v1.1.10

examples/Example20-Sleep/Example20-Sleep.ino

@@ -0,0 +1,105 @@
+/*
+  Using the BNO080 IMU
+  By: Nathan Seidle
+  SparkFun Electronics
+  Date: December 21st, 2017
+  SparkFun code, firmware, and software is released under the MIT License.
+	Please see LICENSE.md for further details.
+
+  Feel like supporting our work? Buy a board from SparkFun!
+  https://www.sparkfun.com/products/14586
+
+  This example shows how to output the i/j/k/real parts of the rotation vector.
+  https://en.wikipedia.org/wiki/Quaternions_and_spatial_rotation
+
+  It takes about 1ms at 400kHz I2C to read a record from the sensor, but we are polling the sensor continually
+  between updates from the sensor. Use the interrupt pin on the BNO080 breakout to avoid polling.
+
+  Hardware Connections:
+  Attach the Qwiic Shield to your Arduino/Photon/ESP32 or other
+  Plug the sensor onto the shield
+  Serial.print it out at 9600 baud to serial monitor.
+*/
+
+#include <Wire.h>
+
+#include "SparkFun_BNO080_Arduino_Library.h" // Click here to get the library: http://librarymanager/All#SparkFun_BNO080
+BNO080 myIMU;
+
+void setup()
+{
+  Serial.begin(115200);
+  Serial.println();
+  Serial.println("BNO080 Sleep Example");
+
+  Wire.begin();
+
+  //Are you using a ESP? Check this issue for more information: https://github.com/sparkfun/SparkFun_BNO080_Arduino_Library/issues/16
+//  //=================================
+//  delay(100); //  Wait for BNO to boot
+//  // Start i2c and BNO080
+//  Wire.flush();   // Reset I2C
+//  IMU.begin(BNO080_DEFAULT_ADDRESS, Wire);
+//  Wire.begin(4, 5);
+//  Wire.setClockStretchLimit(4000);
+//  //=================================
+
+  if (myIMU.begin() == false)
+  {
+    Serial.println("BNO080 not detected at default I2C address. Check your jumpers and the hookup guide. Freezing...");
+    while (1);
+  }
+
+  Wire.setClock(400000); //Increase I2C data rate to 400kHz
+
+  myIMU.enableRotationVector(50); //Send data update every 50ms
+
+  Serial.println(F("Rotation vector enabled"));
+  Serial.println(F("Output in form i, j, k, real, accuracy"));
+}
+
+unsigned long lastMillis = 0; // Keep track of time
+bool lastPowerState = true; // Toggle between "On" and "Sleep"
+
+void loop()
+{
+  //Look for reports from the IMU
+  if (myIMU.dataAvailable() == true)
+  {
+    float quatI = myIMU.getQuatI();
+    float quatJ = myIMU.getQuatJ();
+    float quatK = myIMU.getQuatK();
+    float quatReal = myIMU.getQuatReal();
+    float quatRadianAccuracy = myIMU.getQuatRadianAccuracy();
+
+    Serial.print(quatI, 2);
+    Serial.print(F(","));
+    Serial.print(quatJ, 2);
+    Serial.print(F(","));
+    Serial.print(quatK, 2);
+    Serial.print(F(","));
+    Serial.print(quatReal, 2);
+    Serial.print(F(","));
+    Serial.print(quatRadianAccuracy, 2);
+    Serial.print(F(","));
+
+    Serial.println();
+  }
+
+  //Check if it is time to change the power state
+  if (millis() > (lastMillis + 5000)) // Change state every 5 seconds
+  {
+    lastMillis = millis(); // Keep track of time
+
+    if (lastPowerState) // Are we "On"?
+    {
+      myIMU.modeSleep(); // Put BNO to sleep
+    }
+    else
+    {
+      myIMU.modeOn(); // Turn BNO back on
+    }
+
+    lastPowerState ^= 1; // Invert lastPowerState (using ex-or)
+  }
+}

keywords.txt

@@ -19,6 +19,8 @@ enableDebugging	KEYWORD2
 
 softReset	KEYWORD2
 resetReason	KEYWORD2
+modeOn	KEYWORD2
+modeSleep	KEYWORD2
 
 qToFloat	KEYWORD2
 
@@ -37,6 +39,7 @@ enableARVRStabilizedGameRotationVector	KEYWORD2
 enableAccelerometer	KEYWORD2
 enableGyro	KEYWORD2
 enableMagnetometer	KEYWORD2
+enableTapDetector	KEYWORD2
 enableStepCounter	KEYWORD2
 enableStabilityClassifier	KEYWORD2
 enableActivityClassifier	KEYWORD2
@@ -98,6 +101,7 @@ saveCalibration	KEYWORD2
 requestCalibrationStatus	KEYWORD2
 calibrationComplete	KEYWORD2
 
+getTapDetector	KEYWORD2
 getTimeStamp	KEYWORD2
 getStepCount	KEYWORD2
 getStabilityClassifier	KEYWORD2

library.properties

@@ -1,5 +1,5 @@
 name=SparkFun BNO080 Cortex Based IMU
-version=1.1.9
+version=1.1.10
 author=SparkFun Electronics <[email protected]>
 maintainer=SparkFun Electronics <sparkfun.com>
 sentence=Library for the SparkFun Qwiic VR IMU - BNO080/BNO085

src/SparkFun_BNO080_Arduino_Library.cpp

@@ -345,6 +345,10 @@ uint16_t BNO080::parseInputReport(void)
 		// not game rot vector and not ar/vr stabilized rotation vector
 		rawQuatRadianAccuracy = data5;
 	}
+	else if (shtpData[5] == SENSOR_REPORTID_TAP_DETECTOR)
+	{
+		tapDetector = shtpData[5 + 4]; //Byte 4 only
+	}
 	else if (shtpData[5] == SENSOR_REPORTID_STEP_COUNTER)
 	{
 		stepCount = data3; //Bytes 8/9
@@ -717,6 +721,14 @@ float BNO080::getFastGyroZ()
 	return (gyro);
 }
 
+//Return the tap detector
+uint8_t BNO080::getTapDetector()
+{
+	uint8_t previousTapDetector = tapDetector;
+	tapDetector = 0; //Reset so user code sees exactly one tap
+	return (previousTapDetector);
+}
+
 //Return the step count
 uint16_t BNO080::getStepCount()
 {
@@ -897,7 +909,7 @@ bool BNO080::readFRSdata(uint16_t recordID, uint8_t startLocation, uint8_t words
 			//We have the packet, inspect it for the right contents
 			//See page 40. Report ID should be 0xF3 and the FRS types should match the thing we requested
 			if (shtpData[0] == SHTP_REPORT_FRS_READ_RESPONSE)
-				if (((uint16_t)shtpData[13] << 8 | shtpData[12]) == recordID)
+				if (((((uint16_t)shtpData[13]) << 8) | shtpData[12]) == recordID)
 					break; //This packet is one we are looking for
 		}
 
@@ -951,6 +963,42 @@ void BNO080::softReset(void)
 		; //delay(1);
 }
 
+//Set the operating mode to "On"
+//(This one is for @jerabaul29)
+void BNO080::modeOn(void)
+{
+	shtpData[0] = 2; //On
+
+	//Attempt to start communication with sensor
+	sendPacket(CHANNEL_EXECUTABLE, 1); //Transmit packet on channel 1, 1 byte
+
+	//Read all incoming data and flush it
+	delay(50);
+	while (receivePacket() == true)
+		; //delay(1);
+	delay(50);
+	while (receivePacket() == true)
+		; //delay(1);
+}
+
+//Set the operating mode to "Sleep"
+//(This one is for @jerabaul29)
+void BNO080::modeSleep(void)
+{
+	shtpData[0] = 3; //Sleep
+
+	//Attempt to start communication with sensor
+	sendPacket(CHANNEL_EXECUTABLE, 1); //Transmit packet on channel 1, 1 byte
+
+	//Read all incoming data and flush it
+	delay(50);
+	while (receivePacket() == true)
+		; //delay(1);
+	delay(50);
+	while (receivePacket() == true)
+		; //delay(1);
+}
+
 //Get the reason for the last reset
 //1 = POR, 2 = Internal reset, 3 = Watchdog, 4 = External reset, 5 = Other
 uint8_t BNO080::resetReason()
@@ -1036,6 +1084,12 @@ void BNO080::enableGyroIntegratedRotationVector(uint16_t timeBetweenReports)
 	setFeatureCommand(SENSOR_REPORTID_GYRO_INTEGRATED_ROTATION_VECTOR, timeBetweenReports);
 }
 
+//Sends the packet to enable the tap detector
+void BNO080::enableTapDetector(uint16_t timeBetweenReports)
+{
+	setFeatureCommand(SENSOR_REPORTID_TAP_DETECTOR, timeBetweenReports);
+}
+
 //Sends the packet to enable the step counter
 void BNO080::enableStepCounter(uint16_t timeBetweenReports)
 {

src/SparkFun_BNO080_Arduino_Library.h

@@ -132,6 +132,8 @@ class BNO080
 
 	void softReset();	  //Try to reset the IMU via software
 	uint8_t resetReason(); //Query the IMU for the reason it last reset
+	void modeOn();	  //Use the executable channel to turn the BNO on
+	void modeSleep();	  //Use the executable channel to put the BNO to sleep
 
 	float qToFloat(int16_t fixedPointValue, uint8_t qPoint); //Given a Q value, converts fixed point floating to regular floating point number
 
@@ -151,6 +153,7 @@ class BNO080
 	void enableLinearAccelerometer(uint16_t timeBetweenReports);
 	void enableGyro(uint16_t timeBetweenReports);
 	void enableMagnetometer(uint16_t timeBetweenReports);
+	void enableTapDetector(uint16_t timeBetweenReports);
 	void enableStepCounter(uint16_t timeBetweenReports);
 	void enableStabilityClassifier(uint16_t timeBetweenReports);
 	void enableActivityClassifier(uint16_t timeBetweenReports, uint32_t activitiesToEnable, uint8_t (&activityConfidences)[9]);
@@ -211,6 +214,7 @@ class BNO080
 	void requestCalibrationStatus(); //Sends command to get status
 	boolean calibrationComplete();   //Checks ME Cal response for byte 5, R0 - Status
 
+	uint8_t getTapDetector();
 	uint32_t getTimeStamp();
 	uint16_t getStepCount();
 	uint8_t getStabilityClassifier();
@@ -276,6 +280,7 @@ class BNO080
 	uint16_t rawMagX, rawMagY, rawMagZ, magAccuracy;
 	uint16_t rawQuatI, rawQuatJ, rawQuatK, rawQuatReal, rawQuatRadianAccuracy, quatAccuracy;
 	uint16_t rawFastGyroX, rawFastGyroY, rawFastGyroZ;
+	uint8_t tapDetector;
 	uint16_t stepCount;
 	uint32_t timeStamp;
 	uint8_t stabilityClassifier;