B4R Library rAdafruitMotorShield (V2)

This library wraps the following open source project: https://github.com/adafruit/Adafruit_Motor_Shield_V2_Library

This is a beta version. Please try it and post your feedback.

DC motor example (based on their example):
B4X:
Sub Process_Globals
   Public Serial1 As Serial
   Private mshield As AdafruitMotorShield
   Private motor As AdafruitDCMotor
End Sub

Private Sub AppStart
   Serial1.Initialize(115200)
   Log("AppStart")
   mshield.Initialize(0x60, 1600) 'default values
   motor.Initialize(mshield, 1)
   motor.Speed = 150
   motor.Run(motor.COMMAND_FORWARD)
   motor.Run(motor.COMMAND_RELEASE)
   Tick(0)
End Sub

Private Sub Tick(u As Byte)
   Log("Tick")
   motor.Run(motor.COMMAND_FORWARD)
   SetSpeeds
   Log("Tock")
   motor.Run(motor.COMMAND_BACKWARD)
   SetSpeeds
   Log("Tech")
   motor.Run(motor.COMMAND_RELEASE)
   CallSubPlus("Tick", 1000, 0)
End Sub

Private Sub SetSpeeds
   For i = 0 To 254
     motor.Speed = i
     Delay(10)
   Next
   For i = 255 To 1 Step - 1
     motor.Speed = i
     Delay(10)
   Next
End Sub

Motor Stepper example:
B4X:
Sub Process_Globals
   Public Serial1 As Serial
   Private mshield As AdafruitMotorShield
   Private stepper As AdafruitStepperMotor
End Sub

Private Sub AppStart
   Serial1.Initialize(115200)
   Log("AppStart")
   mshield.Initialize(0x60, 1600) 'default values
   stepper.Initialize(mshield, 200, 2)
   stepper.Speed = 10 '10 rpm
   AddLooper("Looper1")
End Sub

Private Sub Looper1
   For Each style As Byte In Array As Byte(stepper.STYLE_SINGLE, stepper.STYLE_DOUBLE, stepper.STYLE_INTERLEAVE)
     Log("style: ", style)
     stepper.Step(100, stepper.DIR_FORWARD, style)
     stepper.Step(100, stepper.DIR_BACKWARD, style)
   Next
   Log("microstep")
   stepper.Step(50, stepper.DIR_FORWARD, stepper.STYLE_MICROSTEP)
   stepper.Step(50, stepper.DIR_BACKWARD, stepper.STYLE_MICROSTEP)
End Sub

The library is attached.
 

Attachments

  • rAdafruitMotorShieldV2.zip
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