Mikroelektronika d.o.o.

SKU: MIKROE-3934

6DOF IMU 10 Click Board

£22.00 GBP

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The 6DOF IMU 10 Click Board™ is a 6 Degrees-of-Freedom inertial sensor module, that features a KMX62 sensor which consists of a tri-axial magnetometer (range ±2g / ±4g / ±8g / ±16g) plus a triaxial accelerometer (±1200µT). The accelerometer and magnetometer data can be accumulated in an internal 384-byte FIFO buffer and transmitted to the Application Processor. This Click Board™ can be used for applications that require movement and orientation features, navigation, such as screen orientation, machine/vibration analysis, game playing.

The 6DOF IMU 10 Click is supported by a mikroSDK compliant library, which includes functions that simplify software development. This Click Board™ comes as a fully tested product, ready to be used on a system equipped with the mikroBUS™ socket.

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Product Description

How Does The 6DOF IMU 10 Click Board™ Work?

The 6DOF IMU 10 Click Board™ features the KMX62-1031 a 6 Degrees-of-Freedom inertial sensor from Kionix. It is based on the principle of a differential capacitance arising from acceleration-induced motion of the sense element, which utilizes common mode cancellation to decrease errors from process variation, temperature, and environmental stress. Capacitance changes are amplified and converted into digital signals which are processed by a dedicated digital signal processing unit.

Click Boards Sensors Motion 6DOF IMU 10 click

The digital signal processor applies filtering, bias, and sensitivity adjustments, as well as temperature compensation. Magnetic sensing is based on the principle of magnetic impedance. The magnetic sensor detects very small magnetic fields by passing an electric pulse through a special electron spin aligned amorphous wire. Due to the high Curie temperature of the wire, the sensor’s thermal performance shows excellent stability. Noise performance is excellent with bias stability over temperature. Bias errors resulting from assembly can be trimmed digitally by the user. These sensors can accept supply voltages between 1.7V and 3.6V, and digital communication voltages between 1.2V and 3.6V.

The Kionix KMX62 digital sensor can communicate on the I2C digital serial interface bus. This flexibility allows for easy system integration by eliminating analog-to-digital converter requirements and by providing direct communication with system processors. The I2C interface is compliant with high-speed mode, fast mode, and standard mode I2C protocols.

As previously mentioned, the KMX62 can communicate on an I2C bus. I2C is primarily used for synchronous serial communication between a Master device and one or more Slave devices. The system Master provides the serial clock signal and addresses Slave devices on the bus. The KMX62 always operates as a Slave device during standard Master-Slave I2C operation. I2C is a two-wire serial interface that contains a Serial Clock (SCL) line and a Serial Data (SDA) line. SCL is a serial clock that is provided by the Master, but can be held LOW by any Slave device, putting the Master into a wait condition. SDA is a bi-directional line used to transmit and receive data to and from the interface. Data is transmitted MSB (Most Significant Bit) first in 8-bit per byte format, and the number of bytes transmitted per transfer is unlimited. The I2C bus is considered free when both lines are HIGH.

SPECIFICATIONS

Type	Motion
Applications	A accelerometer can be used to enable a variety of simultaneous features for Machine health, screen orientation, navigation.
On-board modules	KMX62-1031, a 6 Degrees-of-Freedom inertial sensor from Kionix
Key Features	16-bit digital output, Internal 384-byte FIFO buffer
Interface	GPIO,I2C
Compatibility	mikroBUS
Click board size	S (28.6 x 25.4 mm)
Input Voltage	3.3V

PINOUT DIAGRAM

This table shows how the pinout of the 6DOF IMU 10 Click Board™ corresponds to the pinout on the mikroBUS™ socket (the latter shown in the two middle columns).

Notes	Pin					Pin	Notes
	NC	1	AN	PWM	16	GP1	General Purpose #1
General Purpose #2	GP2	2	RST	INT	15	NC
	NC	3	CS	RX	14	NC
	NC	4	SCK	TX	13	NC
	NC	5	MISO	SCL	12	SCL	I2C Clock
	NC	6	MOSI	SDA	11	SDA	I2C Data
Power Supply	3.3V	7	3.3V	5V	10	NC
Ground	GND	8	GND	GND	9	GND	Ground

ONBOARD SETTINGS AND INDICATORS

Label	Name	Default	Description
LD1	PWR	-	Power LED Indicator
JP1	ADDR SEL	Left	Select I2C address bit: Left postion 0, Right position 1

Software Support

We provide a library for the 6DOF IMU 10 Click Board™ on our LibStock page, as well as a demo application (example), developed using MikroElektronika compilers. The demo can run on all the main MikroElektronika development boards.

Library Description

The library performs a magnetometer, accelerometer and temperature measurements and control of the 6DOF IMU 10 Click Board™. User also can select a desired range, scale and other config for the desired measurement. For more details check documentation.

Key Functions

void c6dofimu10_default_cfg ( void ) - Default module configuration function
void c6dofimu10_get_accel_axis ( c6dofimu10_axis_t *axis ) - Accelerometer axis data
void c6dofimu10_get_mag_axis ( c6dofimu10_axis_t *axis ) - Magnetometer axis data

Example Description

The application is composed of three sections :

System Initialization - Initializes I2C driver and GP1 - GP2 pins used as interrupt pins. And initializes the LOG module.
Application Initialization - Runs a communication test that reads device id (registry Who_I_AM). It then starts the default module config that sets the module to its initial state of operation.
Application Task - Reads the accelerometer and magnetometer axis data. And reads temperature values. All data logs on the USBUART.

void application_task ( )
{
 c6dofimu10_axis_t accel_axis;
 c6dofimu10_axis_t mag_axis;
 float temperature;
 c6dofimu10_get_accel_axis ( &accel_axis );
 c6dofimu10_get_mag_axis ( &mag_axis );
 temperature = c6dofimu10_get_temperature ( C6DOFIMU10_TEMP_FORMAT_CELSIUS );
 mikrobus_logWrite( "-- Accelerometer axis --", _LOG_LINE );
 app_display_axis_data( &accel_axis );
 Delay_ms( 2000 );
 mikrobus_logWrite( "-- Magnetometer axis --", _LOG_LINE );
 app_display_axis_data( &mag_axis );
 Delay_ms( 2000 );
 mikrobus_logWrite( "-- Temperature data --", _LOG_LINE );
 app_display_temp_data( temperature );
 Delay_ms( 2000 );
}

Additional Functions :

app_display_axis_data ( ) - Display (accel and mag) axis data
app_display_temp_data ( ) - Display temperature data

The full application code, and ready to use projects can be found on our LibStock page.

Other mikroE Libraries used in the example:

I2C Library
UART Library
Conversions Library

Additional Notes and Information

Depending on the development board you are using, you may need a USB UART click, USB UART 2 click or RS232 click to connect to your PC, for development systems with no UART to USB interface available on the board. The terminal available in all MikroElektronika compilers, or any other terminal application of your choice, can be used to read the message.

MIKROSDK

The 6DOF IMU 10 Click Board™ is supported with mikroSDK - MikroElektronika Software Development Kit. To ensure proper operation of mikroSDK compliant Click board™ demo applications, mikroSDK should be downloaded from the LibStock and installed for the compiler you are using.

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6DOF IMU 10 Click Board