--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main/task_bmp280.c Mon Mar 27 22:13:21 2023 +0200
@@ -0,0 +1,84 @@
+/**
+ * @file task_bmp280.c
+ * @brief The FreeRTOS task to query the BMP280 sensor.
+ */
+
+
+#include "config.h"
+
+
+static const char *TAG = "task_bmp280";
+
+SemaphoreHandle_t xSemaphoreBMP280 = NULL; ///< Semaphore BMP280 task
+EventGroupHandle_t xEventGroupBMP280; ///< Events BMP280 task
+BMP280_State *bmp280_state; ///< Public state for other tasks
+
+extern bmp280_params_t bmp280_params;
+extern bmp280_t bmp280_dev;
+
+const int TASK_BMP280_REQUEST_DONE = BIT0; ///< All requests are done.
+const int TASK_BMP280_REQUEST_TB = BIT1; ///< Request Temperature and Barometer
+
+
+
+void request_bmp280(void)
+{
+ xEventGroupClearBits(xEventGroupBMP280, TASK_BMP280_REQUEST_DONE);
+ xEventGroupSetBits(xEventGroupBMP280, TASK_BMP280_REQUEST_TB);
+}
+
+
+
+bool ready_bmp280(void)
+{
+ if (xEventGroupGetBits(xEventGroupBMP280) & TASK_BMP280_REQUEST_DONE)
+ return true;
+ return false;
+}
+
+
+
+/*
+ * Task to read BMP280 sensor on request.
+ */
+void task_bmp280(void *pvParameter)
+{
+ float pressure, temperature, humidity;
+
+ ESP_LOGI(TAG, "Starting task BMP280 sda=%d scl=%d", CONFIG_I2C_MASTER_SDA, CONFIG_I2C_MASTER_SCL);
+ bmp280_state = malloc(sizeof(BMP280_State));
+
+ bmp280_state->bmp280.valid = false;
+ bmp280_state->bmp280.fake = false;
+ bmp280_state->bmp280.address = 0;
+ bmp280_state->bmp280.error = BMP280_ERR_NONE;
+
+ /* event handler and event group for this task */
+ xEventGroupBMP280 = xEventGroupCreate();
+ EventBits_t uxBits;
+
+ /*
+ * Task loop forever.
+ */
+ ESP_LOGI(TAG, "Starting loop BMP280 sensor");
+ while (1) {
+
+ uxBits = xEventGroupWaitBits(xEventGroupBMP280, TASK_BMP280_REQUEST_TB, pdFALSE, pdFALSE, portMAX_DELAY );
+
+ if (uxBits & TASK_BMP280_REQUEST_TB) {
+
+ ESP_LOGI(TAG, "Requested BMP280 readings");
+
+ if (bmp280_read_float(&bmp280_dev, &temperature, &pressure, &humidity) != ESP_OK) {
+ ESP_LOGI(TAG, "Temperature/pressure reading failed");
+ } else {
+ ESP_LOGI(TAG, "Pressure: %.2f Pa, Temperature: %.2f C", pressure, temperature);
+ }
+ xEventGroupClearBits(xEventGroupBMP280, TASK_BMP280_REQUEST_TB);
+ xEventGroupSetBits(xEventGroupBMP280, TASK_BMP280_REQUEST_DONE);
+#if 1
+// ESP_LOGI(TAG, "Battery raw: %4d, atten: %d %.3f volt, error: %d", i2c_reading, atten, i2c_state->Batt_voltage / 1000.0, i2c_state->Batt_error);
+#endif
+ }
+ }
+}