Added I2C variants of the code

examples_I2C/forced_mode/forced_mode.ino

@@ -0,0 +1,68 @@
+/**
+ * Copyright (C) 2021 Bosch Sensortec GmbH
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ * 
+ */
+
+#include "Arduino.h"
+#include "bme68xLibrary.h"
+
+#define BME688_ADD 0x77
+
+Bme68x bme;
+
+/**
+ * @brief Initializes the sensor and hardware settings
+ */
+void setup(void)
+{
+	Wire.begin();
+	Serial.begin(115200);
+
+	while (!Serial)
+		delay(10);
+
+	/* initializes the sensor based on SPI library */
+	bme.begin(BME688_ADD, Wire);
+
+	if(bme.checkStatus())
+	{
+		if (bme.checkStatus() == BME68X_ERROR)
+		{
+			Serial.println("Sensor error:" + bme.statusString());
+			return;
+		}
+		else if (bme.checkStatus() == BME68X_WARNING)
+		{
+			Serial.println("Sensor Warning:" + bme.statusString());
+		}
+	}
+
+	/* Set the default configuration for temperature, pressure and humidity */
+	bme.setTPH();
+
+	/* Set the heater configuration to 300 deg C for 100ms for Forced mode */
+	bme.setHeaterProf(300, 100);
+
+	Serial.println("TimeStamp(ms), Temperature(deg C), Pressure(Pa), Humidity(%), Gas resistance(ohm), Status");
+}
+
+void loop(void)
+{
+	bme68xData data;
+
+	bme.setOpMode(BME68X_FORCED_MODE);
+	delayMicroseconds(bme.getMeasDur());
+
+	if (bme.fetchData())
+	{
+		bme.getData(data);
+		Serial.print(String(millis()) + ", ");
+		Serial.print(String(data.temperature) + ", ");
+		Serial.print(String(data.pressure) + ", ");
+		Serial.print(String(data.humidity) + ", ");
+		Serial.print(String(data.gas_resistance) + ", ");
+		Serial.println(data.status, HEX);
+	}
+}

examples_I2C/parallel_mode/parallel_mode.ino

@@ -0,0 +1,87 @@
+/**
+ * Copyright (C) 2021 Bosch Sensortec GmbH
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ * 
+ */
+
+#include "Arduino.h"
+#include "bme68xLibrary.h"
+
+#define NEW_GAS_MEAS (BME68X_GASM_VALID_MSK | BME68X_HEAT_STAB_MSK | BME68X_NEW_DATA_MSK)
+#define MEAS_DUR 140
+
+#define BME688_ADD 0x77
+
+Bme68x bme;
+
+/**
+ * @brief Initializes the sensor and hardware settings
+ */
+void setup(void)
+{
+	Wire.begin();
+	Serial.begin(115200);
+
+	while (!Serial)
+		delay(10);
+
+	/* initializes the sensor based on SPI library */
+	bme.begin(BME688_ADD, Wire);
+
+	if(bme.checkStatus())
+	{
+		if (bme.checkStatus() == BME68X_ERROR)
+		{
+			Serial.println("Sensor error:" + bme.statusString());
+			return;
+		}
+		else if (bme.checkStatus() == BME68X_WARNING)
+		{
+			Serial.println("Sensor Warning:" + bme.statusString());
+		}
+	}
+
+	/* Set the default configuration for temperature, pressure and humidity */
+	bme.setTPH();
+
+	/* Heater temperature in degree Celsius */
+	uint16_t tempProf[10] = { 320, 100, 100, 100, 200, 200, 200, 320, 320,
+			320 };
+	/* Multiplier to the shared heater duration */
+	uint16_t mulProf[10] = { 5, 2, 10, 30, 5, 5, 5, 5, 5, 5 };
+	/* Shared heating duration in milliseconds */
+	uint16_t sharedHeatrDur = MEAS_DUR - (bme.getMeasDur(BME68X_PARALLEL_MODE) / 1000);
+
+	bme.setHeaterProf(tempProf, mulProf, sharedHeatrDur, 10);
+	bme.setOpMode(BME68X_PARALLEL_MODE);
+
+	Serial.println("TimeStamp(ms), Temperature(deg C), Pressure(Pa), Humidity(%), Gas resistance(ohm), Status, Gas index");
+}
+
+void loop(void)
+{
+	bme68xData data;
+	uint8_t nFieldsLeft = 0;
+
+	/* data being fetched for every 140ms */
+	delay(MEAS_DUR);
+
+	if (bme.fetchData())
+	{
+		do
+		{
+			nFieldsLeft = bme.getData(data);
+			if (data.status == NEW_GAS_MEAS)
+			{
+				Serial.print(String(millis()) + ", ");
+				Serial.print(String(data.temperature) + ", ");
+				Serial.print(String(data.pressure) + ", ");
+				Serial.print(String(data.humidity) + ", ");
+				Serial.print(String(data.gas_resistance) + ", ");
+				Serial.print(String(data.status, HEX) + ", ");
+				Serial.println(data.gas_index);
+			}
+		} while (nFieldsLeft);
+	}
+}

examples_I2C/sequential_mode/sequential_mode.ino

@@ -0,0 +1,85 @@
+/**
+ * Copyright (C) 2021 Bosch Sensortec GmbH
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ * 
+ */
+
+#include "Arduino.h"
+#include "bme68xLibrary.h"
+
+#define NEW_GAS_MEAS (BME68X_GASM_VALID_MSK | BME68X_HEAT_STAB_MSK | BME68X_NEW_DATA_MSK)
+
+#define BME688_ADD 0x77
+
+Bme68x bme;
+
+/**
+ * @brief Initializes the sensor and hardware settings
+ */
+void setup(void)
+{
+	Wire.begin();
+	Serial.begin(115200);
+
+	while (!Serial)
+		delay(10);
+
+	/* Initializes the sensor based on SPI library */
+	bme.begin(BME688_ADD, Wire);
+
+	if(bme.checkStatus())
+	{
+		if (bme.checkStatus() == BME68X_ERROR)
+		{
+			Serial.println("Sensor error:" + bme.statusString());
+			return;
+		}
+		else if (bme.checkStatus() == BME68X_WARNING)
+		{
+			Serial.println("Sensor Warning:" + bme.statusString());
+		}
+	}
+
+	/* Set the default configuration for temperature, pressure and humidity */
+	bme.setTPH();
+
+	/* Heater temperature in degree Celsius */
+	uint16_t tempProf[10] = { 100, 200, 320 };
+	/* Heating duration in milliseconds */
+	uint16_t durProf[10] = { 150, 150, 150 };
+
+	bme.setSeqSleep(BME68X_ODR_250_MS);
+	bme.setHeaterProf(tempProf, durProf, 3);
+	bme.setOpMode(BME68X_SEQUENTIAL_MODE);
+
+	Serial.println("TimeStamp(ms), Temperature(deg C), Pressure(Pa), Humidity(%), Gas resistance(ohm), Status, Gas index");
+}
+
+void loop(void)
+{
+	bme68xData data;
+	uint8_t nFieldsLeft = 0;
+
+	delay(150);
+
+	if (bme.fetchData())
+	{
+		do
+		{
+			nFieldsLeft = bme.getData(data);
+			//if (data.status == NEW_GAS_MEAS)
+			{
+				Serial.print(String(millis()) + ", ");
+				Serial.print(String(data.temperature) + ", ");
+				Serial.print(String(data.pressure) + ", ");
+				Serial.print(String(data.humidity) + ", ");
+				Serial.print(String(data.gas_resistance) + ", ");
+				Serial.print(String(data.status, HEX) + ", ");
+				Serial.println(data.gas_index);
+				if(data.gas_index == 2) /* Sequential mode sleeps after this measurement */
+					delay(250);
+			}
+		} while (nFieldsLeft);
+	}
+}