Component: Gyroscope 3-Axis I2C (L3GD20) (Movement Orientation)

Author	Matrix TSL
Version	1.0
Category	Movement Orientation

Gyroscope 3-Axis I2C (L3GD20) component

Interface to the L3GD20 three axis digital gyroscope. Panel GUI can be used to simulate incoming data for testing.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_Gyroscope_L3GD20_I2C.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_Gyroscope_L3GD20_I2C.fcfx

Detailed description

No detailed description exists yet for this component

Examples

No additional examples

Macro reference

GetGyroReading

	GetGyroReading
Collects one of the gyroscope readings from the last sample.
- BYTE	Axis
0=X, 1=Y, 2=Z
- INT	Return

Initialise

	Initialise
Initialise the component. Returns 0 if successful
- BYTE	Return

ReadRegister

	ReadRegister
Read the data byte at the given address of the device
- BYTE	Reg
address of the register to be read
- BYTE	Return

SampleDevice

	SampleDevice
Reads the Axis data from the device.
- BYTE	Return

WriteRegister

	WriteRegister
Writes the data byte to the given address of the device. Returns 0 if successful
- BYTE	Reg
address of register to be written with data byte
- BYTE	data
data byte to be written to device register
- BYTE	Return

Property reference

	Properties
	Output Data Rate
Specifies the gryoscope sample data rate
	Full Scale Selection
Specifies the maximum angular speed which the sensor can measure in degrees per second
	Bandwidth Selection
Linked with data rate, See device datasheet table 21.
	Filter Enable
Enables automatic internal filtering on the gyro data
	X Axis
Enables or disables the selected axis allowing it to generate data or be switched off to save power.
	Y Axis
Enables or disables the selected axis allowing it to generate data or be switched off to save power.
	Z Axis
Enables or disables the selected axis allowing it to generate data or be switched off to save power.
	Connection
	Address Pin
The state of the SDO address pin. 0 = Connected to GND 1 = Connected to VCC
	Channel
Channel selection
	SDA
Pin used for SDA (data signal)
	SCL
Pin used for SCL (clock signal)
	Baud Select
Baud rate option selector
	Baud Rate
Baud rate to be used
	Stop Delay
On older microcontroller devices there is a potential for the I2C hardware channel to lock up if there is not a 10ms delay between an I2C stop event and the next I2C start event. Most modern microcontrollers will not have a problem so this property can be disabled to speed up the I2C communications.
	Simulation
	Label
	Simulate Comms
Controls where the simulation data comes from. Component GUI - Data comes from the sliders on the component panel GUI API - Comms data is sent and received via an API component