driver")
REQUIRES driver nvs_flash)

5
include/scd4x_data.h
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@ -1,6 +1,8 @@
#ifndef SCD4X_DATA_H
#define SCD4X_DATA_H
#include "nvs_flash.h"
struct scd4x_data {
uint16_t co2;
int32_t temperature;
@ -11,7 +13,10 @@ typedef struct scd4x_data scd4x_data_t;
struct scd4x_config {
scd4x_data_t* measure;
uint16_t delay;
uint8_t mode;
};
typedef struct scd4x_config scd4x_config_t;
scd4x_config_t* get_sensor_configuration(nvs_handle_t nvs);
#endif

17
scd4x_config.c Normal file
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@ -0,0 +1,17 @@
#include "nvs_flash.h"
#include "scd4x_data.h"
scd4x_config_t* get_sensor_configuration(nvs_handle_t nvs){
scd4x_data_t* data = malloc(sizeof(scd4x_data_t));
uint16_t conf = 0;
ESP_ERROR_CHECK(nvs_get_u16(nvs, "sensor_conf", &conf));
scd4x_config_t* config = malloc(sizeof(scd4x_config_t));
*config = (scd4x_config_t) {
.measure = data,
.delay = (conf >> 2),
.mode = (conf & 0b11)
};
return config;
}