Meadow.Foundation.Motors.Tb67h420ftg

Tb67h420ftg
Status
Source code	GitHub
Datasheet(s)	GitHub
NuGet package

Code Example

Tb67h420ftg motorDriver;

PushButton button1;
PushButton button2;

public override Task Initialize()
{
    Resolver.Log.Info("Initialize...");

    button1 = new PushButton(Device.Pins.D12, ResistorMode.InternalPullDown);
    button2 = new PushButton(Device.Pins.D13, ResistorMode.InternalPullDown);

    button1.PressStarted += Button1_PressStarted;
    button1.PressEnded += Button1_PressEnded;
    button2.PressStarted += Button2_PressStarted;
    button2.PressEnded += Button2_PressEnded;

    motorDriver = new Tb67h420ftg(
        inA1: Device.Pins.D04, inA2: Device.Pins.D03, pwmA: Device.Pins.D01,
        inB1: Device.Pins.D05, inB2: Device.Pins.D06, pwmB: Device.Pins.D00,
        fault1: Device.Pins.D02, fault2: Device.Pins.D07,
        hbMode: Device.Pins.D09, tblkab: Device.Pins.D10);

    // 6V motors with a 12V input. this clamps them to 6V
    motorDriver.Motor1.MotorCalibrationMultiplier = 0.5f;
    motorDriver.Motor2.MotorCalibrationMultiplier = 0.5f;

    Resolver.Log.Info("Initialization complete.");

    return base.Initialize();
}

private void Button1_PressStarted(object sender, EventArgs e)
{
    Resolver.Log.Info("Motor 1 start.");
    motorDriver.Motor1.Power = 1f;
}
private void Button1_PressEnded(object sender, EventArgs e)
{
    Resolver.Log.Info("Motor 1 stop.");
    motorDriver.Motor1.Power = 0f;
}

private void Button2_PressStarted(object sender, EventArgs e)
{
    Resolver.Log.Info("Motor 2 start.");
    motorDriver.Motor2.Power = 0.5f;
}
private void Button2_PressEnded(object sender, EventArgs e)
{
    Resolver.Log.Info("Motor 2 stop.");
    motorDriver.Motor2.Power = 0f;
}

Sample project(s) available on GitHub

Wiring Example

To wire a Tb67h420ftg to your Meadow board, connect the following:

Tb67h420ftg	Meadow Pin
GND	GND
VCC	5V
INA1	D04
INA2	D03
PWMA	D01
INB1	D05
INB2	D06
PWMB	D00
LOW1	D02
LOW2	D07
HBMODE	D09
TBLKAB	D10

It should look like the following diagram:

Class Tb67h420ftg

The TB67H420FTG is a brushed DC motor driver that has a dual H-Bridge motor driver built in, along with over current protection (and notification).

With the ability to drive up to 50V at 9A, it's a very powerful driver. It can also be put into single H-Bridge mode in which two motors are driven in sync, or one motor is driven with both outputs, allowing twice the power.

Assembly: Tb67h420ftg.dll

View Source

Declaration

public class Tb67h420ftg

Properties

Motor1

Motor 1

View Source

Declaration

public HBridgeMotor Motor1 { get; protected set; }

Motor2

Motor 2

View Source

Declaration

public HBridgeMotor? Motor2 { get; protected set; }

Fields

hbridgeMode

H-bridge mode

View Source

Declaration

protected Tb67h420ftg.HBridgeMode hbridgeMode