113 lines
3.1 KiB
C
113 lines
3.1 KiB
C
#include <stdio.h>
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#include "espressif/esp_common.h"
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#include "esp/uart.h"
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#include "FreeRTOS.h"
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#include "task.h"
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#include "i2c/i2c.h"
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#include "bmp280/bmp280.h"
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// In forced mode user initiate measurement each time.
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// In normal mode measurement is done continuously with specified standby time.
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// #define MODE_FORCED
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const uint8_t scl_pin = 0;
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const uint8_t sda_pin = 2;
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#ifdef MODE_FORCED
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static void bmp280_task_forced(void *pvParameters)
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{
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bmp280_params_t params;
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float pressure, temperature, humidity;
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bmp280_init_default_params(¶ms);
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params.mode = BMP280_MODE_FORCED;
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bmp280_t bmp280_dev;
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bmp280_dev.i2c_addr = BMP280_I2C_ADDRESS_0;
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while (1) {
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while (!bmp280_init(&bmp280_dev, ¶ms)) {
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printf("BMP280 initialization failed\n");
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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bool bme280p = bmp280_dev.id == BME280_CHIP_ID;
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printf("BMP280: found %s\n", bme280p ? "BME280" : "BMP280");
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while(1) {
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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if (!bmp280_force_measurement(&bmp280_dev)) {
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printf("Failed initiating measurement\n");
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break;
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}
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// wait for measurement to complete
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while (bmp280_is_measuring(&bmp280_dev)) {};
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if (!bmp280_read_float(&bmp280_dev, &temperature, &pressure, &humidity)) {
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printf("Temperature/pressure reading failed\n");
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break;
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}
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printf("Pressure: %.2f Pa, Temperature: %.2f C", pressure, temperature);
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if (bme280p)
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printf(", Humidity: %.2f\n", humidity);
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else
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printf("\n");
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}
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}
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}
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#else
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static void bmp280_task_normal(void *pvParameters)
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{
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bmp280_params_t params;
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float pressure, temperature, humidity;
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bmp280_init_default_params(¶ms);
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bmp280_t bmp280_dev;
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bmp280_dev.i2c_addr = BMP280_I2C_ADDRESS_0;
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while (1) {
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while (!bmp280_init(&bmp280_dev, ¶ms)) {
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printf("BMP280 initialization failed\n");
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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}
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bool bme280p = bmp280_dev.id == BME280_CHIP_ID;
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printf("BMP280: found %s\n", bme280p ? "BME280" : "BMP280");
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while(1) {
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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if (!bmp280_read_float(&bmp280_dev, &temperature, &pressure, &humidity)) {
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printf("Temperature/pressure reading failed\n");
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break;
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}
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printf("Pressure: %.2f Pa, Temperature: %.2f C", pressure, temperature);
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if (bme280p)
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printf(", Humidity: %.2f\n", humidity);
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else
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printf("\n");
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}
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}
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}
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#endif
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void user_init(void)
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{
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uart_set_baud(0, 115200);
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// Just some information
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printf("\n");
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printf("SDK version : %s\n", sdk_system_get_sdk_version());
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printf("GIT version : %s\n", GITSHORTREV);
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i2c_init(scl_pin, sda_pin);
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#ifdef MODE_FORCED
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xTaskCreate(bmp280_task_forced, "bmp280_task", 256, NULL, 2, NULL);
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#else
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xTaskCreate(bmp280_task_normal, "bmp280_task", 256, NULL, 2, NULL);
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#endif
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}
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