1 files changed, 20 insertions, 0 deletions
diff --git a/firmware/buttons.cpp b/firmware/buttons.cpp
new file mode 100644
index 0000000..d28c4cc
--- /dev/null
+++ b/firmware/buttons.cpp
@@ -0,0 +1,20 @@
+#include "buttons.h"
+#include <Arduino.h>
+
+#define BTN_UP 4
+#define BTN_DOWN 5
+#define BTN_SELECT 6
+#define BTN_BACK 7
+
+void buttonsInit()
+{
+    pinMode(BTN_UP, INPUT_PULLUP);
+    pinMode(BTN_DOWN, INPUT_PULLUP);
+    pinMode(BTN_SELECT, INPUT_PULLUP);
+    pinMode(BTN_BACK, INPUT_PULLUP);
+}
+
+bool btnUp() { return !digitalRead(BTN_UP); }
+bool btnDown() { return !digitalRead(BTN_DOWN); }
+bool btnSelect() { return !digitalRead(BTN_SELECT); }
+bool btnBack() { return !digitalRead(BTN_BACK); }