leo/sensirion_i2c_scd4x_esp
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This commit is contained in:
leo 2022-12-24 13:45:30 +01:00
parent 02967d4449
commit dcc43d7fbc
Signed by: leo
GPG Key ID: 0DD993BFB2B307DB
3 changed files with 53 additions and 1 deletions
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2
CMakeLists.txt
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idf_component_register(SRCS "sensirion_common.c" "sensirion_i2c.c" "sensirion_i2c_hal.c" "scd4x_i2c.c" "scd4x_config.c"
idf_component_register(SRCS "sensirion_common.c" "sensirion_i2c.c" "sensirion_i2c_hal.c" "scd4x_i2c.c" "scd4x_config.c" "scd4x_util.c"
INCLUDE_DIRS "include"
REQUIRES driver nvs_flash)

10
include/scd4x_util.h Normal file
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#ifndef SCD4X_UTIL_H
#define SCD4X_UTIL_H
#include "scd4x_data.h"
void update_scd4x_measures(scd4x_data_t* data);
void start_scd4x_measure(scd4x_config_t* conf);
void scd4x_wait_wake_up();
#endif

42
scd4x_util.c Normal file
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#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "esp_log.h"
#include "scd4x_data.h"
#include "scd4x_i2c.h"
void update_scd4x_measures(scd4x_data_t* data){
uint16_t dataReady;
scd4x_get_data_ready_status(&dataReady);
if(!(dataReady & 0x07FF)){
ESP_LOGI("MAIN", "no new sensor data");
return;
}
int16_t error = scd4x_read_measurement(&data->co2, &data->temperature, &data->humidity);
if (error) ESP_LOGE("sensor fetch", "Error executing scd4x_read_measurement(): %i\n", error);
}
void scd4x_wait_wake_up(){
scd4x_wake_up();
for(int i=0; i<5; i++){
uint16_t s0, s1, s2;
int16_t res=scd4x_get_serial_number(&s0, &s1, &s2);
if(res == 0) break;
vTaskDelay(500 / portTICK_PERIOD_MS);
}
}
void start_scd4x_measure(scd4x_config_t* conf){
switch(conf->mode){
case SCD4X_NORMAL_MODE:
ESP_ERROR_CHECK(scd4x_start_periodic_measurement());
ESP_LOGI("scd4x init","started in normal mode");
break;
case SCD4X_LP_MODE:
ESP_ERROR_CHECK(scd4x_start_low_power_periodic_measurement());
ESP_LOGI("scd4x init","started in low power mode");
break;
}
conf->enabled = true;
}