adafruit_bno055 / Adafruit_BNO055.cpp @ 5d8d461e
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/*!
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* @file Adafruit_BNO055.cpp
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*
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* @mainpage Adafruit BNO055 Orientation Sensor
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*
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* @section intro_sec Introduction
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*
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* This is a library for the BNO055 orientation sensor
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*
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* Designed specifically to work with the Adafruit BNO055 Breakout.
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*
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* Pick one up today in the adafruit shop!
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* ------> https://www.adafruit.com/product/2472
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*
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* These sensors use I2C to communicate, 2 pins are required to interface.
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*
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* Adafruit invests time and resources providing this open source code,
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* please support Adafruit andopen-source hardware by purchasing products
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* from Adafruit!
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*
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* @section author Author
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*
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* K.Townsend (Adafruit Industries)
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*
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* @section license License
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* MIT license, all text above must be included in any redistribution
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*/
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#if ARDUINO >= 100 |
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#include "Arduino.h" |
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#else
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#include "WProgram.h" |
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#endif
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#include <limits.h> |
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#include <math.h> |
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#include "Adafruit_BNO055.h" |
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/*!
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* @brief Instantiates a new Adafruit_BNO055 class
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* @param sensorID
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* @param address
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*/
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Adafruit_BNO055::Adafruit_BNO055(int32_t sensorID, uint8_t address) { |
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_sensorID = sensorID; |
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_address = address; |
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} |
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/*!
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* @brief Sets up the HW
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* @param mode
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* @return true if process is sucessfull
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*/
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bool Adafruit_BNO055::begin(adafruit_bno055_opmode_t mode) {
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/* Enable I2C */
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Wire.begin(); |
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/* BNO055 clock stretches for 500us or more! */
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#ifdef ESP8266
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/* Allow for 1000us of clock stretching */
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Wire.setClockStretchLimit(1000);
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#endif
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/* Make sure we have the right device */
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uint8_t id = read8(BNO055_CHIP_ID_ADDR); |
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if (id != BNO055_ID) {
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/* hold on for boot */
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delay(1000);
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id = read8(BNO055_CHIP_ID_ADDR); |
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if (id != BNO055_ID) {
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/* still not? ok bail */
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return false; |
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} |
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} |
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/* Switch to config mode (just in case since this is the default) */
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setMode(OPERATION_MODE_CONFIG); |
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/* Reset */
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write8(BNO055_SYS_TRIGGER_ADDR, 0x20);
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while (read8(BNO055_CHIP_ID_ADDR) != BNO055_ID) {
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delay(10);
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} |
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delay(50);
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/* Set to normal power mode */
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write8(BNO055_PWR_MODE_ADDR, POWER_MODE_NORMAL); |
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delay(10);
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write8(BNO055_PAGE_ID_ADDR, 0);
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/* Set the output units
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uint8_t unitsel = (0 << 7) | // Orientation = Android
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(0 << 4) | // Temperature = Celsius
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(0 << 2) | // Euler = Degrees
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(1 << 1) | // Gyro = Rads
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(0 << 0); // Accelerometer = m/s^2
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write8(BNO055_UNIT_SEL_ADDR, unitsel);
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*/
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/* Configure axis mapping (see section 3.4) */
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write8(BNO055_SYS_TRIGGER_ADDR, 0x0);
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delay(10);
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/* Set the requested operating mode (see section 3.3) */
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setMode(mode); |
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delay(20);
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return true; |
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} |
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/*!
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* @brief Puts the chip in the specified operating mode
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* @param mode
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*/
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void Adafruit_BNO055::setMode(adafruit_bno055_opmode_t mode) {
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_mode = mode; |
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write8(BNO055_OPR_MODE_ADDR, _mode); |
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delay(30);
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} |
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/*!
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* @brief Changes the chip's axis remap
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* @param remapcode
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*/
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void Adafruit_BNO055::setAxisRemap(
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adafruit_bno055_axis_remap_config_t remapcode) { |
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adafruit_bno055_opmode_t modeback = _mode; |
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setMode(OPERATION_MODE_CONFIG); |
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delay(25);
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write8(BNO055_AXIS_MAP_CONFIG_ADDR, remapcode); |
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delay(10);
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/* Set the requested operating mode (see section 3.3) */
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setMode(modeback); |
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delay(20);
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} |
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/*!
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* @brief Changes the chip's axis signs
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* @param remapsign
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*/
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void Adafruit_BNO055::setAxisSign(adafruit_bno055_axis_remap_sign_t remapsign) {
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adafruit_bno055_opmode_t modeback = _mode; |
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setMode(OPERATION_MODE_CONFIG); |
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delay(25);
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write8(BNO055_AXIS_MAP_SIGN_ADDR, remapsign); |
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delay(10);
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/* Set the requested operating mode (see section 3.3) */
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setMode(modeback); |
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delay(20);
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} |
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/*!
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* @brief Use the external 32.768KHz crystal
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* @param usextal boolean
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*/
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void Adafruit_BNO055::setExtCrystalUse(boolean usextal) {
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adafruit_bno055_opmode_t modeback = _mode; |
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/* Switch to config mode (just in case since this is the default) */
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setMode(OPERATION_MODE_CONFIG); |
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delay(25);
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write8(BNO055_PAGE_ID_ADDR, 0);
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if (usextal) {
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write8(BNO055_SYS_TRIGGER_ADDR, 0x80);
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} else {
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write8(BNO055_SYS_TRIGGER_ADDR, 0x00);
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} |
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delay(10);
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/* Set the requested operating mode (see section 3.3) */
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setMode(modeback); |
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delay(20);
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} |
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/*!
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* @brief Gets the latest system status info
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* @param system_status
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* @param self_test_result
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* @param system_error
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*/
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void Adafruit_BNO055::getSystemStatus(uint8_t *system_status,
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uint8_t *self_test_result, |
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uint8_t *system_error) { |
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write8(BNO055_PAGE_ID_ADDR, 0);
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/* System Status (see section 4.3.58)
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0 = Idle
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1 = System Error
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2 = Initializing Peripherals
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3 = System Iniitalization
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4 = Executing Self-Test
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5 = Sensor fusio algorithm running
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6 = System running without fusion algorithms
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*/
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if (system_status != 0) |
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*system_status = read8(BNO055_SYS_STAT_ADDR); |
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/* Self Test Results
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1 = test passed, 0 = test failed
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Bit 0 = Accelerometer self test
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Bit 1 = Magnetometer self test
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Bit 2 = Gyroscope self test
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Bit 3 = MCU self test
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0x0F = all good!
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*/
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if (self_test_result != 0) |
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*self_test_result = read8(BNO055_SELFTEST_RESULT_ADDR); |
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/* System Error (see section 4.3.59)
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0 = No error
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1 = Peripheral initialization error
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2 = System initialization error
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3 = Self test result failed
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4 = Register map value out of range
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5 = Register map address out of range
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6 = Register map write error
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7 = BNO low power mode not available for selected operat ion mode
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8 = Accelerometer power mode not available
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9 = Fusion algorithm configuration error
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A = Sensor configuration error
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*/
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if (system_error != 0) |
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*system_error = read8(BNO055_SYS_ERR_ADDR); |
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delay(200);
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} |
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/*!
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* @brief Gets the chip revision numbers
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*/
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void Adafruit_BNO055::getRevInfo(adafruit_bno055_rev_info_t *info) {
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uint8_t a, b; |
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memset(info, 0, sizeof(adafruit_bno055_rev_info_t)); |
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/* Check the accelerometer revision */
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info->accel_rev = read8(BNO055_ACCEL_REV_ID_ADDR); |
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/* Check the magnetometer revision */
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info->mag_rev = read8(BNO055_MAG_REV_ID_ADDR); |
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/* Check the gyroscope revision */
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info->gyro_rev = read8(BNO055_GYRO_REV_ID_ADDR); |
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/* Check the SW revision */
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info->bl_rev = read8(BNO055_BL_REV_ID_ADDR); |
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a = read8(BNO055_SW_REV_ID_LSB_ADDR); |
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b = read8(BNO055_SW_REV_ID_MSB_ADDR); |
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info->sw_rev = (((uint16_t)b) << 8) | ((uint16_t)a);
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} |
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/*!
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* @brief Gets current calibration state. Each value should be a uint8_t
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* pointer and it will be set to 0 if not calibrated and 3 if
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* fully calibrated.
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* @param sys
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* @param gyro
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* @param accel
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* @param mag
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*/
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void Adafruit_BNO055::getCalibration(uint8_t *sys, uint8_t *gyro,
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uint8_t *accel, uint8_t *mag) { |
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uint8_t calData = read8(BNO055_CALIB_STAT_ADDR); |
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if (sys != NULL) { |
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*sys = (calData >> 6) & 0x03; |
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} |
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if (gyro != NULL) { |
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*gyro = (calData >> 4) & 0x03; |
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} |
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if (accel != NULL) { |
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*accel = (calData >> 2) & 0x03; |
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} |
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if (mag != NULL) { |
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*mag = calData & 0x03;
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} |
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} |
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/*!
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* @brief Gets the temperature in degrees celsius
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* @return temperature in degrees celsius
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*/
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int8_t Adafruit_BNO055::getTemp() { |
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int8_t temp = (int8_t)(read8(BNO055_TEMP_ADDR)); |
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return temp;
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} |
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/*!
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* @brief Gets a vector reading from the specified source
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* @param vector_type
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* @return vector from specified source
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*/
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imu::Vector<3> Adafruit_BNO055::getVector(adafruit_vector_type_t vector_type) {
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imu::Vector<3> xyz;
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uint8_t buffer[6];
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memset(buffer, 0, 6); |
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int16_t x, y, z; |
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x = y = z = 0;
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/* Read vector data (6 bytes) */
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readLen((adafruit_bno055_reg_t)vector_type, buffer, 6);
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x = ((int16_t)buffer[0]) | (((int16_t)buffer[1]) << 8); |
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y = ((int16_t)buffer[2]) | (((int16_t)buffer[3]) << 8); |
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z = ((int16_t)buffer[4]) | (((int16_t)buffer[5]) << 8); |
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/*!
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* Convert the value to an appropriate range (section 3.6.4)
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* and assign the value to the Vector type
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*/
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switch (vector_type) {
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case VECTOR_MAGNETOMETER:
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/* 1uT = 16 LSB */
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xyz[0] = ((double)x) / 16.0; |
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xyz[1] = ((double)y) / 16.0; |
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xyz[2] = ((double)z) / 16.0; |
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break;
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case VECTOR_GYROSCOPE:
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/* 1dps = 16 LSB */
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xyz[0] = ((double)x) / 16.0; |
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xyz[1] = ((double)y) / 16.0; |
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xyz[2] = ((double)z) / 16.0; |
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break;
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case VECTOR_EULER:
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/* 1 degree = 16 LSB */
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xyz[0] = ((double)x) / 16.0; |
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xyz[1] = ((double)y) / 16.0; |
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xyz[2] = ((double)z) / 16.0; |
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break;
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case VECTOR_ACCELEROMETER:
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case VECTOR_LINEARACCEL:
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case VECTOR_GRAVITY:
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/* 1m/s^2 = 100 LSB */
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xyz[0] = ((double)x) / 100.0; |
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xyz[1] = ((double)y) / 100.0; |
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xyz[2] = ((double)z) / 100.0; |
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break;
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} |
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return xyz;
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} |
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/*!
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* @brief Gets a quaternion reading from the specified source
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* @return quaternion reading
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*/
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imu::Quaternion Adafruit_BNO055::getQuat() { |
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uint8_t buffer[8];
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memset(buffer, 0, 8); |
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int16_t x, y, z, w; |
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x = y = z = w = 0;
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/* Read quat data (8 bytes) */
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readLen(BNO055_QUATERNION_DATA_W_LSB_ADDR, buffer, 8);
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w = (((uint16_t)buffer[1]) << 8) | ((uint16_t)buffer[0]); |
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x = (((uint16_t)buffer[3]) << 8) | ((uint16_t)buffer[2]); |
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y = (((uint16_t)buffer[5]) << 8) | ((uint16_t)buffer[4]); |
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z = (((uint16_t)buffer[7]) << 8) | ((uint16_t)buffer[6]); |
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/*!
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* Assign to Quaternion
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* See
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* http://ae-bst.resource.bosch.com/media/products/dokumente/bno055/BST_BNO055_DS000_12~1.pdf
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* 3.6.5.5 Orientation (Quaternion)
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*/
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const double scale = (1.0 / (1 << 14)); |
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imu::Quaternion quat(scale * w, scale * x, scale * y, scale * z); |
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return quat;
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} |
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/*!
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* @brief Provides the sensor_t data for this sensor
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* @param sensor
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*/
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void Adafruit_BNO055::getSensor(sensor_t *sensor) {
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/* Clear the sensor_t object */
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memset(sensor, 0, sizeof(sensor_t)); |
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/* Insert the sensor name in the fixed length char array */
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strncpy(sensor->name, "BNO055", sizeof(sensor->name) - 1); |
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sensor->name[sizeof(sensor->name) - 1] = 0; |
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sensor->version = 1;
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sensor->sensor_id = _sensorID; |
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sensor->type = SENSOR_TYPE_ORIENTATION; |
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sensor->min_delay = 0;
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sensor->max_value = 0.0F; |
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sensor->min_value = 0.0F; |
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sensor->resolution = 0.01F; |
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} |
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/*!
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* @brief Reads the sensor and returns the data as a sensors_event_t
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* @param event
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* @return always returns true
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*/
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bool Adafruit_BNO055::getEvent(sensors_event_t *event) {
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/* Clear the event */
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memset(event, 0, sizeof(sensors_event_t)); |
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event->version = sizeof(sensors_event_t);
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event->sensor_id = _sensorID; |
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event->type = SENSOR_TYPE_ORIENTATION; |
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event->timestamp = millis(); |
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/* Get a Euler angle sample for orientation */
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imu::Vector<3> euler = getVector(Adafruit_BNO055::VECTOR_EULER);
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event->orientation.x = euler.x(); |
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event->orientation.y = euler.y(); |
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event->orientation.z = euler.z(); |
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return true; |
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} |
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/*!
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* @brief Reads the sensor's offset registers into a byte array
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* @param calibData
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* @return true if read is successful
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*/
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bool Adafruit_BNO055::getSensorOffsets(uint8_t *calibData) {
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if (isFullyCalibrated()) {
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adafruit_bno055_opmode_t lastMode = _mode; |
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setMode(OPERATION_MODE_CONFIG); |
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readLen(ACCEL_OFFSET_X_LSB_ADDR, calibData, NUM_BNO055_OFFSET_REGISTERS); |
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setMode(lastMode); |
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return true; |
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} |
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return false; |
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} |
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|
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/*!
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* @brief Reads the sensor's offset registers into an offset struct
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* @param offsets_type
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* @return true if read is successful
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*/
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bool Adafruit_BNO055::getSensorOffsets(
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adafruit_bno055_offsets_t &offsets_type) { |
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if (isFullyCalibrated()) {
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449 |
adafruit_bno055_opmode_t lastMode = _mode; |
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setMode(OPERATION_MODE_CONFIG); |
451 |
delay(25);
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|
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/* Accel offset range depends on the G-range:
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+/-2g = +/- 2000 mg
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+/-4g = +/- 4000 mg
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+/-8g = +/- 8000 mg
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+/-1§g = +/- 16000 mg */
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offsets_type.accel_offset_x = (read8(ACCEL_OFFSET_X_MSB_ADDR) << 8) |
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(read8(ACCEL_OFFSET_X_LSB_ADDR)); |
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offsets_type.accel_offset_y = (read8(ACCEL_OFFSET_Y_MSB_ADDR) << 8) |
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(read8(ACCEL_OFFSET_Y_LSB_ADDR)); |
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offsets_type.accel_offset_z = (read8(ACCEL_OFFSET_Z_MSB_ADDR) << 8) |
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(read8(ACCEL_OFFSET_Z_LSB_ADDR)); |
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|
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/* Magnetometer offset range = +/- 6400 LSB where 1uT = 16 LSB */
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offsets_type.mag_offset_x = |
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(read8(MAG_OFFSET_X_MSB_ADDR) << 8) | (read8(MAG_OFFSET_X_LSB_ADDR));
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offsets_type.mag_offset_y = |
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(read8(MAG_OFFSET_Y_MSB_ADDR) << 8) | (read8(MAG_OFFSET_Y_LSB_ADDR));
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offsets_type.mag_offset_z = |
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(read8(MAG_OFFSET_Z_MSB_ADDR) << 8) | (read8(MAG_OFFSET_Z_LSB_ADDR));
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|
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/* Gyro offset range depends on the DPS range:
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2000 dps = +/- 32000 LSB
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1000 dps = +/- 16000 LSB
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500 dps = +/- 8000 LSB
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250 dps = +/- 4000 LSB
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125 dps = +/- 2000 LSB
|
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... where 1 DPS = 16 LSB */
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offsets_type.gyro_offset_x = |
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(read8(GYRO_OFFSET_X_MSB_ADDR) << 8) | (read8(GYRO_OFFSET_X_LSB_ADDR));
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offsets_type.gyro_offset_y = |
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(read8(GYRO_OFFSET_Y_MSB_ADDR) << 8) | (read8(GYRO_OFFSET_Y_LSB_ADDR));
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offsets_type.gyro_offset_z = |
485 |
(read8(GYRO_OFFSET_Z_MSB_ADDR) << 8) | (read8(GYRO_OFFSET_Z_LSB_ADDR));
|
486 |
|
487 |
/* Accelerometer radius = +/- 1000 LSB */
|
488 |
offsets_type.accel_radius = |
489 |
(read8(ACCEL_RADIUS_MSB_ADDR) << 8) | (read8(ACCEL_RADIUS_LSB_ADDR));
|
490 |
|
491 |
/* Magnetometer radius = +/- 960 LSB */
|
492 |
offsets_type.mag_radius = |
493 |
(read8(MAG_RADIUS_MSB_ADDR) << 8) | (read8(MAG_RADIUS_LSB_ADDR));
|
494 |
|
495 |
setMode(lastMode); |
496 |
return true; |
497 |
} |
498 |
return false; |
499 |
} |
500 |
|
501 |
/*!
|
502 |
* @brief Writes an array of calibration values to the sensor's offset registers
|
503 |
* @param calibData
|
504 |
*/
|
505 |
void Adafruit_BNO055::setSensorOffsets(const uint8_t *calibData) { |
506 |
adafruit_bno055_opmode_t lastMode = _mode; |
507 |
setMode(OPERATION_MODE_CONFIG); |
508 |
delay(25);
|
509 |
|
510 |
/* Note: Configuration will take place only when user writes to the last
|
511 |
byte of each config data pair (ex. ACCEL_OFFSET_Z_MSB_ADDR, etc.).
|
512 |
Therefore the last byte must be written whenever the user wants to
|
513 |
changes the configuration. */
|
514 |
|
515 |
/* A writeLen() would make this much cleaner */
|
516 |
write8(ACCEL_OFFSET_X_LSB_ADDR, calibData[0]);
|
517 |
write8(ACCEL_OFFSET_X_MSB_ADDR, calibData[1]);
|
518 |
write8(ACCEL_OFFSET_Y_LSB_ADDR, calibData[2]);
|
519 |
write8(ACCEL_OFFSET_Y_MSB_ADDR, calibData[3]);
|
520 |
write8(ACCEL_OFFSET_Z_LSB_ADDR, calibData[4]);
|
521 |
write8(ACCEL_OFFSET_Z_MSB_ADDR, calibData[5]);
|
522 |
|
523 |
write8(MAG_OFFSET_X_LSB_ADDR, calibData[6]);
|
524 |
write8(MAG_OFFSET_X_MSB_ADDR, calibData[7]);
|
525 |
write8(MAG_OFFSET_Y_LSB_ADDR, calibData[8]);
|
526 |
write8(MAG_OFFSET_Y_MSB_ADDR, calibData[9]);
|
527 |
write8(MAG_OFFSET_Z_LSB_ADDR, calibData[10]);
|
528 |
write8(MAG_OFFSET_Z_MSB_ADDR, calibData[11]);
|
529 |
|
530 |
write8(GYRO_OFFSET_X_LSB_ADDR, calibData[12]);
|
531 |
write8(GYRO_OFFSET_X_MSB_ADDR, calibData[13]);
|
532 |
write8(GYRO_OFFSET_Y_LSB_ADDR, calibData[14]);
|
533 |
write8(GYRO_OFFSET_Y_MSB_ADDR, calibData[15]);
|
534 |
write8(GYRO_OFFSET_Z_LSB_ADDR, calibData[16]);
|
535 |
write8(GYRO_OFFSET_Z_MSB_ADDR, calibData[17]);
|
536 |
|
537 |
write8(ACCEL_RADIUS_LSB_ADDR, calibData[18]);
|
538 |
write8(ACCEL_RADIUS_MSB_ADDR, calibData[19]);
|
539 |
|
540 |
write8(MAG_RADIUS_LSB_ADDR, calibData[20]);
|
541 |
write8(MAG_RADIUS_MSB_ADDR, calibData[21]);
|
542 |
|
543 |
setMode(lastMode); |
544 |
} |
545 |
|
546 |
/*!
|
547 |
* @brief Writes to the sensor's offset registers from an offset struct
|
548 |
* @param offsets_type
|
549 |
*/
|
550 |
void Adafruit_BNO055::setSensorOffsets(
|
551 |
const adafruit_bno055_offsets_t &offsets_type) {
|
552 |
adafruit_bno055_opmode_t lastMode = _mode; |
553 |
setMode(OPERATION_MODE_CONFIG); |
554 |
delay(25);
|
555 |
|
556 |
/* Note: Configuration will take place only when user writes to the last
|
557 |
byte of each config data pair (ex. ACCEL_OFFSET_Z_MSB_ADDR, etc.).
|
558 |
Therefore the last byte must be written whenever the user wants to
|
559 |
changes the configuration. */
|
560 |
|
561 |
write8(ACCEL_OFFSET_X_LSB_ADDR, (offsets_type.accel_offset_x) & 0x0FF);
|
562 |
write8(ACCEL_OFFSET_X_MSB_ADDR, (offsets_type.accel_offset_x >> 8) & 0x0FF); |
563 |
write8(ACCEL_OFFSET_Y_LSB_ADDR, (offsets_type.accel_offset_y) & 0x0FF);
|
564 |
write8(ACCEL_OFFSET_Y_MSB_ADDR, (offsets_type.accel_offset_y >> 8) & 0x0FF); |
565 |
write8(ACCEL_OFFSET_Z_LSB_ADDR, (offsets_type.accel_offset_z) & 0x0FF);
|
566 |
write8(ACCEL_OFFSET_Z_MSB_ADDR, (offsets_type.accel_offset_z >> 8) & 0x0FF); |
567 |
|
568 |
write8(MAG_OFFSET_X_LSB_ADDR, (offsets_type.mag_offset_x) & 0x0FF);
|
569 |
write8(MAG_OFFSET_X_MSB_ADDR, (offsets_type.mag_offset_x >> 8) & 0x0FF); |
570 |
write8(MAG_OFFSET_Y_LSB_ADDR, (offsets_type.mag_offset_y) & 0x0FF);
|
571 |
write8(MAG_OFFSET_Y_MSB_ADDR, (offsets_type.mag_offset_y >> 8) & 0x0FF); |
572 |
write8(MAG_OFFSET_Z_LSB_ADDR, (offsets_type.mag_offset_z) & 0x0FF);
|
573 |
write8(MAG_OFFSET_Z_MSB_ADDR, (offsets_type.mag_offset_z >> 8) & 0x0FF); |
574 |
|
575 |
write8(GYRO_OFFSET_X_LSB_ADDR, (offsets_type.gyro_offset_x) & 0x0FF);
|
576 |
write8(GYRO_OFFSET_X_MSB_ADDR, (offsets_type.gyro_offset_x >> 8) & 0x0FF); |
577 |
write8(GYRO_OFFSET_Y_LSB_ADDR, (offsets_type.gyro_offset_y) & 0x0FF);
|
578 |
write8(GYRO_OFFSET_Y_MSB_ADDR, (offsets_type.gyro_offset_y >> 8) & 0x0FF); |
579 |
write8(GYRO_OFFSET_Z_LSB_ADDR, (offsets_type.gyro_offset_z) & 0x0FF);
|
580 |
write8(GYRO_OFFSET_Z_MSB_ADDR, (offsets_type.gyro_offset_z >> 8) & 0x0FF); |
581 |
|
582 |
write8(ACCEL_RADIUS_LSB_ADDR, (offsets_type.accel_radius) & 0x0FF);
|
583 |
write8(ACCEL_RADIUS_MSB_ADDR, (offsets_type.accel_radius >> 8) & 0x0FF); |
584 |
|
585 |
write8(MAG_RADIUS_LSB_ADDR, (offsets_type.mag_radius) & 0x0FF);
|
586 |
write8(MAG_RADIUS_MSB_ADDR, (offsets_type.mag_radius >> 8) & 0x0FF); |
587 |
|
588 |
setMode(lastMode); |
589 |
} |
590 |
|
591 |
/*!
|
592 |
* @brief Checks of all cal status values are set to 3 (fully calibrated)
|
593 |
* @return status of calibration
|
594 |
*/
|
595 |
bool Adafruit_BNO055::isFullyCalibrated() {
|
596 |
uint8_t system, gyro, accel, mag; |
597 |
getCalibration(&system, &gyro, &accel, &mag); |
598 |
if (system < 3 || gyro < 3 || accel < 3 || mag < 3) |
599 |
return false; |
600 |
return true; |
601 |
} |
602 |
|
603 |
/*!
|
604 |
* @brief Writes an 8 bit value over I2C
|
605 |
*/
|
606 |
bool Adafruit_BNO055::write8(adafruit_bno055_reg_t reg, byte value) {
|
607 |
Wire.beginTransmission(_address); |
608 |
#if ARDUINO >= 100 |
609 |
Wire.write((uint8_t)reg); |
610 |
Wire.write((uint8_t)value); |
611 |
#else
|
612 |
Wire.send(reg); |
613 |
Wire.send(value); |
614 |
#endif
|
615 |
Wire.endTransmission(); |
616 |
|
617 |
/* ToDo: Check for error! */
|
618 |
return true; |
619 |
} |
620 |
|
621 |
/*!
|
622 |
* @brief Reads an 8 bit value over I2C
|
623 |
*/
|
624 |
byte Adafruit_BNO055::read8(adafruit_bno055_reg_t reg) { |
625 |
byte value = 0;
|
626 |
|
627 |
Wire.beginTransmission(_address); |
628 |
#if ARDUINO >= 100 |
629 |
Wire.write((uint8_t)reg); |
630 |
#else
|
631 |
Wire.send(reg); |
632 |
#endif
|
633 |
Wire.endTransmission(); |
634 |
Wire.requestFrom(_address, (byte)1);
|
635 |
#if ARDUINO >= 100 |
636 |
value = Wire.read(); |
637 |
#else
|
638 |
value = Wire.receive(); |
639 |
#endif
|
640 |
|
641 |
return value;
|
642 |
} |
643 |
|
644 |
/*!
|
645 |
* @brief Reads the specified number of bytes over I2C
|
646 |
*/
|
647 |
bool Adafruit_BNO055::readLen(adafruit_bno055_reg_t reg, byte *buffer,
|
648 |
uint8_t len) { |
649 |
Wire.beginTransmission(_address); |
650 |
#if ARDUINO >= 100 |
651 |
Wire.write((uint8_t)reg); |
652 |
#else
|
653 |
Wire.send(reg); |
654 |
#endif
|
655 |
Wire.endTransmission(); |
656 |
Wire.requestFrom(_address, (byte)len); |
657 |
|
658 |
for (uint8_t i = 0; i < len; i++) { |
659 |
#if ARDUINO >= 100 |
660 |
buffer[i] = Wire.read(); |
661 |
#else
|
662 |
buffer[i] = Wire.receive(); |
663 |
#endif
|
664 |
} |
665 |
|
666 |
/* ToDo: Check for errors! */
|
667 |
return true; |
668 |
} |