Commit inicial

1 files changed, 28 insertions, 0 deletions

diff --git a/src/keypad.hpp b/src/keypad.hpp
new file mode 100644
index 0000000..8a99290
--- /dev/null
+++ b/src/keypad.hpp
@@ -0,0 +1,28 @@
+#include "pico/stdlib.h"
+#define OUT true
+#define IN false
+#define KEYPAD_LEN 4
+#pragma once
+
+class Keypad {
+private:
+  // Start private attributes.
+  uint *rows{};
+  uint *cols{};
+  char chars[4][4];
+  // End private attributes.
+  
+  // Start private methods.
+  void initCharArray(char chars[4][4]);
+  void init();
+  uint pressedColumn();
+  void pullPinsDown(uint *pins);
+  void restartPins();
+  // End private methods.
+public:
+  // Start public methods.
+  Keypad(uint *rows, uint *cols, char chars[4][4]);
+  bool keyPressed();
+  char getKey();
+  // End public methods.
+};