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/***************************************************************************
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This is a library for the BNO055 orientation sensor
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Designed specifically to work with the Adafruit BNO055 Breakout.
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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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These sensors use I2C to communicate, 2 pins are required to interface.
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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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Written by KTOWN for Adafruit Industries.
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MIT license, all text above must be included in any redistribution
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***************************************************************************/
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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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#include "Adafruit_BNO055.h"
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/***************************************************************************
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CONSTRUCTOR
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***************************************************************************/
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/**************************************************************************/
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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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/**************************************************************************/
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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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PUBLIC FUNCTIONS
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***************************************************************************/
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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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/**************************************************************************/
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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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/* BNO055 clock stretches for 500us or more! */
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#ifdef ESP8266
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Wire.setClockStretchLimit(1000); // Allow for 1000us of clock stretching
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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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delay(1000); // hold on for boot
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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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return false; // still not? ok bail
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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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... | ... | |
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write8(BNO055_PAGE_ID_ADDR, 0);
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/* Set the output units */
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/*
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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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/* 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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/*
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write8(BNO055_AXIS_MAP_CONFIG_ADDR, REMAP_CONFIG_P2); // P0-P7, Default is P1
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delay(10);
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write8(BNO055_AXIS_MAP_SIGN_ADDR, REMAP_SIGN_P2); // P0-P7, Default is P1
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delay(10);
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*/
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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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... | ... | |
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return true;
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}
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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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/**************************************************************************/
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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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/*!
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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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/**************************************************************************/
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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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140 |
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adafruit_bno055_opmode_t modeback = _mode;
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... | ... | |
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delay(20);
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}
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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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/**************************************************************************/
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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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158 |
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adafruit_bno055_opmode_t modeback = _mode;
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159 |
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... | ... | |
166 |
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delay(20);
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}
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/**************************************************************************/
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/*!
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@brief Use the external 32.768KHz crystal
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172 |
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@param usextal boolean
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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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158 |
*/
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175 |
159 |
void Adafruit_BNO055::setExtCrystalUse(boolean usextal) {
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176 |
160 |
adafruit_bno055_opmode_t modeback = _mode;
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177 |
161 |
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... | ... | |
190 |
174 |
delay(20);
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}
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/**************************************************************************/
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194 |
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/*!
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195 |
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@brief Gets the latest system status info
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196 |
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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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200 |
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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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182 |
*/
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201 |
183 |
void Adafruit_BNO055::getSystemStatus(uint8_t *system_status,
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202 |
184 |
uint8_t *self_test_result,
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203 |
185 |
uint8_t *system_error) {
|
204 |
186 |
write8(BNO055_PAGE_ID_ADDR, 0);
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205 |
187 |
|
206 |
188 |
/* System Status (see section 4.3.58)
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207 |
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---------------------------------
|
208 |
189 |
0 = Idle
|
209 |
190 |
1 = System Error
|
210 |
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2 = Initializing Peripherals
|
211 |
192 |
3 = System Iniitalization
|
212 |
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4 = Executing Self-Test
|
213 |
194 |
5 = Sensor fusio algorithm running
|
214 |
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6 = System running without fusion algorithms */
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|
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6 = System running without fusion algorithms
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|
196 |
*/
|
215 |
197 |
|
216 |
198 |
if (system_status != 0)
|
217 |
199 |
*system_status = read8(BNO055_SYS_STAT_ADDR);
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218 |
200 |
|
219 |
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/* Self Test Results (see section )
|
220 |
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--------------------------------
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|
201 |
/* Self Test Results
|
221 |
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1 = test passed, 0 = test failed
|
222 |
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|
203 |
|
223 |
204 |
Bit 0 = Accelerometer self test
|
224 |
205 |
Bit 1 = Magnetometer self test
|
225 |
206 |
Bit 2 = Gyroscope self test
|
226 |
207 |
Bit 3 = MCU self test
|
227 |
|
|
228 |
|
0x0F = all good! */
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|
208 |
|
|
209 |
0x0F = all good!
|
|
210 |
*/
|
229 |
211 |
|
230 |
212 |
if (self_test_result != 0)
|
231 |
213 |
*self_test_result = read8(BNO055_SELFTEST_RESULT_ADDR);
|
232 |
214 |
|
233 |
215 |
/* System Error (see section 4.3.59)
|
234 |
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---------------------------------
|
235 |
216 |
0 = No error
|
236 |
217 |
1 = Peripheral initialization error
|
237 |
218 |
2 = System initialization error
|
... | ... | |
242 |
223 |
7 = BNO low power mode not available for selected operat ion mode
|
243 |
224 |
8 = Accelerometer power mode not available
|
244 |
225 |
9 = Fusion algorithm configuration error
|
245 |
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A = Sensor configuration error */
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|
226 |
A = Sensor configuration error
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|
227 |
*/
|
246 |
228 |
|
247 |
229 |
if (system_error != 0)
|
248 |
230 |
*system_error = read8(BNO055_SYS_ERR_ADDR);
|
... | ... | |
250 |
232 |
delay(200);
|
251 |
233 |
}
|
252 |
234 |
|
253 |
|
/**************************************************************************/
|
254 |
235 |
/*!
|
255 |
|
@brief Gets the chip revision numbers
|
256 |
|
*/
|
257 |
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/**************************************************************************/
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|
236 |
* @brief Gets the chip revision numbers
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|
237 |
*/
|
258 |
238 |
void Adafruit_BNO055::getRevInfo(adafruit_bno055_rev_info_t *info) {
|
259 |
239 |
uint8_t a, b;
|
260 |
240 |
|
... | ... | |
277 |
257 |
info->sw_rev = (((uint16_t)b) << 8) | ((uint16_t)a);
|
278 |
258 |
}
|
279 |
259 |
|
280 |
|
/**************************************************************************/
|
281 |
260 |
/*!
|
282 |
|
@brief Gets current calibration state. Each value should be a uint8_t
|
283 |
|
pointer and it will be set to 0 if not calibrated and 3 if
|
284 |
|
fully calibrated.
|
285 |
|
@param sys
|
286 |
|
@param gyro
|
287 |
|
@param accel
|
288 |
|
@param mag
|
289 |
|
*/
|
290 |
|
/**************************************************************************/
|
|
261 |
* @brief Gets current calibration state. Each value should be a uint8_t
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|
262 |
* pointer and it will be set to 0 if not calibrated and 3 if
|
|
263 |
* fully calibrated.
|
|
264 |
* @param sys
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|
265 |
* @param gyro
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|
266 |
* @param accel
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|
267 |
* @param mag
|
|
268 |
*/
|
291 |
269 |
void Adafruit_BNO055::getCalibration(uint8_t *sys, uint8_t *gyro,
|
292 |
270 |
uint8_t *accel, uint8_t *mag) {
|
293 |
271 |
uint8_t calData = read8(BNO055_CALIB_STAT_ADDR);
|
... | ... | |
305 |
283 |
}
|
306 |
284 |
}
|
307 |
285 |
|
308 |
|
/**************************************************************************/
|
309 |
286 |
/*!
|
310 |
|
@brief Gets the temperature in degrees celsius
|
311 |
|
@return temperature in degrees celsius
|
312 |
|
*/
|
313 |
|
/**************************************************************************/
|
|
287 |
* @brief Gets the temperature in degrees celsius
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|
288 |
* @return temperature in degrees celsius
|
|
289 |
*/
|
314 |
290 |
int8_t Adafruit_BNO055::getTemp() {
|
315 |
291 |
int8_t temp = (int8_t)(read8(BNO055_TEMP_ADDR));
|
316 |
292 |
return temp;
|
317 |
293 |
}
|
318 |
294 |
|
319 |
|
/**************************************************************************/
|
320 |
295 |
/*!
|
321 |
|
@brief Gets a vector reading from the specified source
|
322 |
|
@param vector_type
|
323 |
|
@return vector from specified source
|
324 |
|
*/
|
325 |
|
/**************************************************************************/
|
|
296 |
* @brief Gets a vector reading from the specified source
|
|
297 |
* @param vector_type
|
|
298 |
* @return vector from specified source
|
|
299 |
*/
|
326 |
300 |
imu::Vector<3> Adafruit_BNO055::getVector(adafruit_vector_type_t vector_type) {
|
327 |
301 |
imu::Vector<3> xyz;
|
328 |
302 |
uint8_t buffer[6];
|
... | ... | |
338 |
312 |
y = ((int16_t)buffer[2]) | (((int16_t)buffer[3]) << 8);
|
339 |
313 |
z = ((int16_t)buffer[4]) | (((int16_t)buffer[5]) << 8);
|
340 |
314 |
|
341 |
|
/* Convert the value to an appropriate range (section 3.6.4) */
|
342 |
|
/* and assign the value to the Vector type */
|
|
315 |
/*!
|
|
316 |
* Convert the value to an appropriate range (section 3.6.4)
|
|
317 |
* and assign the value to the Vector type
|
|
318 |
*/
|
343 |
319 |
switch (vector_type) {
|
344 |
320 |
case VECTOR_MAGNETOMETER:
|
345 |
321 |
/* 1uT = 16 LSB */
|
... | ... | |
372 |
348 |
return xyz;
|
373 |
349 |
}
|
374 |
350 |
|
375 |
|
/**************************************************************************/
|
376 |
351 |
/*!
|
377 |
|
@brief Gets a quaternion reading from the specified source
|
378 |
|
@return quaternion reading
|
379 |
|
*/
|
380 |
|
/**************************************************************************/
|
|
352 |
* @brief Gets a quaternion reading from the specified source
|
|
353 |
* @return quaternion reading
|
|
354 |
*/
|
381 |
355 |
imu::Quaternion Adafruit_BNO055::getQuat() {
|
382 |
356 |
uint8_t buffer[8];
|
383 |
357 |
memset(buffer, 0, 8);
|
... | ... | |
392 |
366 |
y = (((uint16_t)buffer[5]) << 8) | ((uint16_t)buffer[4]);
|
393 |
367 |
z = (((uint16_t)buffer[7]) << 8) | ((uint16_t)buffer[6]);
|
394 |
368 |
|
395 |
|
/* Assign to Quaternion */
|
396 |
|
/* See
|
397 |
|
http://ae-bst.resource.bosch.com/media/products/dokumente/bno055/BST_BNO055_DS000_12~1.pdf
|
398 |
|
3.6.5.5 Orientation (Quaternion) */
|
|
369 |
/*!
|
|
370 |
* Assign to Quaternion
|
|
371 |
* See
|
|
372 |
* http://ae-bst.resource.bosch.com/media/products/dokumente/bno055/BST_BNO055_DS000_12~1.pdf
|
|
373 |
* 3.6.5.5 Orientation (Quaternion)
|
|
374 |
*/
|
399 |
375 |
const double scale = (1.0 / (1 << 14));
|
400 |
376 |
imu::Quaternion quat(scale * w, scale * x, scale * y, scale * z);
|
401 |
377 |
return quat;
|
402 |
378 |
}
|
403 |
379 |
|
404 |
|
/**************************************************************************/
|
405 |
380 |
/*!
|
406 |
|
@brief Provides the sensor_t data for this sensor
|
407 |
|
@param sensor
|
|
381 |
* @brief Provides the sensor_t data for this sensor
|
|
382 |
* @param sensor
|
408 |
383 |
*/
|
409 |
|
/**************************************************************************/
|
410 |
384 |
void Adafruit_BNO055::getSensor(sensor_t *sensor) {
|
411 |
385 |
/* Clear the sensor_t object */
|
412 |
386 |
memset(sensor, 0, sizeof(sensor_t));
|
... | ... | |
423 |
397 |
sensor->resolution = 0.01F;
|
424 |
398 |
}
|
425 |
399 |
|
426 |
|
/**************************************************************************/
|
427 |
400 |
/*!
|
428 |
|
@brief Reads the sensor and returns the data as a sensors_event_t
|
429 |
|
@param event
|
430 |
|
@return always returns true
|
431 |
|
*/
|
432 |
|
/**************************************************************************/
|
|
401 |
* @brief Reads the sensor and returns the data as a sensors_event_t
|
|
402 |
* @param event
|
|
403 |
* @return always returns true
|
|
404 |
*/
|
433 |
405 |
bool Adafruit_BNO055::getEvent(sensors_event_t *event) {
|
434 |
406 |
/* Clear the event */
|
435 |
407 |
memset(event, 0, sizeof(sensors_event_t));
|
... | ... | |
448 |
420 |
return true;
|
449 |
421 |
}
|
450 |
422 |
|
451 |
|
/**************************************************************************/
|
452 |
423 |
/*!
|
453 |
|
@brief Reads the sensor's offset registers into a byte array
|
454 |
|
@param calibData
|
455 |
|
@return true if read is successful
|
456 |
|
*/
|
457 |
|
/**************************************************************************/
|
|
424 |
* @brief Reads the sensor's offset registers into a byte array
|
|
425 |
* @param calibData
|
|
426 |
* @return true if read is successful
|
|
427 |
*/
|
458 |
428 |
bool Adafruit_BNO055::getSensorOffsets(uint8_t *calibData) {
|
459 |
429 |
if (isFullyCalibrated()) {
|
460 |
430 |
adafruit_bno055_opmode_t lastMode = _mode;
|
... | ... | |
468 |
438 |
return false;
|
469 |
439 |
}
|
470 |
440 |
|
471 |
|
/**************************************************************************/
|
472 |
441 |
/*!
|
473 |
|
@brief Reads the sensor's offset registers into an offset struct
|
474 |
|
@param offsets_type
|
475 |
|
@return true if read is successful
|
476 |
|
*/
|
477 |
|
/**************************************************************************/
|
|
442 |
* @brief Reads the sensor's offset registers into an offset struct
|
|
443 |
* @param offsets_type
|
|
444 |
* @return true if read is successful
|
|
445 |
*/
|
478 |
446 |
bool Adafruit_BNO055::getSensorOffsets(
|
479 |
447 |
adafruit_bno055_offsets_t &offsets_type) {
|
480 |
448 |
if (isFullyCalibrated()) {
|
... | ... | |
530 |
498 |
return false;
|
531 |
499 |
}
|
532 |
500 |
|
533 |
|
/**************************************************************************/
|
534 |
501 |
/*!
|
535 |
|
@brief Writes an array of calibration values to the sensor's offset registers
|
536 |
|
@param calibData
|
537 |
|
*/
|
538 |
|
/**************************************************************************/
|
|
502 |
* @brief Writes an array of calibration values to the sensor's offset registers
|
|
503 |
* @param calibData
|
|
504 |
*/
|
539 |
505 |
void Adafruit_BNO055::setSensorOffsets(const uint8_t *calibData) {
|
540 |
506 |
adafruit_bno055_opmode_t lastMode = _mode;
|
541 |
507 |
setMode(OPERATION_MODE_CONFIG);
|
... | ... | |
577 |
543 |
setMode(lastMode);
|
578 |
544 |
}
|
579 |
545 |
|
580 |
|
/**************************************************************************/
|
581 |
546 |
/*!
|
582 |
|
@brief Writes to the sensor's offset registers from an offset struct
|
583 |
|
@param offsets_type
|
|
547 |
* @brief Writes to the sensor's offset registers from an offset struct
|
|
548 |
* @param offsets_type
|
584 |
549 |
*/
|
585 |
|
/**************************************************************************/
|
586 |
550 |
void Adafruit_BNO055::setSensorOffsets(
|
587 |
551 |
const adafruit_bno055_offsets_t &offsets_type) {
|
588 |
552 |
adafruit_bno055_opmode_t lastMode = _mode;
|
... | ... | |
624 |
588 |
setMode(lastMode);
|
625 |
589 |
}
|
626 |
590 |
|
627 |
|
/**************************************************************************/
|
628 |
591 |
/*!
|
629 |
|
@brief Checks of all cal status values are set to 3 (fully calibrated)
|
630 |
|
@return status of calibration
|
631 |
|
*/
|
632 |
|
/**************************************************************************/
|
|
592 |
* @brief Checks of all cal status values are set to 3 (fully calibrated)
|
|
593 |
* @return status of calibration
|
|
594 |
*/
|
633 |
595 |
bool Adafruit_BNO055::isFullyCalibrated() {
|
634 |
596 |
uint8_t system, gyro, accel, mag;
|
635 |
597 |
getCalibration(&system, &gyro, &accel, &mag);
|
... | ... | |
638 |
600 |
return true;
|
639 |
601 |
}
|
640 |
602 |
|
641 |
|
/***************************************************************************
|
642 |
|
PRIVATE FUNCTIONS
|
643 |
|
***************************************************************************/
|
644 |
|
|
645 |
|
/**************************************************************************/
|
646 |
603 |
/*!
|
647 |
|
@brief Writes an 8 bit value over I2C
|
648 |
|
*/
|
649 |
|
/**************************************************************************/
|
|
604 |
* @brief Writes an 8 bit value over I2C
|
|
605 |
*/
|
650 |
606 |
bool Adafruit_BNO055::write8(adafruit_bno055_reg_t reg, byte value) {
|
651 |
607 |
Wire.beginTransmission(_address);
|
652 |
608 |
#if ARDUINO >= 100
|
... | ... | |
662 |
618 |
return true;
|
663 |
619 |
}
|
664 |
620 |
|
665 |
|
/**************************************************************************/
|
666 |
621 |
/*!
|
667 |
|
@brief Reads an 8 bit value over I2C
|
668 |
|
*/
|
669 |
|
/**************************************************************************/
|
|
622 |
* @brief Reads an 8 bit value over I2C
|
|
623 |
*/
|
670 |
624 |
byte Adafruit_BNO055::read8(adafruit_bno055_reg_t reg) {
|
671 |
625 |
byte value = 0;
|
672 |
626 |
|
... | ... | |
687 |
641 |
return value;
|
688 |
642 |
}
|
689 |
643 |
|
690 |
|
/**************************************************************************/
|
691 |
644 |
/*!
|
692 |
|
@brief Reads the specified number of bytes over I2C
|
693 |
|
*/
|
694 |
|
/**************************************************************************/
|
|
645 |
* @brief Reads the specified number of bytes over I2C
|
|
646 |
*/
|
695 |
647 |
bool Adafruit_BNO055::readLen(adafruit_bno055_reg_t reg, byte *buffer,
|
696 |
648 |
uint8_t len) {
|
697 |
649 |
Wire.beginTransmission(_address);
|