Buttons

Buttons as a function are only available using pin 0,1,2,A,or B. Alternatively, DRead() can be used with any pin.

• BtnEnable(pin, enable) - sets up a button to be used
  pin: pin number, 'a', or 'b'
  enable: 1 = enable, 0 = disabled
  

• BtnUp(pin)
  pin: pin number, 'a', or 'b'
  Returns: 1 after release first time called. If called again returns 0
  

• BtnDown(pin) Returns a value when button is pressed
  pin: pin number, 'a', or 'b'
  Returns: 1 if button was pressed and continues to return 1 until the button is released

Note

'a' is ASCII a or 97, 'b' is ASCII b or 98. Using 'a', 'A', or 97 yields the same results.

Tip

The timeout for BtnDown() or BtnUp() is fixed to two seconds. Calling after two seconds from last press or release returns 0. If the button is not enabled also returns 0

BtnEnable('a',1)
@Loop
x=BtnDown('a')
If x=1
    PrintLn("Button A")
End
Wait(200)
Goto Loop

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