Delete bme680_callback_spi.c
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/**
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* Simple example with one sensor connected to SPI bus 1
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* using BME680 driver and callback function to get the results.
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*
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* Harware configuration:
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*
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* ESP8266 BME680
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* GPIO 12 (MISO) <- SDO
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* GPIO 13 (MOSI) -> SDI
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* GPIO 14 (SCK) -> SCK
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* GPIO 2 (CS) -> CS
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*/
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#include "espressif/esp_common.h"
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#include "esp/uart.h"
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// include BME680 driver
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#include "bme680/bme680_drv.h"
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#define SPI_BUS 1
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#define SPI_CS_GPIO 2 // GPIO 15, the default CS of SPI bus 1, can't be used
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#define BME680_ADDR1 0x76
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#define BME680_ADDR2 0x77 // default
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static uint32_t sensor;
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/**
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* Everything you need is a callback function that can handle
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* callbacks from the background measurement task of the
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* BME680 driver. This function is called periodically
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* and delivers the actual and average sensor value sets for
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* given sensor.
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*/
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static void my_callback_function (uint32_t sensor,
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bme680_value_set_t actual,
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bme680_value_set_t average)
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{
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printf("%.3f Sensor %d: %.2f (%.2f) C, %.2f (%.2f) Percent, %.2f (%.2f) hPa, %.2f (%.2f) Ohm\n",
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(double)sdk_system_get_time()*1e-3, sensor,
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actual.temperature, average.temperature,
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actual.humidity, average.humidity,
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actual.pressure, average.pressure,
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actual.gas, average.gas);
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}
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void user_init(void)
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{
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// Set UART Parameter
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uart_set_baud(0, 115200);
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// Give the UART some time to settle
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sdk_os_delay_us(500);
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/** Please note:
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* Function *bme680_create_sensor* returns a value greater or equal 0
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* on succes, all other *bme680_* functions return true on success. Using
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* these return values, you could realize an error handling. Error
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* handling is not realized in this example due to readability reasons.
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*/
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/** -- MANDATORY PART -- */
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// Init BME680 driver itself.
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bme680_init_driver();
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// Create the sensor at bus SPI_BUS with SPI_CS_GPIO as CS signal.
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// Parameter *addr* has to be 0 in case of SPI bus.
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sensor = bme680_create_sensor (SPI_BUS, 0, SPI_CS_GPIO);
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// Register the callback function to get measurement results.
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bme680_set_callback_function (sensor, &my_callback_function);
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// That's it.
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/** -- OPTIONAL PART -- */
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// Change the period of measurements (default 1000 ms) to 500 ms.
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bme680_set_measurement_period (sensor, 500);
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// Changes the oversampling rates (default os_1x) to 4x oversampling for
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// temperature and 2x oversampling for pressure. Humidity measurement is
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// skipped.
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bme680_set_oversampling_rates(sensor, os_4x, os_2x, none);
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// Change the IIR filter size (default iir_size_3) for temperature and
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// and pressure to 7.
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bme680_set_filter_size(sensor, iir_size_7);
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// Change the heaeter profile (default 320 degree Celcius for 150 ms) to
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// 200 degree Celcius for 100 ms.
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bme680_set_heater_profile (sensor, 200, 100);
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// That's it.
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}
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