Component: Grove I2C Motor Driver (Mechatronics)

Author	Matrix TSL
Version	1.0
Category	Mechatronics

Grove I2C Motor Driver component

A grove board based around the L298P motor driver IC allowing control of two DC motors or a single stepper motor.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_Grove_I2C_Motor_Driver.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_Grove_I2C_Motor_Driver.fcfx

Detailed description

Mechanical encoders can be a bit electrically noisy when switching and so to have reliable operation it is recommended to have a simple filter as shown here.

Examples

Polling

Example program showing how to use a quadrature encoder component using a polling method. Quad_Encoder_Test

Timer Interrupt Based Polling

Example program showing how to use a quadrature encoder component using a polling method via a timer interrupt. Quad_Encoder_Timer

Interrupt On Change

Example program showing how to use a quadrature encoder component using a interrupt on pin state change interrupt (IOC). Quad_Encoder_IOC

Macro reference

Frequency

	Frequency
Set the frequency of PWM (cycle length = 510, system clock = 16MHz)
- BYTE	FrequencySelection
1=31.372 KHz, 2=3.921 KHz, 3=490 Hz, 4=122 Hz, 5=30 Hz
- VOID	Return

Initialise

	Initialise
Sets up the I2C ready for communications
- VOID	Return

Speed

	Speed
Sets the speed of a motor.
- BYTE	Motor
1=Motor1 / 2=Motor2
- INT	Speed
Range: -255 to 255 where -255 = Full Backwards, 0=Stop, 255=Full Forwards
- VOID	Return

Stop

	Stop
Stop one motor
- BYTE	Motor
1 = Motor1 / 2 = Motor2
- VOID	Return

Property reference

	Properties
	Communications
	I2C Address
	Channel
Channel selection
	SDA
Pin used for SDA (data signal)
	SCL
Pin used for SCL (clock signal)
	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.
	Baud Select
Baud rate option selector
	Baud Rate
Baud rate to be used
	Default Frequency
	Simulation
	Scope Traces
Selects if the component pin connections are automatically generated on the data recorder window or not. Yes: Automatically add the component pins to a group on the data recorder which will reflect the sim data during simultion. No: Do not show the pin signals on the data recorder window.
	Console Data
Selects if the console data is automatically generated or not
	API
Specifies the API component on the panel to interact with to provide comms simulation.