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80 lines
1.7 KiB
80 lines
1.7 KiB
/*@ file DDRunino.ino |
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* |
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* Simple Arduino sketch to run a DDR pad as a keyboard |
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* |
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* https://git.beesbuzz.biz/fluffy/DDRuino/ |
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*/ |
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#include <Keyboard.h> |
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//! Uncomment this to enable the serial debugger to determine the pin mappings |
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//#define DEBUG |
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//! Debounce time in milliseconds |
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constexpr int debounceTime = 10; |
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//! Input button |
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struct Input { |
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int pin; //!< Input pin |
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int keyCode; //!< Mapped key |
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bool pressed; //!< Last read state |
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unsigned long lastChange; //!< Last update time |
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}; |
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/*! Map the input pins to a button on the pad; use debug mode to determine |
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* your button layout if you're not sure |
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*/ |
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Input mapping[] = { |
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{ 4, KEY_RETURN }, |
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{ 5, KEY_ESC }, |
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{ 6, KEY_UP_ARROW }, |
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{ 7, KEY_DOWN_ARROW }, |
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{ 8, KEY_RIGHT_ARROW }, |
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{ 9, KEY_LEFT_ARROW }, |
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}; |
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void setup() |
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{ |
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#ifdef DEBUG |
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Serial.begin(9600); |
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for (int i = 0; i < 12; i++) { |
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pinMode(i, INPUT_PULLUP); |
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} |
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#endif |
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unsigned long now = millis(); |
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for (auto i : mapping) { |
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pinMode(i.pin, INPUT_PULLUP); |
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i.pressed = false; |
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i.lastChange = now; |
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} |
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Keyboard.begin(); |
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} |
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void loop() |
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{ |
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#ifdef DEBUG |
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for (int i = 0; i < 12; i++) { |
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Serial.print(!digitalRead(i) ? "0123456789abcdef"[i] : ' '); |
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} |
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Serial.print('\n'); |
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#endif |
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unsigned long now = millis(); |
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for (auto& i : mapping) { |
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bool val = !digitalRead(i.pin); |
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if (val != i.pressed && (i.lastChange + debounceTime) < now) { |
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if (val) { |
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Keyboard.press(i.keyCode); |
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} else { |
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Keyboard.release(i.keyCode); |
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} |
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i.pressed = val; |
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i.lastChange = now; |
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} |
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} |
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}
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