Crowtail-IMU-10DOF

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Description

The crowtail-IMU-10DOF is a 10-axis sensor that can be used for motion pose monitoring, and can also read azimuth, altitude and temperature. Very suitable for use in DIY aircraft or balance robot for human-computer interaction.

The onboard MPU9255 incorporates a 3-axis accelerometer, a 3-axis gyroscope and a 3-axis magnetometer. The built-in digital motion processing engine reduces the processor load. Compared to the MPU6050, with lower power consumption, more suitable for wear equipment. Onboard BMP180 (barometric altimeter), built-in temperature sensor, can be temperature compensation.

10-axis data can be acquired only through the IIC interface.

Model:Crowtail-IMU-10DOF

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Specification

  • Power supply range: 3.3 to 5.5V.
  • Accelerometer resolution: 16 bits.
  • Accelerometer measurement range: ± 2, ± 4, ± 8, ± 16g.
  • Accelerometer operating current: 450mA.
  • Gyro resolution: 16 bits.
  • Gyro measurement range: ± 250, ± 500, ± 1000, ± 2000 ° / s.
  • Gyroscope operating current: 3.2mA.
  • Magnetometer resolution: 14 or 16 bits.
  • Magnetometer measurement range: ± 4800uT.
  • Magnetometer operating current: 280uA.
  • Barometric altimeter resolution: 16 to 19 bits.
  • Pressure altimeter measurement Range: 300hPa (+9000 m) to 11hPa (-500m).
  • Pressure altimeter Accuracy: 0.02hPa (0.17m).

Usage

This demo is going to show you how to read temperature and humidity information from this Crowtail - HTU21D Humidity&Temperature Sensor.

1.Hardware Connection
The HTU21D Humidity&Temperature Sensor is connecting to digital port D5 of Crowtail - Base Shield.

Connection of HTU21D Humidity&Temperature Sensor.jpg

2.Download the HTU21D Humidity&Temperature Sensor Library. Unzip and put it in the libraries file of Arduino IDE by the path: ..File/arduino IDE/Arduino/library/SparkFunHTU21D. You can also copy the following program to Arduino IDE and upload to your Arduino/Crowduino.

3.Open “SparkFunHTU21D” example:


#include <Wire.h>
#include "SparkFunHTU21D.h"

//Create an instance of the object
HTU21D myHumidity;

void setup()
{
  Serial.begin(9600);
  Serial.println("HTU21D Example!");

  myHumidity.begin();
}

void loop()
{
  float humd = myHumidity.readHumidity();
  float temp = myHumidity.readTemperature();

  Serial.print("Time:");
  Serial.print(millis());
  Serial.print(" Temperature:");
  Serial.print(temp, 1);
  Serial.print("C");
  Serial.print(" Humidity:");
  Serial.print(humd, 1);
  Serial.print("%");

  Serial.println();
  delay(1000);
}

4.Upload it into your Arduino board and open the serial monitor to observe the temperature and relative humidity information of the environment.

Result of HTU21D Humidity&Temperature Sensor.png

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