adding the adafruit DHT library
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87
Adafruit_Unified_Sensor/Adafruit_Sensor.cpp
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87
Adafruit_Unified_Sensor/Adafruit_Sensor.cpp
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#include "Adafruit_Sensor.h"
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/**************************************************************************/
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/*!
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@brief Prints sensor information to serial console
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*/
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/**************************************************************************/
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void Adafruit_Sensor::printSensorDetails(void) {
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sensor_t sensor;
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getSensor(&sensor);
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Serial.println(F("------------------------------------"));
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Serial.print(F("Sensor: "));
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Serial.println(sensor.name);
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Serial.print(F("Type: "));
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switch ((sensors_type_t)sensor.type) {
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case SENSOR_TYPE_ACCELEROMETER:
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Serial.print(F("Acceleration (m/s2)"));
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break;
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case SENSOR_TYPE_MAGNETIC_FIELD:
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Serial.print(F("Magnetic (uT)"));
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break;
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case SENSOR_TYPE_ORIENTATION:
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Serial.print(F("Orientation (degrees)"));
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break;
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case SENSOR_TYPE_GYROSCOPE:
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Serial.print(F("Gyroscopic (rad/s)"));
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break;
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case SENSOR_TYPE_LIGHT:
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Serial.print(F("Light (lux)"));
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break;
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case SENSOR_TYPE_PRESSURE:
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Serial.print(F("Pressure (hPa)"));
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break;
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case SENSOR_TYPE_PROXIMITY:
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Serial.print(F("Distance (cm)"));
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break;
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case SENSOR_TYPE_GRAVITY:
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Serial.print(F("Gravity (m/s2)"));
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break;
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case SENSOR_TYPE_LINEAR_ACCELERATION:
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Serial.print(F("Linear Acceleration (m/s2)"));
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break;
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case SENSOR_TYPE_ROTATION_VECTOR:
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Serial.print(F("Rotation vector"));
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break;
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case SENSOR_TYPE_RELATIVE_HUMIDITY:
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Serial.print(F("Relative Humidity (%)"));
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break;
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case SENSOR_TYPE_AMBIENT_TEMPERATURE:
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Serial.print(F("Ambient Temp (C)"));
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break;
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case SENSOR_TYPE_OBJECT_TEMPERATURE:
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Serial.print(F("Object Temp (C)"));
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break;
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case SENSOR_TYPE_VOLTAGE:
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Serial.print(F("Voltage (V)"));
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break;
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case SENSOR_TYPE_CURRENT:
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Serial.print(F("Current (mA)"));
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break;
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case SENSOR_TYPE_COLOR:
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Serial.print(F("Color (RGBA)"));
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break;
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case SENSOR_TYPE_TVOC:
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Serial.print(F("Total Volatile Organic Compounds (ppb)"));
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break;
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case SENSOR_TYPE_VOC_INDEX:
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Serial.print(F("Volatile Organic Compounds (Index)"));
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break;
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case SENSOR_TYPE_NOX_INDEX:
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Serial.print(F("Nitrogen Oxides (Index)"));
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break;
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}
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Serial.println();
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Serial.print(F("Driver Ver: "));
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Serial.println(sensor.version);
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Serial.print(F("Unique ID: "));
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Serial.println(sensor.sensor_id);
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Serial.print(F("Min Value: "));
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Serial.println(sensor.min_value);
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Serial.print(F("Max Value: "));
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Serial.println(sensor.max_value);
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Serial.print(F("Resolution: "));
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Serial.println(sensor.resolution);
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Serial.println(F("------------------------------------\n"));
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}
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196
Adafruit_Unified_Sensor/Adafruit_Sensor.h
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196
Adafruit_Unified_Sensor/Adafruit_Sensor.h
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/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software< /span>
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* Update by K. Townsend (Adafruit Industries) for lighter typedefs, and
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* extended sensor support to include color, voltage and current */
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#ifndef _ADAFRUIT_SENSOR_H
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#define _ADAFRUIT_SENSOR_H
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#ifndef ARDUINO
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#include <stdint.h>
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#elif ARDUINO >= 100
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#include "Arduino.h"
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#include "Print.h"
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#else
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#include "WProgram.h"
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#endif
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/* Constants */
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#define SENSORS_GRAVITY_EARTH (9.80665F) /**< Earth's gravity in m/s^2 */
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#define SENSORS_GRAVITY_MOON (1.6F) /**< The moon's gravity in m/s^2 */
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#define SENSORS_GRAVITY_SUN (275.0F) /**< The sun's gravity in m/s^2 */
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#define SENSORS_GRAVITY_STANDARD (SENSORS_GRAVITY_EARTH)
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#define SENSORS_MAGFIELD_EARTH_MAX \
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(60.0F) /**< Maximum magnetic field on Earth's surface */
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#define SENSORS_MAGFIELD_EARTH_MIN \
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(30.0F) /**< Minimum magnetic field on Earth's surface */
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#define SENSORS_PRESSURE_SEALEVELHPA \
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(1013.25F) /**< Average sea level pressure is 1013.25 hPa */
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#define SENSORS_DPS_TO_RADS \
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(0.017453293F) /**< Degrees/s to rad/s multiplier \
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*/
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#define SENSORS_RADS_TO_DPS \
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(57.29577793F) /**< Rad/s to degrees/s multiplier */
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#define SENSORS_GAUSS_TO_MICROTESLA \
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(100) /**< Gauss to micro-Tesla multiplier */
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/** Sensor types */
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typedef enum {
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SENSOR_TYPE_ACCELEROMETER = (1), /**< Gravity + linear acceleration */
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SENSOR_TYPE_MAGNETIC_FIELD = (2),
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SENSOR_TYPE_ORIENTATION = (3),
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SENSOR_TYPE_GYROSCOPE = (4),
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SENSOR_TYPE_LIGHT = (5),
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SENSOR_TYPE_PRESSURE = (6),
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SENSOR_TYPE_PROXIMITY = (8),
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SENSOR_TYPE_GRAVITY = (9),
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SENSOR_TYPE_LINEAR_ACCELERATION =
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(10), /**< Acceleration not including gravity */
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SENSOR_TYPE_ROTATION_VECTOR = (11),
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SENSOR_TYPE_RELATIVE_HUMIDITY = (12),
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SENSOR_TYPE_AMBIENT_TEMPERATURE = (13),
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SENSOR_TYPE_OBJECT_TEMPERATURE = (14),
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SENSOR_TYPE_VOLTAGE = (15),
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SENSOR_TYPE_CURRENT = (16),
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SENSOR_TYPE_COLOR = (17),
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SENSOR_TYPE_TVOC = (18),
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SENSOR_TYPE_VOC_INDEX = (19),
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SENSOR_TYPE_NOX_INDEX = (20)
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} sensors_type_t;
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/** struct sensors_vec_s is used to return a vector in a common format. */
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typedef struct {
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union {
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float v[3]; ///< 3D vector elements
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struct {
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float x; ///< X component of vector
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float y; ///< Y component of vector
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float z; ///< Z component of vector
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}; ///< Struct for holding XYZ component
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/* Orientation sensors */
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struct {
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float roll; /**< Rotation around the longitudinal axis (the plane body, 'X
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axis'). Roll is positive and increasing when moving
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downward. -90 degrees <= roll <= 90 degrees */
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float pitch; /**< Rotation around the lateral axis (the wing span, 'Y
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axis'). Pitch is positive and increasing when moving
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upwards. -180 degrees <= pitch <= 180 degrees) */
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float heading; /**< Angle between the longitudinal axis (the plane body)
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and magnetic north, measured clockwise when viewing from
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the top of the device. 0-359 degrees */
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}; ///< Struct for holding roll/pitch/heading
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}; ///< Union that can hold 3D vector array, XYZ components or
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///< roll/pitch/heading
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int8_t status; ///< Status byte
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uint8_t reserved[3]; ///< Reserved
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} sensors_vec_t;
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/** struct sensors_color_s is used to return color data in a common format. */
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typedef struct {
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union {
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float c[3]; ///< Raw 3-element data
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/* RGB color space */
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struct {
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float r; /**< Red component */
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float g; /**< Green component */
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float b; /**< Blue component */
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}; ///< RGB data in floating point notation
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}; ///< Union of various ways to describe RGB colorspace
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uint32_t rgba; /**< 24-bit RGBA value */
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} sensors_color_t;
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/* Sensor event (36 bytes) */
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/** struct sensor_event_s is used to provide a single sensor event in a common
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* format. */
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typedef struct {
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int32_t version; /**< must be sizeof(struct sensors_event_t) */
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int32_t sensor_id; /**< unique sensor identifier */
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int32_t type; /**< sensor type */
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int32_t reserved0; /**< reserved */
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int32_t timestamp; /**< time is in milliseconds */
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union {
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float data[4]; ///< Raw data
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sensors_vec_t acceleration; /**< acceleration values are in meter per second
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per second (m/s^2) */
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sensors_vec_t
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magnetic; /**< magnetic vector values are in micro-Tesla (uT) */
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sensors_vec_t orientation; /**< orientation values are in degrees */
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sensors_vec_t gyro; /**< gyroscope values are in rad/s */
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float temperature; /**< temperature is in degrees centigrade (Celsius) */
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float distance; /**< distance in centimeters */
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float light; /**< light in SI lux units */
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float pressure; /**< pressure in hectopascal (hPa) */
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float relative_humidity; /**< relative humidity in percent */
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float current; /**< current in milliamps (mA) */
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float voltage; /**< voltage in volts (V) */
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float tvoc; /**< Total Volatile Organic Compounds, in ppb */
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float voc_index; /**< VOC (Volatile Organic Compound) index where 100 is
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normal (unitless) */
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float nox_index; /**< NOx (Nitrogen Oxides) index where 100 is normal
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(unitless) */
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sensors_color_t color; /**< color in RGB component values */
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}; ///< Union for the wide ranges of data we can carry
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} sensors_event_t;
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/* Sensor details (40 bytes) */
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/** struct sensor_s is used to describe basic information about a specific
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* sensor. */
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typedef struct {
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char name[12]; /**< sensor name */
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int32_t version; /**< version of the hardware + driver */
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int32_t sensor_id; /**< unique sensor identifier */
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int32_t type; /**< this sensor's type (ex. SENSOR_TYPE_LIGHT) */
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float max_value; /**< maximum value of this sensor's value in SI units */
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float min_value; /**< minimum value of this sensor's value in SI units */
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float resolution; /**< smallest difference between two values reported by this
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sensor */
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int32_t min_delay; /**< min delay in microseconds between events. zero = not a
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constant rate */
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} sensor_t;
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/** @brief Common sensor interface to unify various sensors.
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* Intentionally modeled after sensors.h in the Android API:
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* https://github.com/android/platform_hardware_libhardware/blob/master/include/hardware/sensors.h
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*/
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class Adafruit_Sensor {
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public:
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// Constructor(s)
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Adafruit_Sensor() {}
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virtual ~Adafruit_Sensor() {}
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// These must be defined by the subclass
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/*! @brief Whether we should automatically change the range (if possible) for
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higher precision
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@param enabled True if we will try to autorange */
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virtual void enableAutoRange(bool enabled) {
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(void)enabled; /* suppress unused warning */
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||||
};
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/*! @brief Get the latest sensor event
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@returns True if able to fetch an event */
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virtual bool getEvent(sensors_event_t *) = 0;
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/*! @brief Get info about the sensor itself */
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virtual void getSensor(sensor_t *) = 0;
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void printSensorDetails(void);
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private:
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bool _autoRange;
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};
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#endif
|
202
Adafruit_Unified_Sensor/LICENSE.txt
Normal file
202
Adafruit_Unified_Sensor/LICENSE.txt
Normal file
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@ -0,0 +1,202 @@
|
|||
|
||||
Apache License
|
||||
Version 2.0, January 2004
|
||||
http://www.apache.org/licenses/
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|
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TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
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agreed to in writing, Licensor provides the Work (and each
|
||||
Contributor provides its Contributions) on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
implied, including, without limitation, any warranties or conditions
|
||||
of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
|
||||
PARTICULAR PURPOSE. You are solely responsible for determining the
|
||||
appropriateness of using or redistributing the Work and assume any
|
||||
risks associated with Your exercise of permissions under this License.
|
||||
|
||||
8. Limitation of Liability. In no event and under no legal theory,
|
||||
whether in tort (including negligence), contract, or otherwise,
|
||||
unless required by applicable law (such as deliberate and grossly
|
||||
negligent acts) or agreed to in writing, shall any Contributor be
|
||||
liable to You for damages, including any direct, indirect, special,
|
||||
incidental, or consequential damages of any character arising as a
|
||||
result of this License or out of the use or inability to use the
|
||||
Work (including but not limited to damages for loss of goodwill,
|
||||
work stoppage, computer failure or malfunction, or any and all
|
||||
other commercial damages or losses), even if such Contributor
|
||||
has been advised of the possibility of such damages.
|
||||
|
||||
9. Accepting Warranty or Additional Liability. While redistributing
|
||||
the Work or Derivative Works thereof, You may choose to offer,
|
||||
and charge a fee for, acceptance of support, warranty, indemnity,
|
||||
or other liability obligations and/or rights consistent with this
|
||||
License. However, in accepting such obligations, You may act only
|
||||
on Your own behalf and on Your sole responsibility, not on behalf
|
||||
of any other Contributor, and only if You agree to indemnify,
|
||||
defend, and hold each Contributor harmless for any liability
|
||||
incurred by, or claims asserted against, such Contributor by reason
|
||||
of your accepting any such warranty or additional liability.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
APPENDIX: How to apply the Apache License to your work.
|
||||
|
||||
To apply the Apache License to your work, attach the following
|
||||
boilerplate notice, with the fields enclosed by brackets "[]"
|
||||
replaced with your own identifying information. (Don't include
|
||||
the brackets!) The text should be enclosed in the appropriate
|
||||
comment syntax for the file format. We also recommend that a
|
||||
file or class name and description of purpose be included on the
|
||||
same "printed page" as the copyright notice for easier
|
||||
identification within third-party archives.
|
||||
|
||||
Copyright [yyyy] [name of copyright owner]
|
||||
|
||||
Licensed under the Apache License, Version 2.0 (the "License");
|
||||
you may not use this file except in compliance with the License.
|
||||
You may obtain a copy of the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
See the License for the specific language governing permissions and
|
||||
limitations under the License.
|
239
Adafruit_Unified_Sensor/README.md
Normal file
239
Adafruit_Unified_Sensor/README.md
Normal file
|
@ -0,0 +1,239 @@
|
|||
# Adafruit Unified Sensor Driver #
|
||||
|
||||
Many small embedded systems exist to collect data from sensors, analyse the data, and either take an appropriate action or send that sensor data to another system for processing.
|
||||
|
||||
One of the many challenges of embedded systems design is the fact that parts you used today may be out of production tomorrow, or system requirements may change and you may need to choose a different sensor down the road.
|
||||
|
||||
Creating new drivers is a relatively easy task, but integrating them into existing systems is both error prone and time consuming since sensors rarely use the exact same units of measurement.
|
||||
|
||||
By reducing all data to a single **sensors\_event\_t** 'type' and settling on specific, **standardised SI units** for each sensor family the same sensor types return values that are comparable with any other similar sensor. This enables you to switch sensor models with very little impact on the rest of the system, which can help mitigate some of the risks and problems of sensor availability and code reuse.
|
||||
|
||||
The unified sensor abstraction layer is also useful for data-logging and data-transmission since you only have one well-known type to log or transmit over the air or wire.
|
||||
|
||||
## Unified Sensor Drivers ##
|
||||
|
||||
The following drivers are based on the Adafruit Unified Sensor Driver:
|
||||
|
||||
**Accelerometers**
|
||||
- [Adafruit\_ADXL345](https://github.com/adafruit/Adafruit_ADXL345)
|
||||
- [Adafruit\_LSM303DLHC](https://github.com/adafruit/Adafruit_LSM303DLHC)
|
||||
- [Adafruit\_MMA8451\_Library](https://github.com/adafruit/Adafruit_MMA8451_Library)
|
||||
|
||||
**Gyroscope**
|
||||
- [Adafruit\_L3GD20\_U](https://github.com/adafruit/Adafruit_L3GD20_U)
|
||||
|
||||
**Light**
|
||||
- [Adafruit\_TSL2561](https://github.com/adafruit/Adafruit_TSL2561)
|
||||
- [Adafruit\_TSL2591\_Library](https://github.com/adafruit/Adafruit_TSL2591_Library)
|
||||
|
||||
**Magnetometers**
|
||||
- [Adafruit\_LSM303DLHC](https://github.com/adafruit/Adafruit_LSM303DLHC)
|
||||
- [Adafruit\_HMC5883\_Unified](https://github.com/adafruit/Adafruit_HMC5883_Unified)
|
||||
|
||||
**Barometric Pressure**
|
||||
- [Adafruit\_BMP085\_Unified](https://github.com/adafruit/Adafruit_BMP085_Unified)
|
||||
- [Adafruit\_BMP183\_Unified\_Library](https://github.com/adafruit/Adafruit_BMP183_Unified_Library)
|
||||
|
||||
**Humidity & Temperature**
|
||||
- [DHT-sensor-library](https://github.com/adafruit/DHT-sensor-library)
|
||||
|
||||
**Humidity, Temperature, & Barometric Pressure**
|
||||
- [Adafruit_BME280_Library](https://github.com/adafruit/Adafruit_BME280_Library/)
|
||||
|
||||
**Orientation**
|
||||
- [Adafruit_BNO055](https://github.com/adafruit/Adafruit_BNO055)
|
||||
|
||||
**All in one device**
|
||||
- [Adafruit_LSM9DS0](https://github.com/adafruit/Adafruit_LSM9DS0_Library) (accelerometer, gyroscope, magnetometer)
|
||||
- [Adafruit_LSM9DS1](https://github.com/adafruit/Adafruit_LSM9DS1/) (accelerometer, gyroscope, magnetometer)
|
||||
|
||||
|
||||
## How Does it Work? ##
|
||||
|
||||
Any driver that supports the Adafruit unified sensor abstraction layer will implement the Adafruit\_Sensor base class. There are two main typedefs and one enum defined in Adafruit_Sensor.h that are used to 'abstract' away the sensor details and values:
|
||||
|
||||
## Sensor Types (`sensors_type_t`)
|
||||
|
||||
These pre-defined sensor types are used to properly handle the two related typedefs below, and allows us determine what types of units the sensor uses, etc.
|
||||
|
||||
```c++
|
||||
/** Sensor types */
|
||||
typedef enum
|
||||
{
|
||||
SENSOR_TYPE_ACCELEROMETER = (1),
|
||||
SENSOR_TYPE_MAGNETIC_FIELD = (2),
|
||||
SENSOR_TYPE_ORIENTATION = (3),
|
||||
SENSOR_TYPE_GYROSCOPE = (4),
|
||||
SENSOR_TYPE_LIGHT = (5),
|
||||
SENSOR_TYPE_PRESSURE = (6),
|
||||
SENSOR_TYPE_PROXIMITY = (8),
|
||||
SENSOR_TYPE_GRAVITY = (9),
|
||||
SENSOR_TYPE_LINEAR_ACCELERATION = (10),
|
||||
SENSOR_TYPE_ROTATION_VECTOR = (11),
|
||||
SENSOR_TYPE_RELATIVE_HUMIDITY = (12),
|
||||
SENSOR_TYPE_AMBIENT_TEMPERATURE = (13),
|
||||
SENSOR_TYPE_VOLTAGE = (15),
|
||||
SENSOR_TYPE_CURRENT = (16),
|
||||
SENSOR_TYPE_COLOR = (17),
|
||||
SENSOR_TYPE_TVOC = (18),
|
||||
SENSOR_TYPE_VOC_INDEX = (19),
|
||||
SENSOR_TYPE_NOX_INDEX = (20)
|
||||
} sensors_type_t;
|
||||
```
|
||||
|
||||
## Sensor Details (`sensor_t`)
|
||||
|
||||
This typedef describes the specific capabilities of this sensor, and allows us to know what sensor we are using beneath the abstraction layer.
|
||||
|
||||
```c++
|
||||
/* Sensor details (40 bytes) */
|
||||
/** struct sensor_s is used to describe basic information about a specific sensor. */
|
||||
typedef struct
|
||||
{
|
||||
char name[12];
|
||||
int32_t version;
|
||||
int32_t sensor_id;
|
||||
int32_t type;
|
||||
float max_value;
|
||||
float min_value;
|
||||
float resolution;
|
||||
int32_t min_delay;
|
||||
} sensor_t;
|
||||
```
|
||||
|
||||
The individual fields are intended to be used as follows:
|
||||
|
||||
- **name**: The sensor name or ID, up to a maximum of twelve characters (ex. "MPL115A2")
|
||||
- **version**: The version of the sensor HW and the driver to allow us to differentiate versions of the board or driver
|
||||
- **sensor\_id**: A unique sensor identifier that is used to differentiate this specific sensor instance from any others that are present on the system or in the sensor network
|
||||
- **type**: The sensor type, based on **sensors\_type\_t** in sensors.h
|
||||
- **max\_value**: The maximum value that this sensor can return (in the appropriate SI unit)
|
||||
- **min\_value**: The minimum value that this sensor can return (in the appropriate SI unit)
|
||||
- **resolution**: The smallest difference between two values that this sensor can report (in the appropriate SI unit)
|
||||
- **min\_delay**: The minimum delay in microseconds between two sensor events, or '0' if there is no constant sensor rate
|
||||
|
||||
## Sensor Data/Events (`sensors_event_t`)
|
||||
|
||||
This typedef is used to return sensor data from any sensor supported by the abstraction layer, using standard SI units and scales.
|
||||
|
||||
```c++
|
||||
/* Sensor event (36 bytes) */
|
||||
/** struct sensor_event_s is used to provide a single sensor event in a common format. */
|
||||
typedef struct
|
||||
{
|
||||
int32_t version;
|
||||
int32_t sensor_id;
|
||||
int32_t type;
|
||||
int32_t reserved0;
|
||||
int32_t timestamp;
|
||||
union
|
||||
{
|
||||
float data[4];
|
||||
sensors_vec_t acceleration;
|
||||
sensors_vec_t magnetic;
|
||||
sensors_vec_t orientation;
|
||||
sensors_vec_t gyro;
|
||||
float temperature;
|
||||
float distance;
|
||||
float light;
|
||||
float pressure;
|
||||
float relative_humidity;
|
||||
float current;
|
||||
float voltage;
|
||||
float tvoc;
|
||||
float voc_index;
|
||||
float nox_index;
|
||||
sensors_color_t color;
|
||||
};
|
||||
} sensors_event_t;
|
||||
```
|
||||
It includes the following fields:
|
||||
|
||||
- **version**: Contain 'sizeof(sensors\_event\_t)' to identify which version of the API we're using in case this changes in the future
|
||||
- **sensor\_id**: A unique sensor identifier that is used to differentiate this specific sensor instance from any others that are present on the system or in the sensor network (must match the sensor\_id value in the corresponding sensor\_t enum above!)
|
||||
- **type**: the sensor type, based on **sensors\_type\_t** in sensors.h
|
||||
- **timestamp**: time in milliseconds when the sensor value was read
|
||||
- **data[4]**: An array of four 32-bit values that allows us to encapsulate any type of sensor data via a simple union (further described below)
|
||||
|
||||
## Required Functions
|
||||
|
||||
In addition to the two standard types and the sensor type enum, all drivers based on Adafruit_Sensor must also implement the following two functions:
|
||||
|
||||
```c++
|
||||
bool getEvent(sensors_event_t*);
|
||||
```
|
||||
Calling this function will populate the supplied sensors\_event\_t reference with the latest available sensor data. You should call this function as often as you want to update your data.
|
||||
|
||||
```c++
|
||||
void getSensor(sensor_t*);
|
||||
```
|
||||
Calling this function will provide some basic information about the sensor (the sensor name, driver version, min and max values, etc.
|
||||
|
||||
## Standardised SI values for `sensors_event_t`
|
||||
|
||||
A key part of the abstraction layer is the standardisation of values on SI units of a particular scale, which is accomplished via the data[4] union in sensors\_event\_t above. This 16 byte union includes fields for each main sensor type, and uses the following SI units and scales:
|
||||
|
||||
- **acceleration**: values are in **meter per second per second** (m/s^2)
|
||||
- **magnetic**: values are in **micro-Tesla** (uT)
|
||||
- **orientation**: values are in **degrees**
|
||||
- **gyro**: values are in **rad/s**
|
||||
- **temperature**: values in **degrees centigrade** (Celsius)
|
||||
- **distance**: values are in **centimeters**
|
||||
- **light**: values are in **SI lux** units
|
||||
- **pressure**: values are in **hectopascal** (hPa)
|
||||
- **relative\_humidity**: values are in **percent**
|
||||
- **current**: values are in **milliamps** (mA)
|
||||
- **voltage**: values are in **volts** (V)
|
||||
- **color**: values are in 0..1.0 RGB channel luminosity and 32-bit RGBA format
|
||||
- **tvoc**: values are in **parts per billion** (ppb)
|
||||
- **voc_index**: values are an **index** from 1-500 with 100 being normal
|
||||
- **nox_index**: values are an **index** from 1-500 with 100 being normal
|
||||
|
||||
|
||||
## The Unified Driver Abstraction Layer in Practice ##
|
||||
|
||||
Using the unified sensor abstraction layer is relatively easy once a compliant driver has been created.
|
||||
|
||||
Every compliant sensor can now be read using a single, well-known 'type' (sensors\_event\_t), and there is a standardised way of interrogating a sensor about its specific capabilities (via sensor\_t).
|
||||
|
||||
An example of reading the [TSL2561](https://github.com/adafruit/Adafruit_TSL2561) light sensor can be seen below:
|
||||
|
||||
```c++
|
||||
Adafruit_TSL2561 tsl = Adafruit_TSL2561(TSL2561_ADDR_FLOAT, 12345);
|
||||
...
|
||||
/* Get a new sensor event */
|
||||
sensors_event_t event;
|
||||
tsl.getEvent(&event);
|
||||
|
||||
/* Display the results (light is measured in lux) */
|
||||
if (event.light)
|
||||
{
|
||||
Serial.print(event.light); Serial.println(" lux");
|
||||
}
|
||||
else
|
||||
{
|
||||
/* If event.light = 0 lux the sensor is probably saturated
|
||||
and no reliable data could be generated! */
|
||||
Serial.println("Sensor overload");
|
||||
}
|
||||
```
|
||||
|
||||
Similarly, we can get the basic technical capabilities of this sensor with the following code:
|
||||
|
||||
```c++
|
||||
sensor_t sensor;
|
||||
|
||||
sensor_t sensor;
|
||||
tsl.getSensor(&sensor);
|
||||
|
||||
/* Display the sensor details */
|
||||
Serial.println("------------------------------------");
|
||||
Serial.print ("Sensor: "); Serial.println(sensor.name);
|
||||
Serial.print ("Driver Ver: "); Serial.println(sensor.version);
|
||||
Serial.print ("Unique ID: "); Serial.println(sensor.sensor_id);
|
||||
Serial.print ("Max Value: "); Serial.print(sensor.max_value); Serial.println(" lux");
|
||||
Serial.print ("Min Value: "); Serial.print(sensor.min_value); Serial.println(" lux");
|
||||
Serial.print ("Resolution: "); Serial.print(sensor.resolution); Serial.println(" lux");
|
||||
Serial.println("------------------------------------");
|
||||
Serial.println("");
|
||||
```
|
153
Adafruit_Unified_Sensor/examples/sensortest/sensortest.ino
Normal file
153
Adafruit_Unified_Sensor/examples/sensortest/sensortest.ino
Normal file
|
@ -0,0 +1,153 @@
|
|||
#include <Wire.h>
|
||||
#include <Adafruit_Sensor.h>
|
||||
#include <Adafruit_ADXL343.h>
|
||||
|
||||
/* Assign a unique ID to this sensor at the same time */
|
||||
/* Uncomment following line for default Wire bus */
|
||||
Adafruit_ADXL343 accel = Adafruit_ADXL343(12345);
|
||||
|
||||
/* NeoTrellis M4, etc. */
|
||||
/* Uncomment following line for Wire1 bus */
|
||||
//Adafruit_ADXL343 accel = Adafruit_ADXL343(12345, &Wire1);
|
||||
|
||||
void displaySensorDetails(void)
|
||||
{
|
||||
sensor_t sensor;
|
||||
accel.getSensor(&sensor);
|
||||
Serial.println("------------------------------------");
|
||||
Serial.print ("Sensor: "); Serial.println(sensor.name);
|
||||
Serial.print ("Driver Ver: "); Serial.println(sensor.version);
|
||||
Serial.print ("Unique ID: "); Serial.println(sensor.sensor_id);
|
||||
Serial.print ("Max Value: "); Serial.print(sensor.max_value); Serial.println(" m/s^2");
|
||||
Serial.print ("Min Value: "); Serial.print(sensor.min_value); Serial.println(" m/s^2");
|
||||
Serial.print ("Resolution: "); Serial.print(sensor.resolution); Serial.println(" m/s^2");
|
||||
Serial.println("------------------------------------");
|
||||
Serial.println("");
|
||||
delay(500);
|
||||
}
|
||||
|
||||
void displayDataRate(void)
|
||||
{
|
||||
Serial.print ("Data Rate: ");
|
||||
|
||||
switch(accel.getDataRate())
|
||||
{
|
||||
case ADXL343_DATARATE_3200_HZ:
|
||||
Serial.print ("3200 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_1600_HZ:
|
||||
Serial.print ("1600 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_800_HZ:
|
||||
Serial.print ("800 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_400_HZ:
|
||||
Serial.print ("400 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_200_HZ:
|
||||
Serial.print ("200 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_100_HZ:
|
||||
Serial.print ("100 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_50_HZ:
|
||||
Serial.print ("50 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_25_HZ:
|
||||
Serial.print ("25 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_12_5_HZ:
|
||||
Serial.print ("12.5 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_6_25HZ:
|
||||
Serial.print ("6.25 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_3_13_HZ:
|
||||
Serial.print ("3.13 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_1_56_HZ:
|
||||
Serial.print ("1.56 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_0_78_HZ:
|
||||
Serial.print ("0.78 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_0_39_HZ:
|
||||
Serial.print ("0.39 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_0_20_HZ:
|
||||
Serial.print ("0.20 ");
|
||||
break;
|
||||
case ADXL343_DATARATE_0_10_HZ:
|
||||
Serial.print ("0.10 ");
|
||||
break;
|
||||
default:
|
||||
Serial.print ("???? ");
|
||||
break;
|
||||
}
|
||||
Serial.println(" Hz");
|
||||
}
|
||||
|
||||
void displayRange(void)
|
||||
{
|
||||
Serial.print ("Range: +/- ");
|
||||
|
||||
switch(accel.getRange())
|
||||
{
|
||||
case ADXL343_RANGE_16_G:
|
||||
Serial.print ("16 ");
|
||||
break;
|
||||
case ADXL343_RANGE_8_G:
|
||||
Serial.print ("8 ");
|
||||
break;
|
||||
case ADXL343_RANGE_4_G:
|
||||
Serial.print ("4 ");
|
||||
break;
|
||||
case ADXL343_RANGE_2_G:
|
||||
Serial.print ("2 ");
|
||||
break;
|
||||
default:
|
||||
Serial.print ("?? ");
|
||||
break;
|
||||
}
|
||||
Serial.println(" g");
|
||||
}
|
||||
|
||||
void setup(void)
|
||||
{
|
||||
Serial.begin(9600);
|
||||
while (!Serial);
|
||||
Serial.println("Accelerometer Test"); Serial.println("");
|
||||
|
||||
/* Initialise the sensor */
|
||||
if(!accel.begin())
|
||||
{
|
||||
/* There was a problem detecting the ADXL343 ... check your connections */
|
||||
Serial.println("Ooops, no ADXL343 detected ... Check your wiring!");
|
||||
while(1);
|
||||
}
|
||||
|
||||
/* Set the range to whatever is appropriate for your project */
|
||||
accel.setRange(ADXL343_RANGE_16_G);
|
||||
// accel.setRange(ADXL343_RANGE_8_G);
|
||||
// accel.setRange(ADXL343_RANGE_4_G);
|
||||
// accel.setRange(ADXL343_RANGE_2_G);
|
||||
|
||||
/* Display some basic information on this sensor */
|
||||
displaySensorDetails();
|
||||
displayDataRate();
|
||||
displayRange();
|
||||
Serial.println("");
|
||||
}
|
||||
|
||||
void loop(void)
|
||||
{
|
||||
/* Get a new sensor event */
|
||||
sensors_event_t event;
|
||||
accel.getEvent(&event);
|
||||
|
||||
/* Display the results (acceleration is measured in m/s^2) */
|
||||
Serial.print("X: "); Serial.print(event.acceleration.x); Serial.print(" ");
|
||||
Serial.print("Y: "); Serial.print(event.acceleration.y); Serial.print(" ");
|
||||
Serial.print("Z: "); Serial.print(event.acceleration.z); Serial.print(" ");Serial.println("m/s^2 ");
|
||||
delay(500);
|
||||
}
|
11
Adafruit_Unified_Sensor/library.properties
Normal file
11
Adafruit_Unified_Sensor/library.properties
Normal file
|
@ -0,0 +1,11 @@
|
|||
name=Adafruit Unified Sensor
|
||||
version=1.1.7
|
||||
author=Adafruit <info@adafruit.com>
|
||||
maintainer=Adafruit <info@adafruit.com>
|
||||
sentence=Required for all Adafruit Unified Sensor based libraries.
|
||||
paragraph=A unified sensor abstraction layer used by many Adafruit sensor libraries.
|
||||
category=Sensors
|
||||
url=https://github.com/adafruit/Adafruit_Sensor
|
||||
architectures=*
|
||||
includes=Adafruit_Sensor.h
|
||||
|
Loading…
Add table
Add a link
Reference in a new issue