Functions

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Functions

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Assuming DFR_Key keypad;

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DFR_Key() - Constructor

Initializes default refreshRate, keyPin, threshold, time, and key inputs.

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keypad.setRate(int r)

Sets the key sample rate at once every 'r' milliseconds.
Default: 10ms

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keypad.getKey()

Returns an integer value based on what key is currently pressed. Return values are as follows:
+ Wait: -1
+ No Key: 0
+ Select: 1
+ Left: 2
+ Up: 3
+ Down: 4
+ Right: 5

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Upcoming Functions (v0.4) - February 2012

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keypad.setARV(int btn, int arv)

Sets the analogue read value for 'btn' [getKey() code] to 'arv'.

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keypad.setThreshold(int thr)

Sets the ARV threshold value to +/- 'thr'.

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