BOSCH BSEC integration

This commit is contained in:
Klaus K Wilting 2018-11-22 23:37:53 +01:00
parent e9cdeea2fb
commit 8f201e066f
58 changed files with 168 additions and 67 deletions

View File

@ -1,15 +0,0 @@
#ifndef _BME680_H
#define _BME680_H
#include "globals.h"
#include <Wire.h>
#include <Adafruit_Sensor.h>
#include "Adafruit_BME680.h"
extern bmeStatus_t
bme_status; // Make struct for storing gps data globally available
void bme_init();
bool bme_read();
#endif

23
include/bme680mems.h Normal file
View File

@ -0,0 +1,23 @@
#ifndef _BME680MEMS_H
#define _BME680MEMS_H
#include "globals.h"
#include <Wire.h>
#include "bme680.h"
#include "bsec_interface.h"
#include "bsec_datatypes.h"
//#include "bme680_defs.h"
//#include "bme680.c"
extern bmeStatus_t
bme_status; // Make struct for storing gps data globally available
void bme_init();
bool bme_read();
void user_delay_ms(uint32_t period);
int8_t user_i2c_read(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data,
uint16_t len);
int8_t user_i2c_write(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data,
uint16_t len);
#endif

View File

@ -95,7 +95,7 @@ extern TaskHandle_t irqHandlerTask, wifiSwitchTask;
#endif
#ifdef HAS_BME
#include "bme680.h"
#include "bme680mems.h"
#endif
#ifdef HAS_LORA

View File

@ -50,13 +50,9 @@ lib_deps_rgbled =
SmartLeds@>=1.1.3
lib_deps_gps =
TinyGPSPlus@>=1.0.2
lib_deps_sensors =
Adafruit Unified Sensor@^1.0.2
Adafruit BME680 Library@^1.0.7
lib_deps_basic =
ArduinoJson@^5.13.1
Time@>=1.5
${common.lib_deps_sensors}
lib_deps_all =
${common.lib_deps_basic}
${common.lib_deps_lora}
@ -64,6 +60,8 @@ lib_deps_all =
${common.lib_deps_rgbled}
${common.lib_deps_gps}
build_flags =
-Llib/Bosch-BSEC
-llibalgobsec.a
-include src/hal/${PIOENV}.h
-include src/paxcounter.conf
-w

View File

@ -1,44 +0,0 @@
#ifdef HAS_BME
#include "bme680.h"
// Local logging tag
static const char TAG[] = "main";
#define SEALEVELPRESSURE_HPA (1013.25)
// I2C Bus interface
Adafruit_BME680 bme;
bmeStatus_t bme_status;
void bme_init(void) {
// initialize BME680 sensor using default i2c address 0x77
if (bme.begin(HAS_BME)) {
// Set up oversampling and filter initialization
bme.setTemperatureOversampling(BME680_OS_8X);
bme.setHumidityOversampling(BME680_OS_2X);
bme.setPressureOversampling(BME680_OS_4X);
bme.setIIRFilterSize(BME680_FILTER_SIZE_3);
bme.setGasHeater(320, 150); // 320*C for 150 ms
ESP_LOGI(TAG, "BME680 chip found and initialized");
} else
ESP_LOGE(TAG, "BME680 chip not found on i2c bus");
}
bool bme_read(void) {
bool ret = bme.performReading();
if (ret) {
// read current BME data and buffer in global struct
bme_status.temperature = bme.temperature;
bme_status.pressure = (uint16_t)(bme.pressure / 100.0); // convert Pa -> hPa
bme_status.humidity = bme.humidity;
bme_status.gas_resistance = (uint16_t)(bme.gas_resistance / 1000.0); // convert Ohm -> kOhm
ESP_LOGI(TAG, "BME680 sensor data read success");
} else {
ESP_LOGI(TAG, "BME680 sensor read error");
}
return ret;
}
#endif // HAS_BME

127
src/bme680mems.cpp Normal file
View File

@ -0,0 +1,127 @@
#ifdef HAS_BME
#include "bme680mems.h"
// Local logging tag
static const char TAG[] = "main";
bmeStatus_t bme_status;
void bme_init(void) {
// initialize BME680 sensor
struct bme680_dev gas_sensor;
Wire.begin(HAS_BME, 400000); // I2C connect to BME680 sensor with 400 KHz
// configure sensor for I2C communication
gas_sensor.dev_id = BME_ADDR;
gas_sensor.intf = BME680_I2C_INTF;
gas_sensor.read = user_i2c_read;
gas_sensor.write = user_i2c_write;
gas_sensor.delay_ms = user_delay_ms;
gas_sensor.amb_temp = 25;
int8_t rslt = BME680_OK;
rslt = bme680_init(&gas_sensor);
if (rslt == BME680_OK) {
ESP_LOGI(TAG, "BME680 sensor found");
} else {
ESP_LOGE(TAG, "BME680 sensor not found on i2c bus");
return;
}
// configure BME680 sensor in forced mode
uint8_t set_required_settings;
/* Set the temperature, pressure and humidity settings */
gas_sensor.tph_sett.os_hum = BME680_OS_2X;
gas_sensor.tph_sett.os_pres = BME680_OS_4X;
gas_sensor.tph_sett.os_temp = BME680_OS_8X;
gas_sensor.tph_sett.filter = BME680_FILTER_SIZE_3;
/* Set the remaining gas sensor settings and link the heating profile */
gas_sensor.gas_sett.run_gas = BME680_ENABLE_GAS_MEAS;
/* Create a ramp heat waveform in 3 steps */
gas_sensor.gas_sett.heatr_temp = 320; /* degree Celsius */
gas_sensor.gas_sett.heatr_dur = 150; /* milliseconds */
/* Select the power mode */
/* Must be set before writing the sensor configuration */
gas_sensor.power_mode = BME680_FORCED_MODE;
/* Set the required sensor settings needed */
set_required_settings = BME680_OST_SEL | BME680_OSP_SEL | BME680_OSH_SEL |
BME680_FILTER_SEL | BME680_GAS_SENSOR_SEL;
/* Set the desired sensor configuration */
rslt = bme680_set_sensor_settings(set_required_settings, &gas_sensor);
/* Set the power mode */
rslt = bme680_set_sensor_mode(&gas_sensor);
if (rslt == BME680_OK) {
ESP_LOGI(TAG, "BME680 sensor initialized");
} else {
ESP_LOGE(TAG, "BME680 initialization failed");
return;
}
}
bool bme_read(void) {
/*
bool ret = bme.performReading();
if (ret) {
// read current BME data and buffer in global struct
bme_status.temperature = bme.temperature;
bme_status.pressure = (uint16_t)(bme.pressure / 100.0); // convert Pa ->
hPa bme_status.humidity = bme.humidity; bme_status.gas_resistance =
(uint16_t)(bme.gas_resistance / 1000.0); // convert Ohm -> kOhm
ESP_LOGI(TAG, "BME680 sensor data read success");
} else {
ESP_LOGI(TAG, "BME680 sensor read error");
}
return ret;
*/
}
int8_t user_i2c_read(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data,
uint16_t len) {
int8_t rslt = 0; /* Return 0 for Success, non-zero for failure */
uint16_t i;
Wire.beginTransmission(dev_id);
Wire.write(reg_addr);
rslt = Wire.endTransmission();
Wire.requestFrom((int)dev_id, (int)len);
for (i = 0; (i < len) && Wire.available(); i++) {
reg_data[i] = Wire.read();
}
return rslt;
}
int8_t user_i2c_write(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data,
uint16_t len) {
int8_t rslt = 0; /* Return 0 for Success, non-zero for failure */
uint16_t i;
Wire.beginTransmission(dev_id);
Wire.write(reg_addr);
for (i = 0; i < len; i++) {
Wire.write(reg_data[i]);
}
rslt = Wire.endTransmission();
return rslt;
}
void user_delay_ms(uint32_t period) { vTaskDelay(period / portTICK_PERIOD_MS); }
#endif // HAS_BME

View File

@ -13,9 +13,16 @@
#define SPI_SCLK GPIO_NUM_18
#define SPI_CS GPIO_NUM_5
////////////// test //////////
// enable only if device has these sensors, otherwise comment these lines
#define HAS_BME 0x77 // BME680 sensor on I2C bus (default SDA=4/SCL=15); comment out if not present
#define HAS_SENSORS 1 // comment out if device has user defined sensors
// BME680 sensor on I2C bus
#define HAS_BME GPIO_NUM_21, GPIO_NUM_22 // SDA, SCL
// #define BME_ADDR BME680_I2C_ADDR_PRIMARY // i2c addr 0x76
#define BME_ADDR BME680_I2C_ADDR_SECONDARY // i2c addr 0x77
//
// user defined sensors
//#define HAS_SENSORS 1 // comment out if device has user defined sensors
////////////// test //////////
#define CFG_sx1276_radio 1 // select LoRa chip
//#define CFG_sx1272_radio 1 // select LoRa chip

View File

@ -7,7 +7,12 @@
////////////// test //////////
// enable only if device has these sensors, otherwise comment these lines
#define HAS_BME 0x77 // BME680 sensor on I2C bus (default SDA=21/SCL=22); comment out if not present
// BME680 sensor on I2C bus
#define HAS_BME GPIO_NUM_21, GPIO_NUM_22 // SDA, SCL
// #define BME_ADDR BME680_I2C_ADDR_PRIMARY // i2c addr 0x76
#define BME_ADDR BME680_I2C_ADDR_SECONDARY // i2c addr 0x77
//
// user defined sensors
//#define HAS_SENSORS 1 // comment out if device has user defined sensors
////////////// test //////////