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esp32 temperature node

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Alex B.
2025-10-04 00:59:04 -04:00
parent 5f384b96eb
commit 4e851affa8
1 changed files with 11 additions and 1 deletions
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12
ESP32-IDF_Temperture-Node-v2/main/hello_world_main.c
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@@ -33,6 +33,16 @@
static bme280_handle_t sensor = NULL; static bme280_handle_t sensor = NULL;
float temperature = 0.0f; float temperature = 0.0f;
i2c_config_t conf = {
.mode = I2C_MODE_MASTER,
.sda_io_num = GPIO_NUM_21,
.sda_pullup_en = GPIO_PULLUP_ENABLE,
.scl_io_num = GPIO_NUM_22,
.sda_pullup_en = GPIO_PULLUP_ENABLE,
.master.clk_speed = I2C_MASTER_FREQ_HZ,
.clk_flags= 0,
};
void app_main(void) void app_main(void)
@@ -65,7 +75,7 @@ void app_main(void)
printf("Minimum free heap size: %" PRIu32 " bytes\n", esp_get_minimum_free_heap_size()); printf("Minimum free heap size: %" PRIu32 " bytes\n", esp_get_minimum_free_heap_size());
//i2c_master_init(); //i2c_master_init();
i2c_bus_handle_t i2c_bus = i2c_bus_create(I2C_MASTER_NUM, I2C_MASTER_SDA_IO, I2C_MASTER_SCL_IO); i2c_bus_handle_t i2c_bus = i2c_bus_create(I2C_MASTER_NUM, &conf);
sensor = bme280_create(i2c_bus, BME280_SENSOR_ADDR); sensor = bme280_create(i2c_bus, BME280_SENSOR_ADDR);
ESP_ERROR_CHECK(bme280_default_init(sensor)); ESP_ERROR_CHECK(bme280_default_init(sensor));
ESP_ERROR_CHECK(bme280_read_temperature(sensor, &temperature)); ESP_ERROR_CHECK(bme280_read_temperature(sensor, &temperature));