2 files changed, 49 insertions, 0 deletions
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
new file mode 100644
index 0000000..572df7e
--- /dev/null
+++ b/examples/CMakeLists.txt
@@ -0,0 +1,22 @@
+cmake_minimum_required(VERSION 3.12)
+
+include($ENV{PICO_SDK_PATH}/external/pico_sdk_import.cmake)
+
+project(keypad_example C CXX ASM)
+
+pico_sdk_init()
+
+add_library(keypad ../src/keypad.cpp ../src/keypad.hpp)
+
+add_executable(keypad_example keypad_example.cpp)
+
+target_include_directories(keypad_example PUBLIC ../src)
+
+# Serial output.
+pico_add_extra_outputs(keypad_example)
+
+target_link_libraries(keypad pico_stdlib hardware_gpio)
+
+target_link_libraries(keypad_example keypad hardware_timer)
+
+add_compile_options(-O0)
diff --git a/examples/keypad_example.cpp b/examples/keypad_example.cpp
new file mode 100644
index 0000000..781b808
--- /dev/null
+++ b/examples/keypad_example.cpp
@@ -0,0 +1,27 @@
+#include <stdio.h>
+#include "pico/types.h"
+#include "pico/time.h"
+#include "pico/stdio.h"
+#include "keypad.hpp"
+
+int main() {
+  uint col_pins[4] = {6, 7, 8, 9};
+  uint row_pins[4] = {16, 17, 18, 19};
+  char keypad_chars[4][4] = {
+    {'1', '2', '3', 'A'},
+    {'4', '5', '6', 'B'},
+    {'7', '8', '9', 'C'},
+    {'*', '0', '#', 'D'}
+  };
+  Keypad keypad(row_pins, col_pins, keypad_chars);
+
+  stdio_init_all();
+  
+  while(true) {
+    char key = keypad.getKey();
+    if(key != '\0')
+      printf("%c\n", key);
+
+    busy_wait_ms(150);
+  }
+}